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Struck with Typeset Command

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# 1  
Old 06-13-2011
Struck with Typeset Command
Can someone explain whats this below command will do exactly..

typeset tmpFile1 tmpDir1 rc fileName fullName bc

typeset tmpFile1 tmpFile2 rc fileSuffix uef
typeset origFile bc fullName tmpDir1 remoteCmd inFile newInFile
typeset num fn curDate fileSuffix ucFileName

Since i'm new to scripting, i'm struck with this
# 2  
Old 06-13-2011
That form of typeset is used to declare local variables inside a function. Like this
Code:
$
$ cat ts
#! /bin/ksh

function one
{
        typeset xyz
        xyz=12
        echo in function one xyz = $xyz
}

xyz=1
echo in main xyz = $xyz
one
echo in main xyz still = $xyz
exit 0
$
$ ./ts
in main xyz = 1
in function one xyz = 12
in main xyz still = 1
$

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