What is the difference between a shell variable that is
exported and the one that is not exported?
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Answer Posted / seshadri sethi
The Shell variable which is exported would available to all
the programs outside the Shell also. And the shell variable
which is not exported, would available for that shell or for
the shell program only, in which the variable is declared.
Export LANG=C
will make the variable LANG the global variable, put it into
the global environment. All other processes can use it.
LANG=C
will change the value only in the current script.
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