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What can you tell about shell variables? |
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Answer» The shell has a few sets of predefined internal variables with the support of creating new ones as well. Some of these are environment variables whereas others are local variables. These can be accessed by different PROCESSES. The name of a variable can contain only letters(A-z), numbers(0-9), or the UNDERSCORE CHARACTER ( _). NAME="SUMIT Roy"$ ECHO $NAME$ unset NAME |
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