06-20-2012
9 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I do not know much about shell scripting and need to create a script and I am at a loss. If someone can help me, that would be great!!
I have two directories:
/dir1
/dir2
I need to get the sequence number which is part of the filename in /dir1 and delete all files in /dir2 that are... (4 Replies)
Discussion started by: stky13
4 Replies
2. Shell Programming and Scripting
hi,
i am a newbie and have to write a rather complicated script. Assume that i have a variable called x and a C source code file say file1.c (these are the inputs of the script) and i need to find the names of all the functions in the C file containing x.Take the following code as an example:
... (2 Replies)
Discussion started by: samantha grace
2 Replies
3. Solaris
Hello all.
I have a tar file that contains a number of files that are stored in different directories.
If I extract this tar file with -xvf , the directories get created.
Is there a way to extract all of the files into one directory without creating the directories stored in the tar file. (9 Replies)
Discussion started by: gkb
9 Replies
4. UNIX for Dummies Questions & Answers
Hi There,
I'm a competent computer user that is learning basic unix commands.
This is a slightly hypothetical question (for now at least!) but I can see a need for doing something like this in the near future.
So I recently learned this command mkdir foo{1..100} which of course create's... (4 Replies)
Discussion started by: lookslikejames
4 Replies
5. Shell Programming and Scripting
Hi,
I have got a requirement for which i need your help. The following problem is required to get solved in PERL SCRIPT. Here is the requirement.
There are 4 folders say SRC_DIR1, SRC_DIR2 and TGT_DIR_1,TGT_DIR_2
(Note: both path of SRC_DIR1 & SRC_DIR2 are different but both path of... (1 Reply)
Discussion started by: shadow_fawkes
1 Replies
6. Shell Programming and Scripting
Hi,
I have got a requirement for which i need your help. The following problem is required to get solved in PERL SCRIPT. Here is the requirement.
There are 4 folders say SRC_DIR1, SRC_DIR2 and TGT_DIR_1,TGT_DIR_2
(Note: both path of SRC_DIR1 & SRC_DIR2 are different but both path of... (4 Replies)
Discussion started by: shadow_fawkes
4 Replies
7. Shell Programming and Scripting
Dear All,
I have some list of directories names 1 2 3 .... n.
Number can vary each time when I run some software to create these folders.
When ever I wanted to run new case I have to remove all the sub-directories named 1 2 3 4 .... in case directory.
How can I do it using rm -r command?
... (4 Replies)
Discussion started by: linuxUser_
4 Replies
8. Shell Programming and Scripting
Hi,
I have a requirement to compare files in different directories with different names. The files have a datestamp in their name (It might not be a sequential datetimestamp).
This is for Redhat Linux. I have more than 5 directories and more than 10 file in each directory to be compared.
... (4 Replies)
Discussion started by: GosarJunk
4 Replies
9. Shell Programming and Scripting
OS : Fedora Linux 26
Shell : bash
I have a file with around 5000 lines like below.
file /usr/share/icons/Papirus/16x16/actions/papirus-icon-theme-20180501-1.noarch conflicts with file ...
file /usr/share/icons/Papirus/16x16/actions/align-horizontal-left-to-anchor.svg conflicts between... (7 Replies)
Discussion started by: John K
7 Replies
LEARN ABOUT FREEBSD
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)