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Examples of how to kill all child jobs when a shell script exits.
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Daniel Perelman 0e4167e786
Fix typo. 		3 years ago
test Fix extra newlines in output. 3 years ago
LICENSE Initial commit 3 years ago
README.md Updated README. 3 years ago
all-full-example.sh Improved full example and added pkill-P version. 3 years ago
all.sh Remove outdated comment. 3 years ago
bash.sh Fix comments. 3 years ago
dash.sh Fix comments. 3 years ago
noop.sh kill_child_jobs() implementation that does nothing for testing. 3 years ago
pkill-P-full-example.sh Fix typo. 3 years ago
pkill-P.sh Fix typo. 3 years ago
zsh.sh Fix comments. 3 years ago

README.md
Escape

kill-child-jobs

Examples of how to kill all child jobs when a shell script exits.

all-full-example.sh starts some jobs, disowns one of them, and kills all jobs when it exits. pkill-P-full-example.sh does the same except it kills all child processes when it exits.

The remaining scripts in the root are variants of the kill_child_jobs() function. The test/test-all.sh script tests them all and generates the following output showing which version of the kill_child_jobs() function works in each shell:

Legend:
    ∞=script does not halt (after 1 second timeout)
    X=disown unsupported by shell
    ☠=all children killed
    🏃=all children still running
    ✔️=expected result (job killed, disowned child alive)

		bash	sh	ash	dash	zsh	ksh

all.sh		✔️	X☠	X☠	X☠	✔️	☠
bash.sh		✔️	X🏃	∞X☠	X🏃	✔️	☠
dash.sh		✔️	X☠	X☠	X☠	🏃	☠
noop.sh		🏃	X🏃	X🏃	X🏃	🏃	🏃
pkill-P.sh	☠	X☠	X☠	X☠	☠	☠
zsh.sh		∞✔️	X🏃	∞X☠	X🏃	✔️	☠