05-31-2013
10 More Discussions You Might Find Interesting
1. AIX
Hi every1
Well i have a list of numbers e.g
12304
13450
01234
00123
14567
what i want is a command to check if the number is starting from 0 and then delete the 0 without doing anything else!!!!
any help wud b appreciated!!!!!!!!:( (4 Replies)
Discussion started by: masquerer
4 Replies
2. UNIX for Dummies Questions & Answers
I am receiving a file with 'M-^M' characters...how do I get rid of these characters.
I tried tr -d '\015' and sed '/^M//g', but they didnot work.
Appreciate if someone can help me with this (1 Reply)
Discussion started by: hyennah
1 Replies
3. Shell Programming and Scripting
Hi All,
I wanted to delete all the unwanted characters in the string. ie, to delete all the characters which are not alpha numeric values.
var1="a./bc"
var2='abc/\."123'
like to get the output as
print var1
abc
print var2
abc123
Could you guys help me out pls.
Your help is... (3 Replies)
Discussion started by: ajilesh
3 Replies
4. Shell Programming and Scripting
Hi All,
I have a configuration file (file.cfg) in which data will be like this
;
,
_
+
a to z
A to Z
Now i have to read a textfile (file.txt) and i need to check whether there is any other character present in text file that is not existing in (file.cfg).
If other characters are present... (4 Replies)
Discussion started by: krishna_gnv
4 Replies
5. Shell Programming and Scripting
Hi,
I have a file with about 25 colums separated with '~', but few of the lines have extra tabs ('^') and new line characters ('$'). Is there a way I can delete those characters if they are anywhere before the 25th column in a line?
example:
CLUB000650;12345678;0087788667;NOOP MEMBER ... (4 Replies)
Discussion started by: rudoraj
4 Replies
6. Shell Programming and Scripting
Hi,
I have a file that has data in the following manner,
tt_0.00001.dat 123.000
tt_0.00002.dat 124.000
tt_0.00002.dat 125.000
This is consistent for all the entries in the file. I want to delete the 'tt_' and '.dat' from each line. Could anyone please guide me how to do this using awk or... (2 Replies)
Discussion started by: lost.identity
2 Replies
7. Shell Programming and Scripting
Hello Everyone,
I need help in deleting first 10 characters from the filename in a directory
eg:
1234567890samplefile1.txt
1234567890samplefile2.txt
and so on..
need to get the output as
samplefile1.txt
Thanks in Advance!!!! (8 Replies)
Discussion started by: Olivia
8 Replies
8. Shell Programming and Scripting
hi,
./R1_970330_210505.sard
./R1_970403_223412.sard
./R1_970626_115235.sard
./R1_970626_214344.sard
./R1_970716_234214.sard
...
...
...
for these strings, i wanna remove the ./ for each line
how can i do that?
i know it could possibly be done by sed, but i really have not idea how... (4 Replies)
Discussion started by: sunnydanniel
4 Replies
9. Shell Programming and Scripting
I need to delete the last 11 characters from each number and they are all in the same line (each is in a different column):
-6.89080901827020800000 3.49348891708562325136 1.47988367839905286876 -2.29707635413510400000 -3.49342364708562325136 -4.43758473239905286876 -2.29707635413510400000... (14 Replies)
Discussion started by: rogeriog.em
14 Replies
10. Shell Programming and Scripting
My sed is not working on deleting the entire special characters and leaving what is necessary.grep connections_per a|sed -e 's/\<\!\-\-//g'
INPUT:
<!-- <connections_per_instance>1</connections_per_instance> -->
<method>HALF</method>
<!--... (10 Replies)
Discussion started by: kenshinhimura
10 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)