您还可以忽略退出状态的适当的字节。

You can also ignore the appropriate bits of exit status.

youdao

这是因为只要连接成功，最后的退出状态码就是零。

This is because as long as the connection is successful, the last exit status will be zero.

youdao

仅当另一个命令返回零退出状态时才运行某个命令。

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

youdao

Loader returned 1 exit status.

载入器返回1退出当前状态。

哈佛公开课 - 计算机科学课程节选