sed issue

[venhart]

hi,

i have a file and within the file i have some text. I need to remove the following characters from the file. See my example below :

cat file1.dat
Initialize.txt R1_P1000_ABCD_CAL_20101231_Config1C.tar

and I would require the file to look like this (like to remove .tar) :

cat file1.dat
Initialize.txt R1_P1000_ABCD_CAL_20101231_Config1C

How can I do this using the SED command ?

thank you

[Irithori]

sed 's/\.tar//g' file1.dat

This will remove all ".tar".
If the result is to your liking, add -i to the sed call and file1.dat will be changed in place.

[venhart]

That has worked ok, but if I add a tar command to the file1.dat, see below :

cat file1.dat
tar xvf R1_P1000_ABCD_CAL_20101231_Config1C.tar
Initialize.txt R1_P1000_ABCD_CAL_20101231_Config1C.tar

and I ran the sed command :

sed 's/\.tar//g' file1.dat

This removes the .tar from the 1st line, but I need to keep this line as the same.
Only the second line needs the .tar removed.

Please could you advise the best way for this.

thank you

[Irithori]

To continue the way

sed '2s/\(Initialize\.txt.*\)\.tar/\1/' file1.dat

But since you ask for the best way..
The sed approach seems like fixing after the fact.

Maybe that file1.dat can be created correctly in the first place?
How is it generated?

[venhart]

thank you, I am now using your example within my script that i have created - see below :

#!/bin/sh
#set -x
################################################## ##############################
#
# Copyright ABC plc 2011
#
# Name: Verify_Install.sh
#
# Version: V0.1
# Date: 12-10-11
#
# Purpose: Verify Install Process
#
################################################## ##############################

#############################################
# Start Verify Intall Processes #
#############################################

Verify_Install()
{
SCRIPTS_DIR=$HOME/Control_Management/scripts
BUILD_DIR=$RELEASE/$CURRENT_CONFIG/Config
PROCESS_DIR=$RELEASE/Scripts/Batch
PACKAGE_CONFIG1C_DIR=$OPS/Project/Release1/Config1C/Dynamic

cd $PACKAGE_CONFIG1C_DIR

tar xvf R1_P1000_ABCD_CAL_20101231_Config1C.tar

cd $PROCESS_DIR
echo "Jobstream Verify_Install Started"
echo " "

./Initialize.ksh R1_P1000_ABCD_CAL_20101231_Config1C.tar 20101231

echo " "
echo "Jobstream Verify_Install completed"
}

now when i use your example, this still keeps the same format for both lines in my script.

The line - tar xvf R1_P1000_ABCD_CAL_20101231_Config1C.tar needs to stay the same

and the following line - ./Initialize.ksh R1_P1000_ABCD_CAL_20101231_Config1C.tar 20101231
needs the .tar removed from this line only.

kind regards