Manipulate string in shell script


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Manipulate string in shell script
# 1  
Old 04-17-2011
Manipulate string in shell script

I am writing a shell script for some purpose. I have a variable of the form -- var1 = "policy=set policy"

Now I need to manipulate the variable var to get the string after index =. that is i should have "set polcy". Also I need to to this for many other variables where the value of "=" is not constant. Like

var2 = "bgroup = set bgroup port"
var3 = "utm = set security utm"
Please give an idea how to do it.
# 2  
Old 04-17-2011
You can use the cut command for this

Code:
var1="policy=set policy"
var1value=`echo $var1 | cut -d"=" -f2`

Note : There should not be any space between the shell variable and it assignment value.

var1 = something => incorrect
var1=something => correct

regards,
Ahamed

Last edited by ahamed101; 04-17-2011 at 04:34 AM.. Reason: code tags
# 3  
Old 04-17-2011
Hi

Could you elaborate what exactly you need.
# 4  
Old 04-17-2011
#!/bin/bash
#
bash code:
  1. #!/bin/bash
  2. var2="bgroup = set bgroup port"
  3. var3="utm = set security utm"
  4. echo "$var2 --> '${var2# = }'"
  5. echo "$var3 --> '${var3# = }'"
  6. # You can also
  7. for V in var2 var3; do
  8.     echo "${!V} --> '${!V# = }'"
  9. done#
This User Gave Thanks to frans For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to manipulate string in line?

Hello, I looked up on google but do not know from which point to start... I am under ubuntu 18 bionic and Mainfile consists of 25K lines MainFile: Test,AAEE9FED3, GGBBDD DD AA X2d Moscow 112233445566aaBBccPPdddEE Test,AAEE9FED3, GG33DD s00022 Leningrad 11298932566aaBBccPPdddEE... (8 Replies)
Discussion started by: baris35
8 Replies

2. Shell Programming and Scripting

Need help to manipulate data using script

Hi i want to manipulate my data to convert row to column name 600 Slno vlan 1 600 2 609 3 700 name 700 Slno vlan 1 600 2 609 3 700 (8 Replies)
Discussion started by: nith_anandan
8 Replies

3. Shell Programming and Scripting

Manipulate XML File Continous STRING by each Order Line using SHELL

heres sample File: <?xml version="1.0"?> <!DOCTYPE cXML SYSTEM "www"><cXML.............................................. <OrderRequest>USE UNIX.com</Extrinsic><Extrinsic name="UniqueName">Peter@UNIX.com</Extrinsic><Extrinsic name="ContractingEntity">UNIX... (3 Replies)
Discussion started by: Pete.kriya
3 Replies

4. UNIX for Advanced & Expert Users

Shell script to manipulate files

My requirement is explained below: list of files available in server 1 in path /home/xxx/src are: XX_SRC_20130417.txt XX_SRC_20130417.dat $cat XX_SRC_20130417.txt col1=ABC col2= col3=xyza sequence file name is maintained which is in the path /ab_app/xx/seq $cd /ab_app/xx/seq$cat... (0 Replies)
Discussion started by: vedanta
0 Replies

5. Shell Programming and Scripting

Find string in one file and manipulate other

hi, I have 2 files delimited by "|" File 1: 1|28|ABC|11|9620034||XXX555| 29|22|ABC|11|9620258||XXX555| 51|26|ABC|11|9620314||XXX555| 77|20|ABC|11|9630506||XXX555| 97|36|ABC|11|9630562||XXX555| File 2: 9620028|I 9620034|I 9620314|S 9620332|I 9620258|I 9630506|S 9630562|S (3 Replies)
Discussion started by: pparthiv
3 Replies

6. UNIX for Dummies Questions & Answers

Comparing a String variable with a string literal in a Debian shell script

Hi All, I am trying to to compare a string variable with a string literal inside a loop but keep getting the ./testifstructure.sh: line 6: #!/bin/sh BOOK_LIST="BOOK1 BOOK2" for BOOK in ${BOOK_LIST} do if then echo '1' else echo '2' fi done Please use next... (1 Reply)
Discussion started by: daveu7
1 Replies

7. Shell Programming and Scripting

Script to manipulate contents of clipboard

Hi there, I'm a total newbie and would like some help. I'd like to have a script to - load the contents of the clipboard into a variable - manipulate the variable by adding the characters /* to the beginning of every line and */ to the end of every line - load the variable back into the... (3 Replies)
Discussion started by: js8765
3 Replies

8. Shell Programming and Scripting

Shell script to manipulate a file

Hello, I have a file with following contents : WSL SRVGRP=LISTENER SRVID=2 CLOPT="-A -t -- -n 0x0002aa050a03cc65 " RQPERM=0660 REPLYQ=Y RPPERM=0660 MIN=1 MAX=1 CONV=N I need to print only the value in Hex i.e.... (2 Replies)
Discussion started by: deo_kaustubh
2 Replies

9. Shell Programming and Scripting

Script to manipulate logfile text

Hi guys, I was wandering if a Shell guru could give me some advice on tackling a problem. I have used a mixture of grep, cut and awk to get data from a log file in the following format: 14/11/08 10:39: Checking currenly : Enabled 14/11/08 10:39: Records allocated : 221... (11 Replies)
Discussion started by: rosspaddock
11 Replies

10. Shell Programming and Scripting

Shell script to manipulate a message count for the same IP @ diff session

I have a file as like below, 10:20:30.45 START 10.20.30.40 10:20:31.46 HELLO 10.20.30.40 10:20:32.46 START 10.20.30.41 10:20:33.44 END 10.20.30.40 10:20:35.44 HELLO 10.20.30.41 10:20:36.56 HELLO 10.20.30.41 10:20:37.78 HELLO 10.20.30.41 10:20:38.99 START 10.20.30.40... (1 Reply)
Discussion started by: gobinath
1 Replies
Login or Register to Ask a Question