Re: how to check the length of a variable in ksh?

From: Clifton, Pablo (Pablo.Clifton@BCBSFL.COM)
Date: Thu Nov 21 2002 - 14:28:44 EST

Thanks to ALL for the help- I'd been stumped for about a week and
I thought I was going to have to write a C program :)

-pablo 

--
Pablo Clifton
UNIX Tech Services
-----Original Message-----
From: cbaker@GOODYEAR.COM [mailto:cbaker@GOODYEAR.COM]
Sent: Thursday, November 21, 2002 1:53 PM
To: aix-l@Princeton.EDU
Subject: Re: how to check the length of a variable in ksh?
Bill,
Your answer is pretty good, and is the way I used, but:
1) You need to put double quotes about the $i
     if (( $(expr "$i" : ".*") > 5 ))
because the variable could contain imbedded spaces, null, etc.
2)After seeing Craig's solution, (one that I never knew about)
     if (( ${#variable} > 5 ))
I think I like that even better.
Christopher M. Baker
Senior Technical Support Analyst
DSE/TCO
Goodyear Tire and Rubber Company
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                    Bill Thompson
                    <bill.thompson@GOO        To:     aix-l@Princeton.EDU
                    DYEAR.COM>                cc:
                    Sent by: IBM AIX          Subject:     Re: how to check
the length of a variable in ksh?
                    Discussion List
                    <aix-l@Princeton.E
                    DU>
                    11/21/2002 12:50
                    PM
                    Please respond to
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                    List
if (( $(expr $i : ".*") > 5 ))
then
        do something
fi
Bill Thompson
Sr UNIX Systems Administrator
The Goodyear Tire & Rubber Co.
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May Not Be Copied or Disseminated Without Express Consent of The Goodyear
Tire & Rubber Company.
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----- Original Message -----
From: "Clifton, Pablo" <Pablo.Clifton@BCBSFL.COM>
Newsgroups: bit.listserv.aix-l
To: <aix-l@Princeton.EDU>
Sent: Thursday, November 21, 2002 12:01 PM
Subject: how to check the length of a variable in ksh?
> Hi-
>
> Anyone know how I can check in a korn shell script:
>
>         if [[    length of variable $i is > 5 characters        ]]
>         then
>                 do something
>         fi
>
> thanks,
> -pablo
>
> --
> Pablo Clifton
> UNIX Tech Services
>
>
>
>
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