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RedHat 9 (Linux i386) - man page for unset (redhat section n)

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unset(n)			      Tcl Built-In Commands				 unset(n)


       unset - Delete variables

       unset name ?name name ...?

       This  command  removes  one or more variables.  Each name is a variable name, specified in
       any of the ways acceptable to the set command.  If a name refers to an element of an array
       then  that element is removed without affecting the rest of the array.  If a name consists
       of an array name with no parenthesized index, then the entire array is deleted.	The unset
       command	returns  an  empty  string  as	result.   An error occurs if any of the variables
       doesn't exist, and any variables after the non-existent one are not deleted.

       remove, variable

Tcl											 unset(n)
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