05-17-2010
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
GNU sed version 4.1.4 on Windows XP SP3 from GnuWin32
I think that I've come across a seemingly simple text file change problem on a INI formatted file that I can't do with SED without side effects edge cases biting me. I've tried to think of various ways of doing this elegantly and quickly... (5 Replies)
Discussion started by: JakFrost
5 Replies
2. UNIX for Dummies Questions & Answers
Ok so all i'm trying to do here is output a file and change the color of a specific word. I can't use grep with color because I need all lines of the file not just lines that match the pattern.
I can get this substitution to work but when it displays it shows exactly what i'm putting it rather... (14 Replies)
Discussion started by: MrEddy
14 Replies
3. Shell Programming and Scripting
I'm not getting the syntax correct to change a line only on the first occurrence:
I've tried to change only the first match and I've tried to change the from the second match forward
sed 's/<B>PT#/<tr><td class=\"pt1\" width=\"40%\"><B>pt#/1' $file > tmpfile.html
sed ... (0 Replies)
Discussion started by: dba_frog
0 Replies
4. UNIX for Dummies Questions & Answers
Hi
I want to search for a specific pattern in file
Say
ABC;HELLO_UNIX_WORLD;PQR
ABC;HELLO_UNIX_WORLD_IS_NOT_ENOUGH;XYZ
ABC;HELLO_UNIX_FORUM;LMN
Pattern to search is : "HELLO_UNIX_*****" and not "HELLO_UNIX_***_***_"
I mean after "HELLO_UNIX" there can only be one word.In this case... (2 Replies)
Discussion started by: dashing201
2 Replies
5. Shell Programming and Scripting
hi,
I need to number each occurrence of a pattern within a file using sed.
Given
object
0000
object
111
object
222
I need following
1.object
0000
2.object
111
3.object
222 (5 Replies)
Discussion started by: xerox
5 Replies
6. Shell Programming and Scripting
Hi Guys,
i'm trying to use sed to replace the second occurrence of the 3 digit number in an I.P address and replace it with another value but it errors out. please advise
$ cat infil
3538,,,,,,ID,ID1,,,,,,,,,,,123.110.24.5
sed 's/\{1,3\}\./x\./\2/' infil
sed: -e expression #1, char... (2 Replies)
Discussion started by: Irishboy24
2 Replies
7. Shell Programming and Scripting
Hi,
I need a script to start searching a word from the particular record on the result of first occurence i need to change the value in that record.
I have a input file like this
<properties>
<add key="DeliveryWithinDay" value="False" />
<add key="ABC" value="23:00:00 PM" />
<add... (5 Replies)
Discussion started by: NareshN
5 Replies
8. Shell Programming and Scripting
Hi,
I am writing a shell script where I want that # should be added in all those lines as the first character where the pattern matches.
file has lot of functions defined
a.sh
#!/bin/bash
fn a {
beautiful evening
sunny day
}
fn b {
}
fn c {
hello world .its a beautiful day
... (12 Replies)
Discussion started by: ashima jain
12 Replies
9. Shell Programming and Scripting
Hello I have a script that searches a file for a specific string and then changes the nth column after that string. I have searched online for how to do this with sed but have not seemed to find a solution that works for me. I am using bash.
Some background info:
- Currently I am using awk to... (4 Replies)
Discussion started by: prodigious8
4 Replies
10. Shell Programming and Scripting
I am trying to change the number in bold to 2400
01,000300032,193631306,190619,0640,1,80,,2/
02,193631306,000300032,1,190618,0640,CAD,2/
I'm not sure if sed or awk is the answer. I was going to use sed and do a character count up to that point, but that column directly before 0640 might... (8 Replies)
Discussion started by: juggernautjoee
8 Replies
LEARN ABOUT PHP
pbmreduce
pbmreduce(1) General Commands Manual pbmreduce(1)
NAME
pbmreduce - read a portable bitmap and reduce it N times
SYNOPSIS
pbmreduce [-floyd|-fs|-threshold ] [-value val] N [pbmfile]
DESCRIPTION
Reads a portable bitmap as input. Reduces it by a factor of N, and produces a portable bitmap as output.
pbmreduce duplicates a lot of the functionality of pgmtopbm; you could do something like pnmscale | pgmtopbm, but pbmreduce is a lot
faster.
pbmreduce can be used to "re-halftone" an image. Let's say you have a scanner that only produces black&white, not grayscale, and it does a
terrible job of halftoning (most b&w scanners fit this description). One way to fix the halftoning is to scan at the highest possible res-
olution, say 300 dpi, and then reduce by a factor of three or so using pbmreduce. You can even correct the brightness of an image, by
using the -value flag.
OPTIONS
By default, the halftoning after the reduction is done via boustrophedonic Floyd-Steinberg error diffusion; however, the -threshold flag
can be used to specify simple thresholding. This gives better results when reducing line drawings.
The -value flag alters the thresholding value for all quantizations. It should be a real number between 0 and 1. Above 0.5 means darker
images; below 0.5 means lighter.
All flags can be abbreviated to their shortest unique prefix.
SEE ALSO
pnmenlarge(1), pnmscale(1), pgmtopbm(1), pbm(5)
AUTHOR
Copyright (C) 1988 by Jef Poskanzer.
02 August 1989 pbmreduce(1)