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RE: [OT]Bash Script help


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: [OT]Bash Script help
  • From: "Dean Smith" <ukha@xxxxxxx>
  • Date: Thu, 5 Jun 2003 23:10:17 +0100
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Thanks Ant

it was as you point out the > and not -gt

Now working just fine !

(aswell as the %2 not $2 - but then I'm showing my Dos colours there!)
Dean

-----Original Message-----
From: Ant [mailto:ant@xxxxxxx]
Sent: 05 June 2003 21:17
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] [OT]Bash Script help


On Thursday 05 June 2003 21:09, Dean Smith wrote:

> if [ "$VAL" > "%2" ]; then

It's doing a string (lexical) comparison, which isn't what you wanted.
You want to use the arithmetic operators (-lt, -gt, -le, -ge, -eq, -ne) and
the $((...)) construct to evaluate your variables as arithmetics. Try
something like this:

#!/bin/bash

val=42;
limit1=50;
limit2=13;

if [ $(($val)) -gt $(($limit1)) ]; then
echo "hurrah!";
else echo "arse!";
fi

if [ $(($val)) -gt $(($limit2)) ]; then
echo "hurrah!";
else echo "arse!";
fi

HTH

ant
--
/\/\
www.ant.org  ('')  www.ant.org
()
Megawatt Winged Avenger



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