02-03-2009
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I've been working with an awk script and I'm wondeing id it's possible to count records in a file which DO NOT contain, in this instance fields 12 and 13.
With the one script I am wanting to display the count for the records WITH fields 12 and 13 and a seperate count of records WITHOUT fields... (2 Replies)
Discussion started by: Glyn_Mo
2 Replies
2. Shell Programming and Scripting
Hi, I am having the following number in the file tmp
31013.004
20675.336
43318.190
30512.926
48992.559
277893.111
41831.330
8749.113
415980.576
28273.054
I want to add these numbers, I am using following script
awk 'END{print s}{s += $1}' tmp
its giving answer 947239 which is correct,... (3 Replies)
Discussion started by: chaitubek
3 Replies
3. Shell Programming and Scripting
Hi,
I want to perform a task using shell script. I am new to awk programming and any help would be greatly appreciated.
I have the following 3 files (for example)
file1:
Name count Symbol
chr1_1_50 10 XXXX
chr3_101_150 30 YYYY
File2:
Name ... (13 Replies)
Discussion started by: Diya123
13 Replies
4. Shell Programming and Scripting
Can awk count numbers until it reaches the end of the sequence after the slash?
input:
serv1a, 32, 41/47, 53, 89/100, 108/11, 113.
serv1b, 1/2, 114/18, 121/35, 139/40, 143/55, 159/64,
serv2, 255/56, 274/77, 763, 774/75, 777, 1434/35, 1444/50, 1715, 2025/31, 2048.
serv10b, 804, 808, 929/32,... (9 Replies)
Discussion started by: sdf
9 Replies
5. Shell Programming and Scripting
I have a list of URLs and I want to be able to count the number of instances of addresses ending in a certain TLD and output and sort it like so.
5 bdcc.com
48 zrtzr.com
49 rvo.com
Input is as so
ync.org
sduzj.edu
sduzj.edu
sduzj.edu
sduzj.edu
sduzj.edu
sduzj.edu
sduzj.edu... (1 Reply)
Discussion started by: Pjstaab
1 Replies
6. Shell Programming and Scripting
ok, so a user can specify options as is shown below:
ExA:
cpu.pl!23!25!-allow
or
ExB:
cpu.pl!23!25!-block!all
options are delimited by the exclamation mark.
now, in example A, there are 4 options provided by the user.
in example B, there are 5 options provided by the user.
... (3 Replies)
Discussion started by: SkySmart
3 Replies
7. Shell Programming and Scripting
Probably a simple to this, but unsure how to do it. I would prefer an AWK solution. Below is the data set.
1 2 3
2 5 7
4 6 9
1 5 4
8 5 7
1 1 10
15 3 12
3 7 9
9 8 10
4 5 2
9 1 10
4 7 9
7 12 6
9 13 8
For the second... (11 Replies)
Discussion started by: mollydog11
11 Replies
8. UNIX for Dummies Questions & Answers
Hi,
I have two text files (1.txt and 2.txt).
2.txt contains two columns which are extracted from 1.txt using a simple if(condition) print.
I want to:
- count how many times the values contained in 2.txt appear in 1.txt
-if they appear just one time, I have to delete the entire row in... (5 Replies)
Discussion started by: Pintug
5 Replies
9. Shell Programming and Scripting
I want to count lines of a file using AWK (only) and not in the END part like this awk 'END{print FNR}' because I want to use it.
Does anyone know of a way?
Thanks a lot. (7 Replies)
Discussion started by: guitarist684
7 Replies
10. UNIX for Dummies Questions & Answers
Hi!!
I am trying to write a program which allows me to count how many times I used the same word in a text:
{$0 = tolower ($0)
gsub (/_]/, "", $0)
for (i = 1; i <= NF; i++)
freq++
}
END {
for (word in freq)
printf "%s\t%d\n", word, freq
It seems work but... (3 Replies)
Discussion started by: ettore8888
3 Replies
LEARN ABOUT XFREE86
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)