Fix ‘ll’ Command Not Working in Linux

If you encounter issues with the ‘ll’ command in a Linux system, you can try the following methods to troubleshoot:

1. Use the “ls -l” command instead of “ll” command, as they have the same function of displaying detailed information about files.
2. Check if the package containing the ll command is installed. The ll command is usually provided by installing the package containing the ls command, so you can try reinstalling the package containing the ls command.
3. Check the environment variable configuration of the system. You can use the command echo $PATH to view the system’s environment variable configuration and ensure that it includes the path where the ll command is located.
4. Customize the ll command. If the system does not have the ll command, you can customize an alias to achieve similar functionality. You can add the following content to the ~/.bashrc or ~/.bash_profile file:

alias ll='ls -l'

Then execute the command “source ~/.bashrc” or “source ~/.bash_profile” to make the configuration take effect.

The issue of not being able to use the “ll” command in the Linux system should be resolved by following the above methods.