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run0: optionally show superhero emoji on each shell prompt

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This makes use of the infra introduced in 229d4a9806 to indicate visually on each prompt that we are in superuser mode temporarily.
pick ad5de3222f userdbctl: add some basic client-side filtering
This commit is contained in:
Lennart Poettering
2024-10-24 11:36:48 +02:00
parent 9d8f5e22f8
commit 115fac3c29
5 changed files with 89 additions and 18 deletions
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37
man/run0.xml
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@@ -207,6 +207,20 @@
</listitem>
</varlistentry>
<varlistentry>
<term><option>--shell-prompt-prefix=<replaceable>STRING</replaceable></option></term>
<listitem><para>Set a shell prompt prefix string. This ultimately controls the
<varname>$SHELL_PROMPT_PREFIX</varname> environment variable for the invoked program, which is
typically imported into the shell prompt. By default – if emojis are supported – a superhero emoji is
shown (🦸). This default may also be changed (or turned off) by passing the
<varname>$SYSTEMD_RUN_SHELL_PROMPT_PREFIX</varname> environment variable to <varname>run0</varname>,
see below. Set to an empty string to disable shell prompt prefixing.</para>
<xi:include href="version-info.xml" xpointer="v257"/>
</listitem>
</varlistentry>
<varlistentry>
<term><option>--machine=</option></term>
@@ -271,7 +285,30 @@
<xi:include href="version-info.xml" xpointer="v256"/></listitem>
</varlistentry>
<varlistentry>
<term><varname>$SHELL_PROMPT_PREFIX</varname></term>
<listitem><para>By default set to the superhero emoji (if supported), but may be overriden with the
<varname>$SYSTEMD_RUN_SHELL_PROMPT_PREFIX</varname> environment variable (see below), or the
<option>--shell-prompt-prefix=</option> switch (see above).</para>
<xi:include href="version-info.xml" xpointer="v257"/></listitem>
</varlistentry>
</variablelist>
<para>The following variables may be passed to <command>run0</command>:</para>
<variablelist>
<varlistentry>
<term><varname>$SYSTEMD_RUN_SHELL_PROMPT_PREFIX</varname></term>
<listitem><para>If set, overrides the default shell prompt prefix that <command>run0</command> sets
for the invoked shell (the superhero emoji). Set to an empty string to disable shell prompt
prefixing.</para>
<xi:include href="version-info.xml" xpointer="v257"/></listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>