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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>
20 lines
415 B
Markdown
20 lines
415 B
Markdown
# trap
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> Execute a command upon an event.
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> More information: <https://www.gnu.org/software/bash/manual/bash.html#index-trap>.
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- List the available event names (e.g. `SIGWINCH`):
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`trap -l`
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- List the commands and the names of the expected events:
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`trap -p`
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- Execute a command when a signal is received:
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`trap 'echo "Caught signal {{SIGHUP}}"' {{SIGHUP}}`
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- Remove commands:
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`trap - {{SIGHUP}} {{SIGINT}}`
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