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tldr/pages/common/readonly.md
Alejandro Cervera 0385654986
common/*: update pages of some POSIX special built-in utilities (#11956)
* 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>
2024-01-07 19:38:34 -03:00

326 B

readonly

Set read-only shell variables. More information: https://manned.org/readonly.1posix.

  • Set a read-only variable:

readonly {{variable_name}}={{value}}

  • Mark a variable as read-only:

readonly {{existing_variable}}

  • [p]rint the names and values of all read-only variables to stdout:

readonly -p