topic deleting a particular line in a file in Operating System - Linux

deleting a particular line in a file

Henry Chua — Wed, 31 Aug 2005 06:39:19 GMT

Hi Guys,

I am writing a script to remove a particular line in a file but it doesnt seem to work:

#!/bin/ksh

dline=`echo "henry_25"`
jfile=`echo "list"`

echo "jfile = $jfile"
echo "dline = $dline"

sed '/\$dline/d' $jfile > file
~

It appears that my identifier are not recognisable.. but if i need these identifier how can i alter the 'sed' command to achieve this? ThankS

regards
Henry

Re: deleting a particular line in a file

Victor BERRIDGE — Wed, 31 Aug 2005 06:43:01 GMT

Hi Henry,

Woulnd a cat | grep -v "argument" >newfile do the job?

All the best
Victor

Re: deleting a particular line in a file

Victor Fridyev — Wed, 31 Aug 2005 06:45:16 GMT

Hi,

In this case you have to use " (double quote) instead of ' (single quote)

sed "/$dline/d" $jfile > file

HTH

Re: deleting a particular line in a file

Henry Chua — Wed, 31 Aug 2005 06:48:51 GMT

Victor suggestion is the answer i need! thank!!!