2>/dev/null
时间: 2023-12-26 08:05:48 浏览: 116
详解nohup /dev/null 2&1 含义的使用
This is a command that redirects error messages to a null device in Unix-like operating systems. The "2" refers to the standard error stream, which is where error messages are typically sent. The "> /dev/null" redirects the error messages to the null device, which discards them instead of displaying them to the user. This can be useful for preventing error messages from cluttering up the terminal or log files.
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