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Date: Mon, 23 Dec 2002 01:12:22 +0100
From: Roman Neuhauser <neuhauser@bellavista.cz>
To: BSD Freak <bsd-freak@mbox.com.au>
Cc: FreeBSD Questions <freebsd-questions@FreeBSD.ORG>
Subject: Re: Padding expr output
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# bsd-freak@mbox.com.au / 2002-12-23 10:57:19 +1100:
> Hi all,
> 
> I am usiung expr in a shell script and need to pad it's output to 
> always be 3 characters. An example will explain thing better:
> 
> % expr 007 + 1
> Output is 8
> 
> I need the output to be 008

    printf(8)

    zero-padded integer and octal, respectively:
    roman@freepuppy ~ 1029:0 > printf "%03d\n" $(expr 8 + 1)       
    009
    roman@freepuppy ~ 1030:0 > printf "%#o\n" $(expr 8 + 1)           
    011
    roman@freepuppy ~ 1031:0 >  

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