08-27-2014
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi ,
after pressing down arrow,up arrow
I want to find previous,next command in unix
wat can i do for tat plz tell me
I am accesing unix server thru telnet.
my shell prompt ksh (4 Replies)
Discussion started by: arulkumar
4 Replies
2. UNIX for Dummies Questions & Answers
Hi all,
Is there a way to bring back the previous unix command without retyping?
I tried the "arror up" key, and it seems not working (sun solaris). What is the correct way?
Thanks! (4 Replies)
Discussion started by: syang68
4 Replies
3. Shell Programming and Scripting
Hi,
I am a newbie in SHell Programming.
I want to ask something about referring the result of the previous command in Shell-Prog.
For example :
bnm@dsds~> ifconfig
eth0 Link encap:Ethernet HWaddr 00:0B:CD:85:A5:8A
inet addr:192.168.0.2 Bcast:192.168.0.225 Mask... (2 Replies)
Discussion started by: bobb
2 Replies
4. Shell Programming and Scripting
HELLO...I wanted to ask you, than sure know unix more than me, as I can obtain the following solution: I have a file with rows of the type:
CIAO COME STAI
PERCHE COME STAI
CIAO COME VA
ALLO CHE FACCIAMO
.................
I would that if in a line is present the word (for example) " CHE... (9 Replies)
Discussion started by: fabi20
9 Replies
5. Shell Programming and Scripting
My requirement is that when ever search criteria matchs in log file, the previous line just above the search word as well as search word should be print.
sample log file
--03-19T11:26 xxx create version "a.sh@@/main/6"
"104157 "
--03-18T16:01 xxx create version "a.sh@@/main/5"
... (6 Replies)
Discussion started by: jadoo_c2
6 Replies
6. UNIX for Dummies Questions & Answers
how can i display month of the year i was born with using man command?
thanks (2 Replies)
Discussion started by: janetroop95
2 Replies
7. UNIX for Dummies Questions & Answers
Hi Gurus,
I would like to get the date for the previous year based on the date I specify.
For e.g. If I input today's date (i.e. 20130422) I need to get 20120422.
We don't have GNU and use K Shell. Any help is highly appreciated.
Thanks
Shash (4 Replies)
Discussion started by: shash
4 Replies
8. Shell Programming and Scripting
Dear All,
I have file like this,
13819 32.07 1877.65
0 481.81 2100.86
0 789.35 2274.05
0 4627.61 4421.36
0 5831.52 4855.50
20844 38.68 1902.15
0 291.02 1945.88
0 452.57 2013.94
0 2194.28 ... (6 Replies)
Discussion started by: attila
6 Replies
9. Shell Programming and Scripting
Hi,
I was able to use !! on the console.
But when I used !! in the run.sh, it says something like command not found. (3 Replies)
Discussion started by: alvinoo
3 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)