20 lines
301 B
Plaintext
20 lines
301 B
Plaintext
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# $FreeBSD$
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set -e
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trap - USR1
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initial=$(trap)
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trap -- -l USR1
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added=$(trap)
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[ -n "$added" ]
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trap - USR1
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second=$(trap)
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[ "$initial" = "$second" ]
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eval "$added"
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added2=$(trap)
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added3=$(trap --)
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[ "$added" = "$added2" ]
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[ "$added2" = "$added3" ]
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trap -- - USR1
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third=$(trap)
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[ "$initial" = "$third" ]
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