20 lines
580 B
Plaintext
20 lines
580 B
Plaintext
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# Non-empty traps should be reset in subshell
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# HUP is special in interactive shells
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trap '' HUP
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# QUIT is always special
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trap '' QUIT
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# SYS is not special
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trap '' SYS
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# WINCH is harmless
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trap 'bad: caught WINCH' WINCH
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# With TERM we'll check whether it is reset
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trap 'bad: caught TERM' TERM
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(trap; "$THIS_SH" -c 'kill -HUP $PPID'; echo Ok)
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(trap; "$THIS_SH" -c 'kill -QUIT $PPID'; echo Ok)
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(trap; "$THIS_SH" -c 'kill -SYS $PPID'; echo Ok)
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(trap; "$THIS_SH" -c 'kill -WINCH $PPID'; echo Ok)
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(trap; "$THIS_SH" -c 'kill -TERM $PPID'; echo Bad: TERM is not reset)
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echo Done
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