To redirect error output (stderr) to a file in Linux, you can use the 2> operator. This operator directs the stderr output of a command to a file, rather than displaying it on the screen.
Here's an example of how you can use the 2> operator to redirect error output to a file:
command-name 2> error.log
This will run the command-name command and redirect any error output that it generates to a file called error.log. The error output will not be displayed on the screen.
You can also use the &> operator to redirect both standard output (stdout) and error output (stderr) to the same file. For example:
command-name &> output.log
This will redirect both the stdout and stderr output of the command-name command to the file output.log.
You can also use the > operator to redirect stdout to a file, but this will not redirect stderr. To redirect both stdout and stderr to separate files, you can use the > and 2> operators together. For example:
command-name > output.log 2> error.log
This will redirect the stdout output of the command-name command to output.log and the stderr output to error.log.