Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Finding a text in files & replacing it with unique strings
Top Forums Shell Programming and Scripting Finding a text in files & replacing it with unique strings Post 302761529 by Don Cragun on Friday 25th of January 2013 09:09:20 PM
Old 01-25-2013
How, exactly, do your current scripts fail? What diagnostic messages are being written? What output are you getting and what output do you want? Please also give us sample input files (and all of the desired outputs corresponding to those sample input files).

Does the 2nd field in file.csv contain fixed strings or regular expressions?
With your current scripts, it looks like you intentionally have leading spaces in file.csv that are not part of the file names and you have trailing spaces on some lines that you don't want to appear in the replacement strings. Is there some reason why you have leading and trailing spaces in file.csv?

Would you prefer to perform all of these actions in a single awk script instead of calling cut three times per file processed and sed once per file processed?
 

10 More Discussions You Might Find Interesting

1. Solaris

finding & replacing blank rows/spaces in a file

Can anyone help me find and replace blank rows in a file with a numeric value (ie blankrow=someTxtOrNumValue), the file is over 500,000 rows long so it would need to be the quickest way as I'll need to do this for multiple files...I would be greatfull for any suggestions....thanks sample file:... (2 Replies)
Discussion started by: Gerry405
2 Replies

2. Shell Programming and Scripting

replacing strings with text from other file

Hi, Im trying to update some properties files with text from another file: file1 user=xyz file2 user= after script file2 user=xyz Im using this reading the $QUARTZURL,ETC... from quartz.properties: echo... (1 Reply)
Discussion started by: mc1392
1 Replies

3. Shell Programming and Scripting

help with finding & replacing pattern in a file

Hi everyone. Could u be so kind and help me with on "simple" shell script? 1. i need to search a file line by line for a pattern. example of a lines in that file 2947 domain = feD,id = 00 0A 02 48 17 1E 1D 39 DE 00 0E 00,Name Values:snNo = f10 Add AttFlag = 0 2. i need to find... (0 Replies)
Discussion started by: dusoo
0 Replies

4. UNIX for Dummies Questions & Answers

Finding & Replacing specific Fields

All I have a very large file (aproximately 150,000) as shown below separated by pipe "|". I need to replace data in 2, 16, 17, 23 fields that are of time stamp format. My goal is to look in those fields and it ends with "000000|" then replace it with "000|". In other words, make it as 6 digit... (2 Replies)
Discussion started by: ddraj2015
2 Replies

5. UNIX for Dummies Questions & Answers

Finding Unique strings which match pattern

I need to grep for a pattern in a file. Files are huge and have several repeated occurances of the strings which match pattern. I just need the strings which contain the pattern in the output. For eg. The contents of my file are as follows. The pattern I want to match by is ABCD ... (5 Replies)
Discussion started by: tektips
5 Replies

6. Homework & Coursework Questions

Finding/replacing text and redirection help

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: What command would rename "sequentialInsert", in ~cs252/Assignments/commandsAsst/project/arrayops.h, to... (2 Replies)
Discussion started by: lothwen
2 Replies

7. Shell Programming and Scripting

Replacing variable Text between fixed strings

Hello all, This is my first post and I hope you can help me out. I searched for quite some hours now and haven't found a simple solution to my problem. It is as following: I got this file: dl.dropbox.com/u/14586156/stuff/Bookmarks.plist and want to replace the Text between... (9 Replies)
Discussion started by: pasc
9 Replies

8. Shell Programming and Scripting

Extended replacing of nonspecific strings in text files [beware complicated !]

Well, to make another post at this helpful forum :b::D: I recently tried something like this, I want to replace all those numberings/letters that are located between <string>file://localhost/var/mobile/Applications/ and /Documents/</string> numberings =---- replace with: first... (6 Replies)
Discussion started by: pasc
6 Replies

9. Shell Programming and Scripting

Finding/replacing strings in some files based on a file

Hi, We have a file (e.g. a .csv file, but could be any other format), with 2 columns: the old value and the new value. We need to modify all the files within the current directory (including subdirectories), so find and replace the contents found in the first column within the file, with the... (9 Replies)
Discussion started by: Talkabout
9 Replies

10. Shell Programming and Scripting

Command to show unique strings in two files

how to display the unique strings in two files using shell script or commands. I tried diff and cmp but it shows the entire line, i need only the mismatched strings. File1: sat,sun,mon,tue rose,lilly,lotus white,red,blue,green,pink File2: sat,sun,mon,tue rose,sunflower,lotus... (4 Replies)
Discussion started by: Arun_Linux
4 Replies

LEARN ABOUT DEBIAN

rpl

RPL(1)							    BSD General Commands Manual 						    RPL(1)

NAME

     rpl -- replace strings in files

SYNOPSIS

     rpl [-LhiwbqvsRepfdt] [-xSUFFIX] <old_string> <new_string> <target_file ...>

DESCRIPTION

     Basic usage is to specify two strings and one or more filenames or directories on the command line.  The first string is the string to
     replace, and the second string is the replacement string.

     -h, --help
	     A short help text.

     -L, --license
	     Show the license and exit.

     -xSUFFIX
	     Search only files ending with SUFFIX, e.g.  ``.txt''.  May be specified multiple times.

     -i, --ignore-case
	     Ignore the case of old_string.

     -w, --whole-words
	     Make old_string match only on word boundaries.

     -b, --backup
	     Move the original files to filename~ before replacing them.

     -q, --quiet
	     Quiet mode.

     -v, --verbose
	     Verbose mode.

     -s, --dry-run
	     Simulation mode, no files are changed.

     -R, --recursive
	     Recurse into subdirectories.

     -e, --escape
	     Expand escape sequences in old_string and new_string.  Examples of escape sequences are '
' (new-line), '	' (tab), 'x42' (hexadec-
	     imal number 42), '33' (octal number 033).

     -p, --prompt
	     Prompt for confirmation before replacing each file.

     -f, --force
	     Ignore errors when trying to restore permissions and file ownership.

     -d, --keep-times
	     Keep modification times when replacing files.

     -t, --use-tmpdir
	     Use a temporary directory for storing temporary files, usually the value of the environment variable TMPDIR.  The default is to put
	     temporary files in the same directory as the file being modified.

     -a, --all
	     Do not ignore files and directories starting with .

IMPLEMENTATION NOTES

     An effort has been made to make the program behave as much as the original rpl as necessary.  Where it has been possible to make improve-
     ments, improvements have been made.  This implementation lacks many of the bugs in the original.

EXAMPLES

     Replace all occurences of ``F'' (on word boundaries) with ``A'' in all text files under the grades/ directory:
	   $ rpl -Rwd -x'.txt' 'F' 'A' grades/

SEE ALSO

     find(1), sed(1).

HISTORY

     This program was written for Debian as a free replacement for the non-free rpl program by Joe Laffey.

AUTHORS

     Goran Weinholt <weinholt@debian.org>.

Debian								   July 31, 2005							    Debian
All times are GMT -4. The time now is 03:57 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy