Operating systems use environment variables that define certain settings useful for running the operating system itself, and for managing the execution of installed programs. The 'PATH' variable is one of them, and is used constantly even if the end user is not aware of it. This variable stores a list of directories where applications (most commonly the 'Shell') will be able to identify the program to run for a given command.
Steps
Change the Path Variable in Linux Step 1
Step 1. Locate the current contents of the 'path' variable using the following 'echo $ PATH' command (without quotes) within the 'bash' shell
A directory listing should appear as in the example given below:
uzair @ linux: ~ $ echo $ PATH / home / uzair / bin: / usr / local / sbin: / usr / local / bin: / usr / bin: / bin: / usr / games
Note: Linux uses the ':' separator to separate directories stored in the '$ PATH' variable.
Change the Path Variable in Linux Step 2
Step 2. Temporarily add the following directories to the current path variable:
': / sbin', ': / usr / sbin'. To do this use the following command from the 'bash' shell:
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