07-10-2006
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
scriptname
i have made a script to perform so tasks and i managed to complete the tasks for all the options
the problem i am facing is that i can run the scripts individually but i would like to make it such that it can accept multiple options and give me the appropriate output
e.g.... (1 Reply)
Discussion started by: problems
1 Replies
2. Shell Programming and Scripting
I m trying to use getopt
This is my script, but it doesn't take argument in variable,
Please help.
set - - `getopt mscl: $*`
if
then
echo "Exiting...."
exit 2
fi
for i in $*
do
case $i in
-m) MAIL="$i"; shift;;
-s) SCRIPT=$OPTARG; shift;;
-c) COB=$OPTARG; shift;;... (2 Replies)
Discussion started by: darshakraut
2 Replies
3. Shell Programming and Scripting
:)
Can anybody help me about how to use getopt in shell scripting. (3 Replies)
Discussion started by: darshakraut
3 Replies
4. Shell Programming and Scripting
Hi,
I want to use the getopt function to parse some arguments for a script.
while getopts "i:f:r:" OPTION
do
case $OPTION in
i) iter=$OPTARG;;
f) frame=$OPTARG;;
r) roi=$OPTARG;;
?) echo Usage: ......
exit 2;;
esac
done
However, I... (5 Replies)
Discussion started by: giorgos193
5 Replies
5. Shell Programming and Scripting
Hi,
I have a perl script with two functions say func a and func b.
sub a {
-----------
---------
}
sub b {
---------
---------
}
I want to use this function on command line as we can do in shell script using getopt.
My motto here is to run the script like this
... (7 Replies)
Discussion started by: namishtiwari
7 Replies
6. Shell Programming and Scripting
I am working on a script that lists files in a directory with a few file attributes depending on what option the user specifies at the command prompt. The script uses Getopt::Std and takes two switches.
The first switch allows the user to specify a directory, the second switch gives a long... (3 Replies)
Discussion started by: Breakology
3 Replies
7. Shell Programming and Scripting
Hi,
I am in middle of using some getopt command and am finding some issue. The usage of my script can be like this:
abc.sh <-d | -p |-r> -online < 0 | 1>
The first argument can be either -d or -p or -r. The second argument can be either -s and a id or a file name. So I am stuck up in writing... (2 Replies)
Discussion started by: sachin.ag
2 Replies
8. UNIX for Dummies Questions & Answers
Hi
I need to use getopt option and I have no idea what it is or how to use it.
I need to use it on this awk script:
awk -F, -v cellid="$1" -v paramval="$2" -v oldfile="$3" -v newfile="$4" '$2==cellid{$3=newvalue}1' OFS="," $3 > $4
I tried reading up on it but I just confuse... (2 Replies)
Discussion started by: ladyAnne
2 Replies
9. Shell Programming and Scripting
I am struggling to understand how getopt can be used in a csh script.
can anybody post a csh script using getopt.
Please! (4 Replies)
Discussion started by: animesharma
4 Replies
10. Shell Programming and Scripting
Hi All,
An old work friend wrote a script which I've been trying to understand how a section of it currently works and work out how i can add some command line switches which i can use later in the script to append the output depending on the command line arguements.
Currently it works by... (1 Reply)
Discussion started by: mutley2202
1 Replies
LEARN ABOUT REDHAT
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)