linux命令返回的退出状态1的含义 [英] Meaning of exit status 1 returned by linux command

问题描述

linux命令返回的退出状态1是什么意思?像127一样，退出状态表示找不到命令".

What is meaning of exit status 1 returned by linux command? Like 127 exit status indicates "command not found".

我已经访问了 http://linux.die.net/abs-guide/exitcodes .html 页面，这是否表示退出状态1没有特别的含义?

I have visited http://linux.die.net/abs-guide/exitcodes.html page, does it mean exit status 1 does not have particular special meaning?

推荐答案

唯一的常规约定是零退出状态表示成功，而任何非零退出状态则表示失败.

The only general convention is that a zero exit status signifies success, whereas any non-zero exit status is a failure.

许多-但肯定不是全部-命令行工具会因语法错误而返回退出代码1，即您的参数太少或选项无效.

Many -- but certainly not all -- command-line tools return exit code 1 for syntax error, i.e. you had too few arguments or an invalid option.

很多-但是，不是全部-命令行工具都有手册页.按照惯例，它应记录程序的退出代码，但许多文件则没有.

Many -- but, alas, not all -- command-line tools have a manual page. By convention, it should document the exit codes of the program, but many do not.

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