Sponsored Content
Top Forums Shell Programming and Scripting Replace string in file with a variable value Post 302524563 by mirni on Monday 23rd of May 2011 10:36:03 PM
Old 05-23-2011
Like this?
Code:
oldDate=30-jan-2011
newDate=31-dec-2011
sed 's/'$oldDate'/'$newDate'/' myFile

Since there are no metacharacters in your strings, you could do even simpler:
Code:
sed "s/$oldDate/$newDate/" myFile

This User Gave Thanks to mirni For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Replace string in a file w/ a variable value

I am trying to replace the default home page for several mac user accounts, I wrote a script that will hunt the files down and replace them with a pre-configured set. The problem I am having is that the download destination path for the browser is hard coded into a .plist (text config file) file... (5 Replies)
Discussion started by: tret
5 Replies

2. Shell Programming and Scripting

Using sed to replace a string in file with a string in a variable that contains spaces

Hi, i call my shell like: my_shell "my project name" my script: #!/bin/bash -vx projectname=$1 sed s/'PROJECT_NAME ='/'PROJECT_NAME = '$projectname/ <test_config_doxy >temp cp temp test_config_doxy the following error occurres: sed s/'PROJECT_NAME ... (2 Replies)
Discussion started by: vivelafete
2 Replies

3. AIX

Replace string with asterisk(*) in variable

I was trying to replace a string ( for eg - @@asterisk@@ to * ) in variable using cat $INFILE | while read LINE do stmt1=`echo $LINE | sed 's/@@asterisk@@/\*/g'` stmt=$stmt' '$stmt1 stmt2=`echo $LINE` STATEMENT=$STATEMENT' '$stmt2 done echo 'Statement with sed -- > '... (5 Replies)
Discussion started by: Vaddadi
5 Replies

4. Shell Programming and Scripting

Find and replace string from file which contains variable and path - SH

e.g. /home/$USER/.config replace it with "" (empty) Is this possible? I think you should play a bit with sharps ## and sed:b: (2 Replies)
Discussion started by: hakermania
2 Replies

5. Shell Programming and Scripting

replace (sed?) a string in file with multiple lines (string) from variable

Can someone tell me how I can do this? e.g: a=$(echo -e wert trewt ertert ertert ertert erttert erterte rterter tertertert ert) How do i replace the STRING with $a? I try this: sed -i 's/STRING/'"$a"'/g' filename.ext but this don' t work (2 Replies)
Discussion started by: jforce
2 Replies

6. Shell Programming and Scripting

How to replace a string with a variable in a file using sed?

I have a file having some text like: PATH_ABC=/user/myLocation I have to replace "/user/myLocation" with a session variable say, $REPLACE_PATH, where $REPLACE_PATH=/user/myReplaceLocation The following sed command is not working. It is writing PATH_ABC=$REPLACE_PATH in the file ... (2 Replies)
Discussion started by: SKhan
2 Replies

7. UNIX for Dummies Questions & Answers

Replace variable string with text

Hi All, Hoping someone can help.... I am trying to work out how I can ammend a log file to remove variable strings in order to remove confidential information which I cant pass on. As an example I have used phone numbers. A large log file contains multiple lines containing something like the... (6 Replies)
Discussion started by: mutley2202
6 Replies

8. UNIX for Beginners Questions & Answers

Views How to replace a CRLF char from a variable length file in the middle of a string in UNIX?

My sample file is variable length, with out any field delimiters. It has min of 18 chars length and the 'CRLF' is potentially between 12-14 chars. How do I replace this with a space? I still want to keep end of record, but just want to remove these new lines chars in the middle of the data. ... (7 Replies)
Discussion started by: chandrath
7 Replies

9. Shell Programming and Scripting

Replace substring from a string variable

Hi, Wish to remove "DR-" from the string variable (var). var="DR-SERVER1" var=`echo $var | sed -e 's/DR-//g'` echo "$var" Expected Output: However, I get the below error: Can you please suggest. (4 Replies)
Discussion started by: mohtashims
4 Replies

10. Shell Programming and Scripting

How to replace string in variable?

Hello, I have simple while and for loops in a shell script and I would like to replace some characters in COL2 when I run it. I am on ubuntu 14.04 while read COL1 COL2 COL3 COL4 do name=$COL2 #cat $name | sed -i "s|_| |g" $name for i in $COL3 $COL4 do some codes ...... run $i b="$name"... (11 Replies)
Discussion started by: baris35
11 Replies
SHTOOL-SUBST.TMP(1)					      GNU Portable Shell Tool					       SHTOOL-SUBST.TMP(1)

NAME
shtool-subst - GNU shtool sed(1) substitution operations SYNOPSIS
shtool subst [-v|--verbose] [-t|--trace] [-n|--nop] [-w|--warning] [-q|--quiet] [-s|--stealth] [-i|--interactive] [-b|--backup ext] [-e|--exec cmd] [-f|--file cmd-file] [file] [file ...] DESCRIPTION
This command applies one or more sed(1) substitution operations to stdin or any number of files. OPTIONS
The following command line options are available. -v, --verbose Display some processing information. -t, --trace Enable the output of the essential shell commands which are executed. -n, --nop No operation mode. Actual execution of the essential shell commands which would be executed is suppressed. -w, --warning Show warning on substitution operation resulting in no content change on every file. The default is to show a warning on substitution operations resulted in no content change on all files. -q, --quiet Suppress warning on substitution operation resulting in no content change. -s, --stealth Stealth operation. Preserve timestamp on file. -i, --interactive Enter interactive mode where the user has to approve each operation. -b, --backup ext Preserve backup of original file using file name extension ext. Default is to overwrite the original file. -e, --exec cmd Specify sed(1) command directly. -f, --file cmd-file Read sed(1) command from file. EXAMPLE
# shell script shtool subst -i -e 's;(c) ([0-9]*)-2000;(c) 1-2001;' *.[ch] # RPM spec-file %install shtool subst -v -n -e 's;^(prefix=).*;1 $RPM_BUILD_ROOT%{_prefix};g' -e 's;^(sysconfdir=).*;1 $RPM_BUILD_ROOT%{_prefix}/etc;g' `find . -name Makefile -print` make install HISTORY
The GNU shtool subst command was originally written by Ralf S. Engelschall <rse@engelschall.com> in 2001 for GNU shtool. It was prompted by the need to have a uniform and convenient patching frontend to sed(1) operations in the OpenPKG package specifications. SEE ALSO
shtool(1), sed(1). 18-Jul-2008 shtool 2.0.8 SHTOOL-SUBST.TMP(1)
All times are GMT -4. The time now is 01:31 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy