my problem is i want to replace a line in a file

e.g
i want to replace the line
DBUID= (some name)
with
DBUID=$user variable

file name is sample.ksh
DBUID=aruns010

please help me in solving this problem. i want to replace the entire line by using DBUID as the search parameter.i dont know the characters after DBUID=....?

help me out as soon as possible

thanks

It's kludgy, but if the line begins with DBUID, this [n]awk script replaces the entire line with variable $DBUID:

#!/bin/ksh

user=dave
DBUID="DBUID=$user"

# Solaris uses nawk, you might need awk
nawk ' {
if(/^DBUID/)
$0=v1

print
} ' v1="$DBUID" sample.ksh

Or how about

sed "s/\(^DBUID=\)\(..*$\)/\1${yourvar}" test.dat

William:

I tried running your sed script above and I'm getting a garbled command error. I tried it on Solaris 7 and Red Hat Linux 7.1

Regards,

Nails

hi Nails:

give me some other solution man.. its too urgent

thanks
Arun

Arun:

I don't have another solution. What's wrong with the awk solution I gave you?

hi nails

its ok man.. i got the solution for the problem. thanks for the help..

thanks
Arun

Apologies, lost a trailing slash somehow. This works for me:

sed "s/\(^DBUID=\)\(..*$\)/\1${yourvar}/" test.dat