fuser:tldr:a35d8
The command "fuser" is a Unix/Linux command used to identify processes that are currently accessing a specific file or directory.
The "${filename_or_directory}" is a placeholder for the actual filename or directory path that you need to specify. It could be a specific file or a directory that you want to check for active processes accessing it.
When you execute the command "fuser ${filename_or_directory}", it will display a list of process IDs (PIDs) of all the processes that are currently accessing the specified file or directory. This can help you identify which processes might be causing issues or preventing you from performing certain operations on that file or directory.
For example, if you run "fuser /home/user/docs", it will show you all the processes that are currently using or accessing the "/home/user/docs" directory.