Run a command only if another command returns a non-zero exit status.

仅当另一个命令返回非零退出状态时才运行某个命令。

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Similarly, the || control operator separates two commands and runs the second command only if the first command returns a non-zero exit status.

类似地，|| 控制操作符分隔两个命令，并且仅当第一个命令返回非零退出状态时才运行第二个命令。

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