mirror of https://github.com/n-hys/bash.git
56 lines
1.6 KiB
Plaintext
56 lines
1.6 KiB
Plaintext
# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# make sure subshells at the end of pipelines run any exit traps they set
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: | { trap 'echo exit subshell 1' EXIT; exit; }; echo current shell
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: | { trap 'echo exit subshell 2' EXIT; exit; }; echo current shell
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: | { trap 'echo exit subshell 3' EXIT; exit; } | : ; echo current shell
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: | { trap 'echo exit subshell 4' EXIT; exit; } | : ; echo current shell
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trap 'echo inherited exit trap' EXIT
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: | { exit; } ; echo outside 1
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: | ( exit; ) ; echo outside 2
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: | { exit; } | : ; echo outside 3
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: | ( exit; ) | : ; echo outside 4
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trap - EXIT
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# make sure group commands that are not at the beginning or end of pipelines
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# run an EXIT trap, with and without the exit builtin
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echo ignored |
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{
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trap 'echo "in trap EXIT">&2' EXIT
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sleep 4 &
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echo 'sleep 2'>&2
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sleep 2
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echo 'wait $!'>&2
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wait $!
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echo 'exit'>&2
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exit
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} | cat
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echo ignored |
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{
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trap 'echo "in trap EXIT">&2' EXIT
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sleep 4 &
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echo 'sleep 2'>&2
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sleep 2
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echo 'wait $!'>&2
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wait $!
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echo 'exit'>&2
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} | cat
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