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Occasionally some stupid things come to mind. This is one of them. Suppose we read a shell variable like this: Code: $ read a 12 $ echo $a 12 How ...
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  1. 01-01-2008 #1
    kdev981
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    Question Removing a shell variable

    Occasionally some stupid things come to mind. This is one of them.
    Suppose we read a shell variable like this:

    Code:
    $ read a
12
$ echo $a
12
    How can I delete this variable "a" now, without logging out or rebooting?

    Thanks in advance.
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  2. 01-01-2008 #2
    scm
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    "unset a" will get rid of it. Alternatively, "a=" will empty it so to all intents and purposes it's gone.
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  3. 01-02-2008 #3
    kdev981
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    Thanks a lot!!
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