Notes for using SSH in Linux

Article Title: pay attention to the details of SSH in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

By default, the current standard input (stdin) is intercepted during ssh execution. If the ssh command is executed when the Shell redirects the file to the standard input to read the file, the shell script may encounter an error (data loss) when reading the file because ssh intercepts standard input. <Read by ssh> , Or after ssh execution, the file EOF );

Therefore, pay attention to the SSH execution environment, to execute SSH, you can add the-n option on the ssh command to direct its standard input to/dev/null without interfering with the current standard input, or avoid processing files through standard input;