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common/*: update pages of some POSIX special built-in utilities (#11956)

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* exec, export, readonly, set, shift, trap: replace command descriptions

* exec, exit, export, readonly, set, shift, trap, exec, export: replace example descriptions

* exec, trap: replace "More information" links

* trap: remove prefix "SIG" from some command arguments

Although POSIX allows implementations to specify signal names without
the prefix "SIG", I will choose the most portable form.

* export: replace term

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* set: replace term

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* export: replace term

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* export: replace term

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* exec: replace Open Group link

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* exit: replace Open Group link

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* export: replace Open Group link

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* readonly: replace Open Group link

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* set: replace Open Group link

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* shift: replace Open Group link

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* trap: replace Open Group link

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

* exec: explain environment of child process

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>

---------

Co-authored-by: Vitor Henrique <87824454+vitorhcl@users.noreply.github.com>
This commit is contained in:
Alejandro Cervera
2024-01-07 17:38:34 -05:00
committed by GitHub
parent 8f4a2aeb27
commit 0385654986
10 changed files with 48 additions and 51 deletions
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7
pages/common/readonly.md
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@@ -1,10 +1,9 @@
# readonly
> Create or modify read-only variables within a shell script, preventing the variable from being changed by subsequent commands.
> This is useful when you want to ensure that a variable retains a constant value throughout the execution of a script.
> More information: <https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#readonly>.
> Set read-only shell variables.
> More information: <https://manned.org/readonly.1posix>.
- Create a read-only variable:
- Set a read-only variable:
`readonly {{variable_name}}={{value}}`