If you’re trying to fix a problem, you might want to capture the output of a command for reproduction on a website forum, along with the command you typed to get the results. If you’re working in a terminal window, you can cut and paste, but what if you’re working at a virtual console? If you simply want to capture the result of a command, just redirect the output:
ls > output.txt 2>&1
This will send both the output and error output (if any) of the ls command to output.txt.
