23 lines
234 B
Text
23 lines
234 B
Text
HISTFILE=$TMPDIR/bashhist-$$
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set -o history
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set -o histexpand
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echo a
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cat < <(echo !!)
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echo b
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echo !! `echo !!`
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echo c
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echo "$(echo "!" )"
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echo d
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echo "$(echo '!' )"
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echo e
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echo '!' "!"
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echo "'!'"
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set +o history
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rm -f $HISTFILE
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