The first is the return status from a command, and the second is the trap command within your shell.

第一个是命令的返回状态，第二个是外壳中的trap命令。

youdao

The first is the return status from a command, and the second is the trap command within your shell.

第一个是命令的返回状态，第二个是外壳中的trap命令。

youdao