03-12-2013
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Is it possibe to use sed for the following? I would like to truncate the output of a directory path if it's over 3 directory levels deep. For example:
/dir1/dir2/dir3 -- NO change required
but,
/dir1/dir2/dir3/dir4 would output as ~/dir4
Thanks. (4 Replies)
Discussion started by: here2learn
4 Replies
2. UNIX for Dummies Questions & Answers
If I the path to a directory, what command can I use to return the actual name of that directory.
test=`pwd`/folder1
> $test
folder1
I'd rather avoid anything with regular expressions. Any ideas? (1 Reply)
Discussion started by: ordano
1 Replies
3. AIX
Hello fellow UNIX fans,
I'm running AIX 4.3 and getting an error message “cp: /a/file2.db: A file or directory in the path does not exist” when I run the following command:
cp /b/file.db /a/file2.db
It stops every time about 95% of the way through the copy process at 1,073,741,312 bits. ... (3 Replies)
Discussion started by: Jackson123
3 Replies
4. Shell Programming and Scripting
Hi,
I have a file abcd.txt which has contents in the form of full path file names i.e.
$home> vi abcd.txt
/a/b/c/r1.txt
/q/w/e/r2.txt
/z/x/c/r3.txt
Now I want to retrieve only the directory path name for each row
i.e
/a/b/c/
/q/w/e/
How to get the same through shell script?... (7 Replies)
Discussion started by: royzlife
7 Replies
5. Shell Programming and Scripting
If I enter (simplified):
find . -printf "%p\n"
then all files in the output are prepended by a "." like
./local/share/test23.log
How can achieve that
a.) the leading "./" is omitted
and/or
b.) the full path to the current directory is inserted (enclosed by brackets and a blank)... (1 Reply)
Discussion started by: pstein
1 Replies
6. Shell Programming and Scripting
Hi,
I want to get ABC and 924 from this path. How can i do so?
The length of the path can vary from but end will we same.
/home/abs/cad/bad_BAD/vdhingra/testcases/ABC/924/work
Similarly, CBA and 234 from this path.
/home/abs/cad/aaa/bad_BAD/vdhingra/testcases/CBA/234/work (5 Replies)
Discussion started by: vdhingra123
5 Replies
7. Shell Programming and Scripting
Hello,
I am looking for a command that will give me the last directory name from a path
ex 1 :
/dir1/dir/2/dir3/
output needed
dir3
ex 2 :
/dir1/dir/2/dir3/dir4/
output needed
dir4 (1 Reply)
Discussion started by: Aswex
1 Replies
8. UNIX for Dummies Questions & Answers
My input is as below :
/splunk/scrubbed/rebate/IFIND.REBTE.WROC.txt
/splunk/scrubbed/rebate/IFIND.REBTE.WROC.txt
/splunk/scrubbed/loyal/IFIND.HELLO.WROC.txt
/splunk/scrubbed/triumph/ifind.triumph.txt
From the above input I want to extract the file names only .
Basically I want to... (5 Replies)
Discussion started by: IshuGupta
5 Replies
9. UNIX for Beginners Questions & Answers
Hello,
I am creating a file with all the source folders included in my git branch, when i grep for the used source, i found source included as relative path instead of absolute path, how can convert relative path to absolute path without changing directory to that folder and using readlink -f ? ... (4 Replies)
Discussion started by: Sekhar419
4 Replies
10. UNIX for Beginners Questions & Answers
What is the difference ../directory path and ./directory path in ksh? (1 Reply)
Discussion started by: TestKing
1 Replies
LEARN ABOUT X11R4
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)