The PATH is an essential environment variable in Linux and Unix-like systems. It defines the directories where the shell looks for executable files when you type commands (like ping, useradd, and others). Sometimes, you might need to modify the PATH to include custom directories or tools. The method to do this depends on the shell you’re using, whether it’s bash, zsh, or ksh. This article will guide you on how to set the PATH in each of these popular shells.
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