How to check which process is using a file is a crucial step in troubleshooting file access issues. When a file is locked and cannot be accessed, it is helpful to know which process is using the file so that it can be closed or terminated.
There are a few different ways to check which process is using a file. One way is to use the lsof command. lsof is a command-line utility that lists all open files and the processes that are using them. To use lsof, simply open a terminal window and type the following command: