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Which of these is NOT an standard environment variable in Linux?
TERM
ROOT
HOME
EDITOR
Environment variables provide a way to influence the behaviour of software on the system. For example, the "LANG" environment variable determines the language in which software programs communicate with the user. Environment variables consist of names that have values assigned to them. For example, on a typical system in the US we would have the value "en_US.UTF-8" assigned to the "LANG" variable. The meaning of an environment variable and the format of its value are determined by the application using it. There are quite a few well-known environment variables for which the meaning and the format have been agreed upon and they are used by many applications))))))I know some useful environment-variables like $HOME, $UID, $BASH, $LOGNAME etc. which is useful to get information in terminal/command-line with using
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