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LINUX
2015.04.30 10:53
[Shell Script] 쉘 스크립트 함수에서 return값 반환
조회 수 25286 댓글 0
1. echo stringslockdir="somedir" testlock(){ retval="" if mkdir "$lockdir" then # directory did not exist, but was created successfully echo >&2 "successfully acquired lock: $lockdir" retval="true" else echo >&2 "cannot acquire lock, giving up on $lockdir" retval="false" fi echo "$retval" } retval=$( testlock ) if [ "$retval" == "true" ] then echo "directory not created" else echo "directory already created" fi 2. return exit statuslockdir="somedir" testlock(){ if mkdir "$lockdir" then # directory did not exist, but was created successfully echo >&2 "successfully acquired lock: $lockdir" retval=0 else echo >&2 "cannot acquire lock, giving up on $lockdir" retval=1 fi return "$retval" } testlock retval=$? if [ "$retval" == 0 ] then echo "directory not created" else echo "directory already created" fi 3. share variablelockdir="somedir" retval=-1 testlock(){ if mkdir "$lockdir" then # directory did not exist, but was created successfully echo >&2 "successfully acquired lock: $lockdir" retval=0 else echo >&2 "cannot acquire lock, giving up on $lockdir" retval=1 fi } testlock if [ "$retval" == 0 ] then echo "directory not created" else echo "directory already created" fi Dreamy의 코드 스크랩내가 모으고 내가 보는
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