how to replace a file and save it i

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how to replace a file and save it i

Original Message

Name: arun.s
Date: November 16, 2005 at 03:13:35 Pacific
Subject: how to replace a file and save it i
OS: unix
CPU/Ram: 255

Comment:

Hi guys
this my sample file sample.ksh
DBUID=testdatabase
DBLOC=wm4r2
i want replace DBUID=testdatabase by DBUID=$myvariable (i.e myvariable=arundatabase). the name testdabase is not fixed and it changes from time to time. so my search criteria is DBUID. after replacing the line i need to save it in same file
thus finally i want my sample.ksh file as
DBUID=arundatabase
DBLOC=wms4r2
this is how i want u to help u.. read the line from a file and replace it from mychoice data and save it back to the same file without altering the other contents.
i m looking forward to your help.. get me the solution as soon as possible
thanks
Arun

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Response Number 1

Name: koala95
Date: November 16, 2005 at 04:31:19 Pacific

Reply: (edit)

#/bin/ksh
myvariable=arundatabase
sed "s/DBUID=.*/DBUID=$myvariable/" sample.ksh >/tmp/sample.ksh
mv /tmp/sample.ksh .
it's ok.

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