PATH Environment Variable | Life saver for Linux Administrators. PATH Environment Variable | Life saver for Linux Administrators. How $PATH will help to execute Linux commands on Linux machine. If PATH variable is not configured properly then you have to each and every command using there exact path like /bin/commandname other wise command will not execute. Because of PATH variable commands will work if you execute without full path also. PATH variable will search whatever the command you executed in the terminal in all the specified paths. It's very important for Shell scripting.
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