리눅스 $SHELLOPTS

개요

리눅스 $SHELLOPTS

• "shell options"
• 쉘 옵션들을 담은 리눅스 환경변수
• readonly 속성임
• 콜론(:)으로 구분되는 목록으로 구성된 문자열

항목들은 ABC순으로 정렬됨

root@zetawiki:~# echo $SHELLOPTS
braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor
root@zetawiki:~# readonly | grep SHELLOPTS
declare -r SHELLOPTS="braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor"

실습

root@zetawiki:~# echo $SHELLOPTS
braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor

root@zetawiki:~# set -o vi
root@zetawiki:~# echo $SHELLOPTS
braceexpand:hashall:histexpand:history:interactive-comments:monitor:vi
root@zetawiki:~# set -o emacs
root@zetawiki:~# echo $SHELLOPTS
braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor

root@zetaknow:~# set -e
root@zetaknow:~# echo $SHELLOPTS
braceexpand:emacs:errexit:hashall:histexpand:history:interactive-comments:monitor
root@zetaknow:~# set +e
root@zetaknow:~# echo $SHELLOPTS
braceexpand:emacs:hashall:histexpand:history:interactive-comments:monitor

같이 보기

• 리눅스 readonly
• 리눅스 set