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docs/set: Try to make it a little clearer that you can also query -x

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Fixes #12094
This commit is contained in:
Fabian Boehm
2025-11-23 09:58:58 +01:00
parent acae88e618
commit 0f9749c140
1 changed files with 3 additions and 1 deletions
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doc_src/cmds/set.rst
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@@ -12,7 +12,8 @@ Synopsis
set [-Uflg] NAME[[INDEX ...]] [VALUE ...]
set (-x | --export) (-u | --unexport) [-Uflg] NAME [VALUE ...]
set (-a | --append) (-p | --prepend) [-Uflg] NAME VALUE ...
set (-q | --query) (-e | --erase) [-Uflg] [NAME][[INDEX]] ...]
set (-e | --erase) [-Uflg] [-xu] [NAME][[INDEX]] ...]
set (-q | --query) [-Uflg] [-xu] [NAME][[INDEX]] ...]
set (-S | --show) (-L | --long) [NAME ...]
Description
@@ -88,6 +89,7 @@ Further options:
**-q** or **--query** *NAME*\[*INDEX*\]
Test if the specified variable names are defined.
If an *INDEX* is provided, check for items at that slot.
With a given scope (like **--global**) or attribute (like **--exported** or **--path**) check only variables that match.
Does not output anything, but the shell status is set to the number of variables specified that were not defined, up to a maximum of 255.
If no variable was given, it also returns 255.