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travishen/posix-shell-exit-code.md

Created April 21, 2021 10:30
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posix-shell-exit-code.md
exit code meaning
0 命令成功退出
> 0 在重定向或單詞展開期間失敗
1-125 命令不成功退出
126 找到命令，但文件無法執行
127 找不到命令
> 128 命令因收到信號而死亡
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