Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: sed for query
Top Forums Shell Programming and Scripting sed for query Post 302423200 by JayC89 on Thursday 20th of May 2010 10:43:54 AM
Old 05-20-2010
sed for query
Hi all, I am trying to remove quite a lot of numbers for a file I have which looks something along the lines of;

Code:
1,2,3,4,5,6 etc

I have a list of numbers I want removing looking like;
Code:
10000
10987
16572
etc
etc

and have been trying to run;

Code:
for id in `cat list` ; do sed -i -e 's/$id,//g' customers.cfg ; done

However when I come to check the original file nothing has changed. I can run;

Code:
for id in `cat list` ; do echo $id ; done

And that works fine, so it looks like my "sed" syntax is incorrect somewhere down the line.

Can anyone point me in the right direction of getting this working?

Thanks!
JayC89
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

sed query..

hi, I have an xml file and I need to replace the tags with different names all at a time here is what I have <cevalue> <cevalue1> <cevalue2> <cevalue3> <cevalue4> <cevalue5> and I need these like these... <cevalue> <cevalue> <cevalue> <cevalue> <cevalue> <cevalue> I tried a few but... (2 Replies)
Discussion started by: mgirinath
2 Replies

2. Shell Programming and Scripting

sed query

I have a series of folders /temp/a /temp/b /temp/c In folders a, b, and c, I have files a1.txt..........a20.txt b1.txt..........b40.txt & c1.txt..........c60.txt Each file has the same data format :- Line 1 AAAAA aaaa Line 2 BBB bbbbbb Line 3 CCCC cccccc Etc etc I need to write a... (13 Replies)
Discussion started by: grinder182533
13 Replies

3. Shell Programming and Scripting

SED query

I'm writing a script which word counts the number of lines in two files. If one file is bigger than the other I'd like to edit one of the files to delete some lines to make both the same. It does not matter where in the file the lines are deleted from. It's expected that this will be ran from... (3 Replies)
Discussion started by: chog1010
3 Replies

4. Shell Programming and Scripting

sed related query

Hi I have a file which looks like this //string = "abcd"; //info //string = "*pqrs"; //add string = "#123"; //sub //string = "#1234567890" data = check(string) //string = "#1234567890" I want to modify this as string = "#987"; //mult data = check(string) How do i do that? (1 Reply)
Discussion started by: gopsman
1 Replies

5. UNIX for Dummies Questions & Answers

Reg: Query in sed

Hi Penchal, I would appreciate if you can provide me a brief explanation on what you are trying to do in the commnad below. echo "6-9-2008" | sed 's/\(.\)-\(.\)-\(.*\)/\3-0\2-0\1/g' Thanks Amit (1 Reply)
Discussion started by: patelamit009
1 Replies

6. Shell Programming and Scripting

query on sed

I have done a script using sed which replaces a string in file. I face 2 problems, while using sed command. 1)last line of the file is missing. 2)if i am are using wild card character in the command, Its not taking the next matching pattern ie if I am giving the pattern abc*def to be replaced... (2 Replies)
Discussion started by: iceiceice
2 Replies

7. Shell Programming and Scripting

sed query

hi i had posted this earlier.. got no reply !! how to change assigned value in a file using sed suppose the file contains age = 30; how to change it to age =50; i tried sed 's/^age*./age =50;' filename but i am getting the o/p as age =50; 30; plz hlp!! (4 Replies)
Discussion started by: gopsman
4 Replies

8. Shell Programming and Scripting

sed query

I have a sed query. There is a line which has tilde and I want to separate this line using sed. The line is: ABP_ETC_ROOT=~xdmadm The query to get this line is: sed -n '/\(.*\)~\(.*\)/p' infile I want to get xdmadm from this line and I am using this sed command: sed -n... (5 Replies)
Discussion started by: som.nitk
5 Replies

9. OS X (Apple)

Sed query

Hello Im fairly familiar with using the sed command for substitution, however I have been passed a script which checks the logged on username and directory type with a sed section which I cant figure out. The sed function has me baffled and I cant find out from the man page what its trying to do... (1 Reply)
Discussion started by: costaanglais
1 Replies

10. Shell Programming and Scripting

SED Query

Hi all, I am trying to use SED to input lines to a file in a specific place. So far I have; sed '/#NewEntry/ i\Insert this line' myfile.txt The output is printing to screen correctly but what is the best way to write it back to the file without overwriting everything? I tried adding >... (6 Replies)
Discussion started by: JayC89
6 Replies

LEARN ABOUT DEBIAN

ppmtosixel

ppmtosixel(1)						      General Commands Manual						     ppmtosixel(1)

NAME

       ppmtosixel - convert a portable pixmap into DEC sixel format

SYNOPSIS

       ppmtosixel [-raw] [-margin] [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as input.  Produces sixel commands (SIX) as output.	The output is formatted for color printing, e.g. for a DEC
       LJ250 color inkjet printer.

       If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled.  A printer control header and a color assignment table
       begin the SIX file.  Image data is written in a compressed format by default.  A printer control footer ends the image file.

OPTIONS

       -raw   If  specified,  each  pixel  will  be explicitly described in the image file.  If -raw is not specified, output will default to com-
	      pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands.  A raw file is often an order	of  magni-
	      tude larger than a compressed file and prints much slower.

       -margin
	      If  -margin  is not specified, the image will be start at the left margin (of the window, paper, or whatever).  If -margin is speci-
	      fied, a 1.5 inch left margin will offset the image.

PRINTING

       Generally, sixel files must reach the printer unfiltered.  Use the lpr -x option or cat filename > /dev/tty0?.

BUGS

       Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion.  If the original PPM maxval was
       greater	than  100,  rescaling  also reduces the image depth.  While the actual RGB values from the ppm file are more or less retained, the
       color palette of the LJ250 may not match the colors on your screen.  This seems to be a printer limitation.

SEE ALSO

       ppm(5)

AUTHOR

       Copyright (C) 1991 by Rick Vinci.

								   26 April 1991						     ppmtosixel(1)
All times are GMT -4. The time now is 10:57 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy