How To Set $PATH Variable in Linux

How To Set $PATH Variable in Linux: "When you type a command at the shell prompt, it has to be read off disk out of one or other directory. On Linux all such executable commands are located in one of the directories. A file is located in the directory tree according to its type, and not according to what software package it belongs to. Hence, for example, a word processor may have its actual executable stored in a directory with all


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