111 lines
1.4 KiB
Text
111 lines
1.4 KiB
Text
if : ; then
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set -e
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N=95
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while :; do
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# expr returns 1 if expression is null or 0
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set +e
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N_MOD_100=`expr $N % 100`
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set -e
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echo $N_MOD_100
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N=`expr $N + 1`
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if [ $N -eq 110 ]; then
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break
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fi
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done
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set +e
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fi
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(
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set -e
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false
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echo bad
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)
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echo $?
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x=$(
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set -e
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false
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echo bad
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)
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echo $? $x
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# command subst should not inherit -e
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set -e
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echo $(false; echo ok)
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if set +e
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then
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false
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fi
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echo hi
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set -e
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# a failing command in the compound list following a while, until, or
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# if should not cause the shell to exit
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while false; do
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echo hi
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done
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echo while succeeded
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x=1
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until (( x == 4 )); do
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x=4
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done
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echo until succeeded: $x
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if false; then
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echo oops
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fi
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echo if succeeded
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# failing commands that are part of an AND or OR list should not
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# cause the shell to exit
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false && echo AND list failed
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echo AND list succeeded
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false || echo OR list succeeded
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! false
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echo ! succeeded
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# make sure eval preserves the state of the -e flag and `!' reserved word
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set -e
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if eval false; then
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echo oops
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fi
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echo eval succeeded
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! eval false
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echo ! eval succeeded -- 1
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! eval '(exit 5)'
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echo ! eval succeeded -- 2
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set -e
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until builtin false; do echo a; break; done
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echo $?
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until eval false; do echo b; break; done
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echo $?
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: ${TMPDIR:=/tmp}
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FN=$TMPDIR/set-e-$$
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cat > $FN << EOF
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false
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echo after 1
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false
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EOF
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set -e
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until . $FN; do echo a; break; done
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echo $?
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rm -f $FN
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set +e
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${THIS_SH} ./set-e1.sub
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${THIS_SH} ./set-e2.sub
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${THIS_SH} ./set-e3.sub
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