Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Replacing specific entry using sed
Top Forums Shell Programming and Scripting Replacing specific entry using sed Post 302755105 by spacebar on Friday 11th of January 2013 09:22:32 PM
Old 01-11-2013
The example below will allow you to change the "BookAuthor" to the "NewBookAuthor" based on the Book Title:
Code:
$ cat Books.txt
Philosopher's Stone:J.K. Rowling
Chamber of Secrets:J.K. Rowling
Prisoner of Azkaban:J.K. Rowling

$ BookTitle="Chamber of Secrets"

$ NewBookAuthor=Candace

$ sed "s/\($BookTitle:\)\(.*\)$/\1$NewBookAuthor/g" Books.txt
Philosopher's Stone:J.K. Rowling
Chamber of Secrets:Candace
Prisoner of Azkaban:J.K. Rowling

This User Gave Thanks to spacebar For This Post:
todaealas
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

replacing specific lines in a file

Hi there I have a file which has the lines # Serial number for hostid EXP_SERIAL_="" These lines could be anywhere in the file as far as line numbers go, I would like replace these two lines with # Serial number for hostid $var1 EXP_SERIAL_$var1="$var2" Is there a quick and simple... (6 Replies)
Discussion started by: hcclnoodles
6 Replies

2. Shell Programming and Scripting

SED Replacing all but one regex match on a line or specific matches

Hi, I'm attempting to rename some files that have spaces in them. Without linking sed commands together is it possible to replace the first three "." to " ". File.name.is.long.ext -> File name is long.ext I can get the desired effect with echo "File.name.is.long.ext" | sed 's/\./ /g;s/... (5 Replies)
Discussion started by: vectox
5 Replies

3. Shell Programming and Scripting

sed replacing specific characters and control characters by escaping

sed -e "s// /g" old.txt > new.txt While I do know some control characters need to be escaped, can normal characters also be escaped and still work the same way? Basically I do not know all control characters that have a special meaning, for example, ?, ., % have a meaning and have to be escaped... (11 Replies)
Discussion started by: ijustneeda
11 Replies

4. Shell Programming and Scripting

Summing over specific lines and replacing the lines with the sum using sed, awk

Hi friends, This is sed & awk type question. I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example ###start of input text file #### abc def ghi 1 2 3 4 kjld random... (3 Replies)
Discussion started by: kaaliakahn
3 Replies

5. Shell Programming and Scripting

Notification of the modification of a specific entry in a file

I need to get notification via email when the line containing a pattern is changed in a file. Not during the time any changes to file occurs. Ie if we reset a user password say example, demouser the hash in the line containing the word demouser in the file /etc/group changes. So when this change... (1 Reply)
Discussion started by: anil510
1 Replies

6. Shell Programming and Scripting

how to change specific value for a entry in the file

Hello All, can someone please suggest me a one line command to change a specific value that is associated to an entry in the file. for example #more schedulefile quartz.job.manual.bonus.schedule=0 0 9 ? * * # it should be changed to #more schedulefile... (5 Replies)
Discussion started by: bobby320
5 Replies

7. Shell Programming and Scripting

Replacing specific characters using sed

Hi, I have a text file which is output from a server and it lists all the files in a specific volume. However, the volume name appears as volume_name:. I would like to replace this with \\volume_name\volume_name. This is not a problem in itself as I can use sed to globally look for the... (8 Replies)
Discussion started by: vnayak
8 Replies

8. UNIX for Dummies Questions & Answers

Check for entry of specific pattern

Hey Guys and Gals, I am having trouble with what I thought shouldn't be hard.. In a script I am working on there is a need to enter a MAC address. MAC addresses are formatted ; XX:XX:XX:XX:XX:XX where X can be 0-9, a-f or A-F So in the sample script the query is something... (4 Replies)
Discussion started by: TAPE
4 Replies

9. Programming

PYTHON COPY Contents of file1 into a specific entry in file2

file1 cat dog fish file2 This is a bunch of lines <!-- INSERT ANIMALS HERE --> horse cheetah post results file2 This is a bunch of lines <!-- INSERT ANIMALS HERE --> cat dog fish horse (1 Reply)
Discussion started by: TY718
1 Replies

10. Shell Programming and Scripting

How to replace multiple "&nbsp;" entry with in <td> tag into single entry using sed?

I have the input file like this. Input file: 12.txt 1) There are one or more than one <tr> tags in same line. 2) Some tr tags may have one <td> or more tna one <td> tags within it. 3) Few <td> tags having "<td> &nbsp; </td>". Few having more than one "&nbsp;" entry in it. <tr> some td... (4 Replies)
Discussion started by: thomasraj87
4 Replies

LEARN ABOUT DEBIAN

actdiag

ACTDIAG(1)						      General Commands Manual							ACTDIAG(1)

NAME

       actdiag - generate activity-diagram image file from spec-text file.

SYNOPSIS

       actdiag [options] files

DESCRIPTION

       This manual page documents briefly the actdiag commands.

       actdiag is a program that generate activity-diagram image file from spec-text file.

OPTIONS

       These  programs	follow	the  usual  GNU  command  line	syntax, with long options starting with two dashes (`-').  A summary of options is
       included below.	For a complete description, see the Info files.

       -h, --help
	      show this help message and exit

       -a, --antialias
	      Pass diagram image to anti-alias filter

       -c FILE, --config=FILE
	      read configurations from FILE

       -o FILE
	      write diagram to FILE

       -f FONT, --font=FONT
	      use FONT to draw diagram

       -s, ----separate
	      Separate diagram images for each group (SVG only)

       -T TYPE
	      Output diagram as TYPE format

SEE ALSO

       The programs are documented fully by
       http://tk0miya.bitbucket.org/actdiag/build/html/index.html

AUTHOR

       actdiag was written by Takeshi Komiya <i.tkomiya@gmail.com>

       This manual page was written by Kouhei Maeda <mkouhei@palmtb.net>, for the Debian project (and may be used by others).

								   June  5, 2011							ACTDIAG(1)
All times are GMT -4. The time now is 11:36 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy