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<article role="main" id="furo-main-content">
<section id="environment-variables">
<h1>Environment Variables<a class="headerlink" href="#environment-variables" title="Link to this heading">¶</a></h1>
<p>The following displays information about the environment variables that
affect xonsh in some way. It also lists their default values, if
applicable.</p>
<div class="table-wrapper docutils container" id="id179">
<table class="docutils align-default" id="id179">
<caption><span class="caption-text"><a class="reference internal" href="#system-environment-variables"><span class="std std-ref">System Environment Variables</span></a></span><a class="headerlink" href="#id179" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#HOSTNAME"><span class="std std-ref">$HOSTNAME</span></a></p></td>
<td><p><a class="reference internal" href="#HOSTTYPE"><span class="std std-ref">$HOSTTYPE</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#OLDPWD"><span class="std std-ref">$OLDPWD</span></a></p></td>
<td><p><a class="reference internal" href="#PATH"><span class="std std-ref">$PATH</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#PATHEXT"><span class="std std-ref">$PATHEXT</span></a></p></td>
<td><p><a class="reference internal" href="#PWD"><span class="std std-ref">$PWD</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#SHLVL"><span class="std std-ref">$SHLVL</span></a></p></td>
<td><p><a class="reference internal" href="#TERM"><span class="std std-ref">$TERM</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XDG_CACHE_HOME"><span class="std std-ref">$XDG_CACHE_HOME</span></a></p></td>
<td><p><a class="reference internal" href="#XDG_CONFIG_HOME"><span class="std std-ref">$XDG_CONFIG_HOME</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XDG_DATA_DIRS"><span class="std std-ref">$XDG_DATA_DIRS</span></a></p></td>
<td><p><a class="reference internal" href="#XDG_DATA_HOME"><span class="std std-ref">$XDG_DATA_HOME</span></a></p></td>
</tr>
<tr class="row-odd"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id180">
<table class="docutils align-default" id="id180">
<caption><span class="caption-text"><a class="reference internal" href="#general"><span class="std std-ref">General</span></a></span><a class="headerlink" href="#id180" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#UPDATE_OS_ENVIRON"><span class="std std-ref">$UPDATE_OS_ENVIRON</span></a></p></td>
<td><p><a class="reference internal" href="#XONSHRC"><span class="std std-ref">$XONSHRC</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSHRC_DIR"><span class="std std-ref">$XONSHRC_DIR</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_COLOR_STYLE"><span class="std std-ref">$XONSH_COLOR_STYLE</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_CONFIG_DIR"><span class="std std-ref">$XONSH_CONFIG_DIR</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_DATA_DIR"><span class="std std-ref">$XONSH_DATA_DIR</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_DEBUG"><span class="std std-ref">$XONSH_DEBUG</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_DEBUG_BREAKPOINT_ENGINE"><span class="std std-ref">$XONSH_DEBUG_BREAKPOINT_ENGINE</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_ENCODING"><span class="std std-ref">$XONSH_ENCODING</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_ENCODING_ERRORS"><span class="std std-ref">$XONSH_ENCODING_ERRORS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_ENV_PATTERN_DIRS"><span class="std std-ref">$XONSH_ENV_PATTERN_DIRS</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_ENV_PATTERN_PATH"><span class="std std-ref">$XONSH_ENV_PATTERN_PATH</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_INTERACTIVE"><span class="std std-ref">$XONSH_INTERACTIVE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_LOGIN"><span class="std std-ref">$XONSH_LOGIN</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_MODE"><span class="std std-ref">$XONSH_MODE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_ORIGIN_ENV_FILE"><span class="std std-ref">$XONSH_ORIGIN_ENV_FILE</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_SOURCE"><span class="std std-ref">$XONSH_SOURCE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_STORE_STDIN"><span class="std std-ref">$XONSH_STORE_STDIN</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_STYLE_OVERRIDES"><span class="std std-ref">$XONSH_STYLE_OVERRIDES</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_SYS_CONFIG_DIR"><span class="std std-ref">$XONSH_SYS_CONFIG_DIR</span></a></p></td>
</tr>
<tr class="row-odd"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id181">
<table class="docutils align-default" id="id181">
<caption><span class="caption-text"><a class="reference internal" href="#subprocess-settings"><span class="std std-ref">Subprocess Settings</span></a></span><a class="headerlink" href="#id181" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#LAST_RETURN_CODE"><span class="std std-ref">$LAST_RETURN_CODE</span></a></p></td>
<td><p><a class="reference internal" href="#THREAD_SUBPROCS"><span class="std std-ref">$THREAD_SUBPROCS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_APPEND_NEWLINE"><span class="std std-ref">$XONSH_APPEND_NEWLINE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_BUILTINS_TO_CMD"><span class="std std-ref">$XONSH_BUILTINS_TO_CMD</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_CAPTURE_ALWAYS"><span class="std std-ref">$XONSH_CAPTURE_ALWAYS</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_PROC_FREQUENCY"><span class="std std-ref">$XONSH_PROC_FREQUENCY</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_SUBPROC_CAPTURED_PRINT_STDERR"><span class="std std-ref">$XONSH_SUBPROC_CAPTURED_PRINT_STDERR</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_SUBPROC_CMD_RAISE_ERROR"><span class="std std-ref">$XONSH_SUBPROC_CMD_RAISE_ERROR</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_SUBPROC_OUTPUT_FORMAT"><span class="std std-ref">$XONSH_SUBPROC_OUTPUT_FORMAT</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_SUBPROC_RAISE_ERROR"><span class="std std-ref">$XONSH_SUBPROC_RAISE_ERROR</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_SUBPROC_TRACE"><span class="std std-ref">$XONSH_SUBPROC_TRACE</span></a></p></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id182">
<table class="docutils align-default" id="id182">
<caption><span class="caption-text"><a class="reference internal" href="#error-handling-settings"><span class="std std-ref">Error Handling Settings</span></a></span><a class="headerlink" href="#id182" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_SHOW_TRACEBACK"><span class="std std-ref">$XONSH_SHOW_TRACEBACK</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_TRACEBACK_LOGFILE"><span class="std std-ref">$XONSH_TRACEBACK_LOGFILE</span></a></p></td>
</tr>
<tr class="row-even"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id183">
<table class="docutils align-default" id="id183">
<caption><span class="caption-text"><a class="reference internal" href="#jobs-settings"><span class="std std-ref">Jobs Settings</span></a></span><a class="headerlink" href="#id183" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#AUTO_CONTINUE"><span class="std std-ref">$AUTO_CONTINUE</span></a></p></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id184">
<table class="docutils align-default" id="id184">
<caption><span class="caption-text"><a class="reference internal" href="#language-and-locale-settings"><span class="std std-ref">Language and locale settings.</span></a></span><a class="headerlink" href="#id184" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#LANG"><span class="std std-ref">$LANG</span></a></p></td>
<td><p><a class="reference internal" href="#LC_COLLATE"><span class="std std-ref">$LC_COLLATE</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#LC_CTYPE"><span class="std std-ref">$LC_CTYPE</span></a></p></td>
<td><p><a class="reference internal" href="#LC_MESSAGES"><span class="std std-ref">$LC_MESSAGES</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#LC_MONETARY"><span class="std std-ref">$LC_MONETARY</span></a></p></td>
<td><p><a class="reference internal" href="#LC_NUMERIC"><span class="std std-ref">$LC_NUMERIC</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#LC_TIME"><span class="std std-ref">$LC_TIME</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_DATETIME_FORMAT"><span class="std std-ref">$XONSH_DATETIME_FORMAT</span></a></p></td>
</tr>
<tr class="row-odd"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id185">
<table class="docutils align-default" id="id185">
<caption><span class="caption-text"><a class="reference internal" href="#cache-settings"><span class="std std-ref">Cache Settings</span></a></span><a class="headerlink" href="#id185" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#COMMANDS_CACHE_SAVE_INTERMEDIATE"><span class="std std-ref">$COMMANDS_CACHE_SAVE_INTERMEDIATE</span></a></p></td>
<td><p><a class="reference internal" href="#ENABLE_COMMANDS_CACHE"><span class="std std-ref">$ENABLE_COMMANDS_CACHE</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_CACHE_DIR"><span class="std std-ref">$XONSH_CACHE_DIR</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_CACHE_EVERYTHING"><span class="std std-ref">$XONSH_CACHE_EVERYTHING</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_CACHE_SCRIPTS"><span class="std std-ref">$XONSH_CACHE_SCRIPTS</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_COMMANDS_CACHE_READ_DIR_ONCE"><span class="std std-ref">$XONSH_COMMANDS_CACHE_READ_DIR_ONCE</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_COMMANDS_CACHE_TRACE"><span class="std std-ref">$XONSH_COMMANDS_CACHE_TRACE</span></a></p></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id186">
<table class="docutils align-default" id="id186">
<caption><span class="caption-text"><a class="reference internal" href="#cd-behavior"><span class="std std-ref">cd Behavior</span></a></span><a class="headerlink" href="#id186" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#AUTO_CD"><span class="std std-ref">$AUTO_CD</span></a></p></td>
<td><p><a class="reference internal" href="#AUTO_PUSHD"><span class="std std-ref">$AUTO_PUSHD</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#CDPATH"><span class="std std-ref">$CDPATH</span></a></p></td>
<td><p><a class="reference internal" href="#COMPLETE_DOTS"><span class="std std-ref">$COMPLETE_DOTS</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#DIRSTACK_SIZE"><span class="std std-ref">$DIRSTACK_SIZE</span></a></p></td>
<td><p><a class="reference internal" href="#PUSHD_MINUS"><span class="std std-ref">$PUSHD_MINUS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#PUSHD_SILENT"><span class="std std-ref">$PUSHD_SILENT</span></a></p></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id187">
<table class="docutils align-default" id="id187">
<caption><span class="caption-text"><a class="reference internal" href="#interpreter-behavior"><span class="std std-ref">Interpreter Behavior</span></a></span><a class="headerlink" href="#id187" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#DOTGLOB"><span class="std std-ref">$DOTGLOB</span></a></p></td>
<td><p><a class="reference internal" href="#EXPAND_ENV_VARS"><span class="std std-ref">$EXPAND_ENV_VARS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#FOREIGN_ALIASES_OVERRIDE"><span class="std std-ref">$FOREIGN_ALIASES_OVERRIDE</span></a></p></td>
<td><p><a class="reference internal" href="#FOREIGN_ALIASES_SUPPRESS_SKIP_MESSAGE"><span class="std std-ref">$FOREIGN_ALIASES_SUPPRESS_SKIP_MESSAGE</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#GLOB_SORTED"><span class="std std-ref">$GLOB_SORTED</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_SUBPROC_ARG_EXPANDUSER"><span class="std std-ref">$XONSH_SUBPROC_ARG_EXPANDUSER</span></a></p></td>
</tr>
<tr class="row-even"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id188">
<table class="docutils align-default" id="id188">
<caption><span class="caption-text"><a class="reference internal" href="#xontrib-settings"><span class="std std-ref">Xontrib Settings</span></a></span><a class="headerlink" href="#id188" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONTRIBS_AUTOLOAD_DISABLED"><span class="std std-ref">$XONTRIBS_AUTOLOAD_DISABLED</span></a></p></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id189">
<table class="docutils align-default" id="id189">
<caption><span class="caption-text"><a class="reference internal" href="#interactive-prompt"><span class="std std-ref">Interactive Prompt</span></a></span><a class="headerlink" href="#id189" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#BOTTOM_TOOLBAR"><span class="std std-ref">$BOTTOM_TOOLBAR</span></a></p></td>
<td><p><a class="reference internal" href="#COLOR_INPUT"><span class="std std-ref">$COLOR_INPUT</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#COLOR_RESULTS"><span class="std std-ref">$COLOR_RESULTS</span></a></p></td>
<td><p><a class="reference internal" href="#DYNAMIC_CWD_ELISION_CHAR"><span class="std std-ref">$DYNAMIC_CWD_ELISION_CHAR</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#DYNAMIC_CWD_WIDTH"><span class="std std-ref">$DYNAMIC_CWD_WIDTH</span></a></p></td>
<td><p><a class="reference internal" href="#IGNOREEOF"><span class="std std-ref">$IGNOREEOF</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#INDENT"><span class="std std-ref">$INDENT</span></a></p></td>
<td><p><a class="reference internal" href="#LS_COLORS"><span class="std std-ref">$LS_COLORS</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#MULTILINE_PROMPT"><span class="std std-ref">$MULTILINE_PROMPT</span></a></p></td>
<td><p><a class="reference internal" href="#MULTILINE_PROMPT_POS"><span class="std std-ref">$MULTILINE_PROMPT_POS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#MULTILINE_PROMPT_PRE"><span class="std std-ref">$MULTILINE_PROMPT_PRE</span></a></p></td>
<td><p><a class="reference internal" href="#PRETTY_PRINT_RESULTS"><span class="std std-ref">$PRETTY_PRINT_RESULTS</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="prompt.html#prompt"><span class="std std-ref">$PROMPT</span></a></p></td>
<td><p><a class="reference internal" href="#PROMPT_FIELDS"><span class="std std-ref">$PROMPT_FIELDS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#PROMPT_REFRESH_INTERVAL"><span class="std std-ref">$PROMPT_REFRESH_INTERVAL</span></a></p></td>
<td><p><a class="reference internal" href="#PROMPT_TOKENS_FORMATTER"><span class="std std-ref">$PROMPT_TOKENS_FORMATTER</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#RIGHT_PROMPT"><span class="std std-ref">$RIGHT_PROMPT</span></a></p></td>
<td><p><a class="reference internal" href="#SHELL_TYPE"><span class="std std-ref">$SHELL_TYPE</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#SUGGEST_COMMANDS"><span class="std std-ref">$SUGGEST_COMMANDS</span></a></p></td>
<td><p><a class="reference internal" href="#SUGGEST_MAX_NUM"><span class="std std-ref">$SUGGEST_MAX_NUM</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#SUGGEST_THRESHOLD"><span class="std std-ref">$SUGGEST_THRESHOLD</span></a></p></td>
<td><p><a class="reference internal" href="#SUPPRESS_BRANCH_TIMEOUT_MESSAGE"><span class="std std-ref">$SUPPRESS_BRANCH_TIMEOUT_MESSAGE</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#TITLE"><span class="std std-ref">$TITLE</span></a></p></td>
<td><p><a class="reference internal" href="#UPDATE_PROMPT_ON_KEYPRESS"><span class="std std-ref">$UPDATE_PROMPT_ON_KEYPRESS</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#VC_BRANCH_TIMEOUT"><span class="std std-ref">$VC_BRANCH_TIMEOUT</span></a></p></td>
<td><p><a class="reference internal" href="#VC_GIT_INCLUDE_UNTRACKED"><span class="std std-ref">$VC_GIT_INCLUDE_UNTRACKED</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#VC_HG_SHOW_BRANCH"><span class="std std-ref">$VC_HG_SHOW_BRANCH</span></a></p></td>
<td><p><a class="reference internal" href="#VIRTUAL_ENV"><span class="std std-ref">$VIRTUAL_ENV</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_HISTORY_MATCH_ANYWHERE"><span class="std std-ref">$XONSH_HISTORY_MATCH_ANYWHERE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_PROMPT_SHOW_SUBPROC_ERROR"><span class="std std-ref">$XONSH_PROMPT_SHOW_SUBPROC_ERROR</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_STDERR_POSTFIX"><span class="std std-ref">$XONSH_STDERR_POSTFIX</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_STDERR_PREFIX"><span class="std std-ref">$XONSH_STDERR_PREFIX</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_SUPPRESS_WELCOME"><span class="std std-ref">$XONSH_SUPPRESS_WELCOME</span></a></p></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id190">
<table class="docutils align-default" id="id190">
<caption><span class="caption-text"><a class="reference internal" href="#prompt-toolkit-shell"><span class="std std-ref">Prompt Toolkit shell</span></a></span><a class="headerlink" href="#id190" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#AUTO_SUGGEST_IN_COMPLETIONS"><span class="std std-ref">$AUTO_SUGGEST_IN_COMPLETIONS</span></a></p></td>
<td><p><a class="reference internal" href="#MOUSE_SUPPORT"><span class="std std-ref">$MOUSE_SUPPORT</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#PROMPT_TOOLKIT_COLOR_DEPTH"><span class="std std-ref">$PROMPT_TOOLKIT_COLOR_DEPTH</span></a></p></td>
<td><p><a class="reference internal" href="#PTK_STYLE_OVERRIDES"><span class="std std-ref">$PTK_STYLE_OVERRIDES</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#VI_MODE"><span class="std std-ref">$VI_MODE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_AUTOPAIR"><span class="std std-ref">$XONSH_AUTOPAIR</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_COPY_ON_DELETE"><span class="std std-ref">$XONSH_COPY_ON_DELETE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_CTRL_BKSP_DELETION"><span class="std std-ref">$XONSH_CTRL_BKSP_DELETION</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_PROMPT_AUTO_SUGGEST"><span class="std std-ref">$XONSH_PROMPT_AUTO_SUGGEST</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_PROMPT_CURSOR_SHAPE"><span class="std std-ref">$XONSH_PROMPT_CURSOR_SHAPE</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_PROMPT_NEXT_CMD"><span class="std std-ref">$XONSH_PROMPT_NEXT_CMD</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_PROMPT_NEXT_CMD_SUGGESTION"><span class="std std-ref">$XONSH_PROMPT_NEXT_CMD_SUGGESTION</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_USE_SYSTEM_CLIPBOARD"><span class="std std-ref">$XONSH_USE_SYSTEM_CLIPBOARD</span></a></p></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id191">
<table class="docutils align-default" id="id191">
<caption><span class="caption-text"><a class="reference internal" href="#asynchronous-prompt"><span class="std std-ref">Asynchronous Prompt</span></a></span><a class="headerlink" href="#id191" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#ASYNC_INVALIDATE_INTERVAL"><span class="std std-ref">$ASYNC_INVALIDATE_INTERVAL</span></a></p></td>
<td><p><a class="reference internal" href="#ASYNC_PROMPT_THREAD_WORKERS"><span class="std std-ref">$ASYNC_PROMPT_THREAD_WORKERS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#ENABLE_ASYNC_PROMPT"><span class="std std-ref">$ENABLE_ASYNC_PROMPT</span></a></p></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id192">
<table class="docutils align-default" id="id192">
<caption><span class="caption-text"><a class="reference internal" href="#interactive-prompt-history"><span class="std std-ref">Interactive Prompt History</span></a></span><a class="headerlink" href="#id192" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#HISTCONTROL"><span class="std std-ref">$HISTCONTROL</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_HISTORY_BACKEND"><span class="std std-ref">$XONSH_HISTORY_BACKEND</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_HISTORY_FILE"><span class="std std-ref">$XONSH_HISTORY_FILE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_HISTORY_IGNORE_REGEX"><span class="std std-ref">$XONSH_HISTORY_IGNORE_REGEX</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_HISTORY_SAVE_CWD"><span class="std std-ref">$XONSH_HISTORY_SAVE_CWD</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_HISTORY_SIGINT_FLUSH"><span class="std std-ref">$XONSH_HISTORY_SIGINT_FLUSH</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_HISTORY_SIZE"><span class="std std-ref">$XONSH_HISTORY_SIZE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_STORE_STDOUT"><span class="std std-ref">$XONSH_STORE_STDOUT</span></a></p></td>
</tr>
<tr class="row-odd"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id193">
<table class="docutils align-default" id="id193">
<caption><span class="caption-text"><a class="reference internal" href="#tab-completion-behavior"><span class="std std-ref">Tab-completion behavior.</span></a></span><a class="headerlink" href="#id193" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#ALIAS_COMPLETIONS_OPTIONS_BY_DEFAULT"><span class="std std-ref">$ALIAS_COMPLETIONS_OPTIONS_BY_DEFAULT</span></a></p></td>
<td><p><a class="reference internal" href="#ALIAS_COMPLETIONS_OPTIONS_LONGEST"><span class="std std-ref">$ALIAS_COMPLETIONS_OPTIONS_LONGEST</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#BASH_COMPLETIONS"><span class="std std-ref">$BASH_COMPLETIONS</span></a></p></td>
<td><p><a class="reference internal" href="#CMD_COMPLETIONS_SHOW_DESC"><span class="std std-ref">$CMD_COMPLETIONS_SHOW_DESC</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#COMPLETIONS_BRACKETS"><span class="std std-ref">$COMPLETIONS_BRACKETS</span></a></p></td>
<td><p><a class="reference internal" href="#COMPLETION_QUERY_LIMIT"><span class="std std-ref">$COMPLETION_QUERY_LIMIT</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#FUZZY_PATH_COMPLETION"><span class="std std-ref">$FUZZY_PATH_COMPLETION</span></a></p></td>
<td><p><a class="reference internal" href="#SUBSEQUENCE_PATH_COMPLETION"><span class="std std-ref">$SUBSEQUENCE_PATH_COMPLETION</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_BASH_PATH_OVERRIDE"><span class="std std-ref">$XONSH_BASH_PATH_OVERRIDE</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_COMPLETER_DIRS"><span class="std std-ref">$XONSH_COMPLETER_DIRS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#XONSH_COMPLETER_EMOJI_PREFIX"><span class="std std-ref">$XONSH_COMPLETER_EMOJI_PREFIX</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_COMPLETER_MODE"><span class="std std-ref">$XONSH_COMPLETER_MODE</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#XONSH_COMPLETER_SYMBOLS_PREFIX"><span class="std std-ref">$XONSH_COMPLETER_SYMBOLS_PREFIX</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_COMPLETER_TRACE"><span class="std std-ref">$XONSH_COMPLETER_TRACE</span></a></p></td>
</tr>
<tr class="row-even"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id194">
<table class="docutils align-default" id="id194">
<caption><span class="caption-text"><a class="reference internal" href="#prompt-toolkit-tab-completion"><span class="std std-ref">Prompt Toolkit tab-completion</span></a></span><a class="headerlink" href="#id194" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#COMPLETIONS_CONFIRM"><span class="std std-ref">$COMPLETIONS_CONFIRM</span></a></p></td>
<td><p><a class="reference internal" href="#COMPLETIONS_DISPLAY"><span class="std std-ref">$COMPLETIONS_DISPLAY</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#COMPLETIONS_MENU_ROWS"><span class="std std-ref">$COMPLETIONS_MENU_ROWS</span></a></p></td>
<td><p><a class="reference internal" href="#COMPLETION_IN_THREAD"><span class="std std-ref">$COMPLETION_IN_THREAD</span></a></p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="#COMPLETION_MODE"><span class="std std-ref">$COMPLETION_MODE</span></a></p></td>
<td><p><a class="reference internal" href="#UPDATE_COMPLETIONS_ON_KEYPRESS"><span class="std std-ref">$UPDATE_COMPLETIONS_ON_KEYPRESS</span></a></p></td>
</tr>
<tr class="row-even"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id195">
<table class="docutils align-default" id="id195">
<caption><span class="caption-text"><a class="reference internal" href="#windows-os"><span class="std std-ref">Windows OS</span></a></span><a class="headerlink" href="#id195" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#ANSICON"><span class="std std-ref">$ANSICON</span></a></p></td>
<td><p><a class="reference internal" href="#FORCE_POSIX_PATHS"><span class="std std-ref">$FORCE_POSIX_PATHS</span></a></p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="#INTENSIFY_COLORS_ON_WIN"><span class="std std-ref">$INTENSIFY_COLORS_ON_WIN</span></a></p></td>
<td><p><a class="reference internal" href="#XONSH_WIN_CONSOLE_HISTORY_BUFFERS"><span class="std std-ref">$XONSH_WIN_CONSOLE_HISTORY_BUFFERS</span></a></p></td>
</tr>
<tr class="row-odd"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<div class="table-wrapper docutils container" id="id196">
<table class="docutils align-default" id="id196">
<caption><span class="caption-text"><a class="reference internal" href="#deprecated-settings"><span class="std std-ref">Deprecated settings.</span></a></span><a class="headerlink" href="#id196" title="Link to this table">¶</a></caption>
<tbody>
<tr class="row-odd"><td><p><a class="reference internal" href="#AUTO_SUGGEST"><span class="std std-ref">$AUTO_SUGGEST</span></a></p></td>
<td><p><a class="reference internal" href="#RAISE_SUBPROC_ERROR"><span class="std std-ref">$RAISE_SUBPROC_ERROR</span></a></p></td>
</tr>
<tr class="row-even"><td></td>
<td></td>
</tr>
</tbody>
</table>
</div>
<section id="system-environment-variables">
<span id="id1"></span><h2>System Environment Variables<a class="headerlink" href="#system-environment-variables" title="Link to this heading">¶</a></h2>
<p>Common, well-known variables inherited from the surrounding OS / shell
(POSIX-standard and XDG Base Directory Specification). They are not
xonsh-specific — xonsh only provides sensible defaults and lets scripts
read/write them the same way any other shell would.</p>
<section id="HOSTNAME">
<span id="hostname"></span><h3>$HOSTNAME<a class="headerlink" href="#HOSTNAME" title="Link to this heading">¶</a></h3>
<p>Automatically set to the name of the current host.</p>
<p><strong>configurable:</strong> True</p>
<p><strong>default:</strong> <function SystemSetting.<lambda> at 0x7f2a99cfe840></p>
<p><strong>store_as_str:</strong> False</p>
<hr class="docutils" />
</section>
<section id="HOSTTYPE">
<span id="hosttype"></span><h3>$HOSTTYPE<a class="headerlink" href="#HOSTTYPE" title="Link to this heading">¶</a></h3>
<p>Automatically set to a string that fully describes the system type on which xonsh is executing.</p>
<p><strong>configurable:</strong> True</p>
<p><strong>default:</strong> <function SystemSetting.<lambda> at 0x7f2a99cfe8e0></p>
<p><strong>store_as_str:</strong> False</p>
<hr class="docutils" />
</section>
<section id="OLDPWD">
<span id="oldpwd"></span><h3>$OLDPWD<a class="headerlink" href="#OLDPWD" title="Link to this heading">¶</a></h3>
<p>Used to represent a previous present working directory.</p>
<p><strong>configurable:</strong> False</p>
<p><strong>default:</strong> ‘.’</p>
<p><strong>store_as_str:</strong> False</p>
<hr class="docutils" />
</section>
<section id="PATH">
<span id="path"></span><h3>$PATH<a class="headerlink" href="#PATH" title="Link to this heading">¶</a></h3>
<p>List of strings representing where to look for executables.</p>
<p><strong>configurable:</strong> True</p>
<p><strong>default:</strong></p>
<ul class="simple">
<li><p><strong>Windows</strong>: <code class="docutils literal notranslate"><span class="pre">Path</span></code> value from registry <code class="docutils literal notranslate"><span class="pre">HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session</span> <span class="pre">Manager\Environment</span></code></p></li>
<li><p><strong>macOS</strong>: <code class="docutils literal notranslate"><span class="pre">('/usr/local/bin',</span> <span class="pre">'/usr/bin',</span> <span class="pre">'/bin',</span> <span class="pre">'/usr/sbin',</span> <span class="pre">'/sbin')</span></code></p></li>
<li><p><strong>Linux/Cygwin/MSYS</strong> (arch-like): <code class="docutils literal notranslate"><span class="pre">('/usr/local/sbin',</span> <span class="pre">'/usr/local/bin',</span> <span class="pre">'/usr/bin',</span> <span class="pre">'/usr/bin/site_perl',</span> <span class="pre">'/usr/bin/vendor_perl',</span> <span class="pre">'/usr/bin/core_perl')</span></code></p></li>
<li><p><strong>Linux/Cygwin/MSYS</strong> (other): <code class="docutils literal notranslate"><span class="pre">('~/bin',</span> <span class="pre">'/usr/local/sbin',</span> <span class="pre">'/usr/local/bin',</span> <span class="pre">'/usr/sbin',</span> <span class="pre">'/usr/bin',</span> <span class="pre">'/sbin',</span> <span class="pre">'/bin',</span> <span class="pre">'/usr/games',</span> <span class="pre">'/usr/local/games')</span></code></p></li>
</ul>
<p><strong>store_as_str:</strong> False</p>
<hr class="docutils" />
</section>
<section id="PATHEXT">
<span id="pathext"></span><h3>$PATHEXT<a class="headerlink" href="#PATHEXT" title="Link to this heading">¶</a></h3>
<p>Sequence of extension strings (e.g., <code class="docutils literal notranslate"><span class="pre">.EXE</span></code>) for filtering valid executables by. Each element must be uppercase.</p>
<p><strong>configurable:</strong> True</p>
<p><strong>default:</strong> []</p>
<p><strong>store_as_str:</strong> False</p>
<hr class="docutils" />
</section>
<section id="PWD">
<span id="pwd"></span><h3>$PWD<a class="headerlink" href="#PWD" title="Link to this heading">¶</a></h3>
<p>Current working directory.</p>
<p><strong>configurable:</strong> False</p>
<p><strong>default:</strong> os.getcwd()</p>
<p><strong>store_as_str:</strong> False</p>
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</section>
<section id="SHLVL">
<span id="shlvl"></span><h3>$SHLVL<a class="headerlink" href="#SHLVL" title="Link to this heading">¶</a></h3>
<p>Shell nesting level typed as integer, mirrors bash’s <code class="docutils literal notranslate"><span class="pre">$SHLVL</span></code>.</p>
<p><strong>configurable:</strong> False</p>
<p><strong>default:</strong> 0</p>
<p><strong>store_as_str:</strong> False</p>
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</section>
<section id="TERM">
<span id="term"></span><h3>$TERM<a class="headerlink" href="#TERM" title="Link to this heading">¶</a></h3>
<p>TERM is sometimes set by the terminal emulator. This is used (when valid) to determine whether the terminal emulator can support the selected shell, or whether or not to set the title. Users shouldn’t need to set this themselves. Note that this variable should be set as early as possible in order to ensure it is effective. Here are a few options:</p>
<ul class="simple">
<li><p>Set this from the program that launches xonsh. On POSIX systems,
this can be performed by using env, e.g.
<code class="docutils literal notranslate"><span class="pre">/usr/bin/env</span> <span class="pre">TERM=xterm-color</span> <span class="pre">xonsh</span></code> or similar.</p></li>
<li><p>From the xonsh command line, namely <code class="docutils literal notranslate"><span class="pre">xonsh</span> <span class="pre">-DTERM=xterm-color</span></code>.</p></li>
<li><p>In the config file with <code class="docutils literal notranslate"><span class="pre">{"env":</span> <span class="pre">{"TERM":</span> <span class="pre">"xterm-color"}}</span></code>.</p></li>
<li><p>Lastly, in xonshrc with <code class="docutils literal notranslate"><span class="pre">$TERM</span></code></p></li>
</ul>
<p>Ideally, your terminal emulator will set this correctly but that does not always happen.</p>
<p><strong>configurable:</strong> False</p>
<p><strong>default:</strong> not defined</p>
<p><strong>store_as_str:</strong> False</p>
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</section>
<section id="XDG_CACHE_HOME">
<span id="xdg-cache-home"></span><h3>$XDG_CACHE_HOME<a class="headerlink" href="#XDG_CACHE_HOME" title="Link to this heading">¶</a></h3>
<p>The base directory relative to which user-specific non-essential data files should be stored.</p>
<p><strong>configurable:</strong> True</p>
<p><strong>default:</strong> <code class="docutils literal notranslate"><span class="pre">~/.cache</span></code></p>
<p><strong>store_as_str:</strong> False</p>
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</section>
<section id="XDG_CONFIG_HOME">
<span id="xdg-config-home"></span><h3>$XDG_CONFIG_HOME<a class="headerlink" href="#XDG_CONFIG_HOME" title="Link to this heading">¶</a></h3>
<p>Open desktop standard configuration home dir. This is the same default as used in the standard.</p>
<p><strong>configurable:</strong> False</p>