05-19-2009
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi, I have a flat text file which contains blank line between each text line. Is there any command to get rid of it?
Thanks for your help (11 Replies)
Discussion started by: xfang
11 Replies
2. UNIX for Advanced & Expert Users
I have a file with one of the following lines, when opened with vi
33560010686GPT£120600GBPGBP10082007DS
In the above line, I want to get rid of the junk character before the £ (pound sysmbol).
When I tried copying £ from windows and copy in unix vi, it prints as £ and I tried pattern replace... (2 Replies)
Discussion started by: nskworld
2 Replies
3. Shell Programming and Scripting
A sed command works most of the time however it fails sometimes.
I put each line (record) I read of a file through the following command
data=$(cat file | sed 's///g' | sed 's|.*ex:Msg\(.*\)ex:Msg.*|\1|' )
When I run the script I get a message that states that there is an invalid format... (6 Replies)
Discussion started by: gugs
6 Replies
4. UNIX for Dummies Questions & Answers
Hi All,
Im selecting a large record from a table and putting it in a file in the unix box. The file has a hidden character "^[[D " present in it. Can any one help me in getting rid of the character
Thanks in advance, (4 Replies)
Discussion started by: madhan@29
4 Replies
5. Shell Programming and Scripting
Hi Unix Gurus,
I have a file with 100,000 lines with lines in the format:
1,35518,35518,1,2,1,72,1253889535,1253889775,240,30,152.163.141.8,US,0,00,-g 1253888723-g 1253889445
1,78973,78973,1,2,2,91,1253889535,1253889775,240,30,152.163.141.8,US,0,00,-g 1253888723-g 1253889445... (3 Replies)
Discussion started by: toms
3 Replies
6. Shell Programming and Scripting
Hi Guys,
I am creating a couple of temp. files in a script. After completing the script, I am using the rm command to delete these files. The files are getting deleted but I am getting "filename - cannot find file;no such file or directory" error in my bash shell terminal window.
I am using... (3 Replies)
Discussion started by: npatwardhan
3 Replies
7. Shell Programming and Scripting
I have a file that I ran the dos2unix utility on, it cleans up pretty well, but I noticed an occasional ^M leftover, (actual characters) these may or may not be strays from my original dos file. Either way, I want to get rid of the ^ and any character that may follow. ^M ^C or whatever.
How do I... (6 Replies)
Discussion started by: ajp7701
6 Replies
8. UNIX for Dummies Questions & Answers
When I use vi to see what's in the file I get this:
int add1(int x) {^M return x + 1;^M}
^Mint subtract1(int x) {^M return x - 1;^M}
^Mint double_it(int x) {^M return x * 2;^M}
^Mint halve_it(int x) {^Mreturn x / 2;^M}
^Mint main() {^M int myint;^M int result;^M ... (2 Replies)
Discussion started by: Nonito84
2 Replies
9. Red Hat
admin.campaign.sql
admin.cardnumber_filter.sql
understand that rename is using mv command but how do I rename such that it become the following:
campaign.sql
cardnumber_filter.sql
thanks (2 Replies)
Discussion started by: jediwannabe
2 Replies
10. Solaris
Hello,
CDE workspace.
How to get rid of annoying popping up file manager window which appears every time after logging in.
For example.any suggestions, I would be appreciate. (3 Replies)
Discussion started by: wolfgang
3 Replies
LEARN ABOUT SUNOS
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)