11-20-2011
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello all,
can you help me in this problem, assume We have two txt file (file_1 and file_3) one is file_1 contains the data:
a 0
b 1
c 3
a 7
b 4
c 5
b 8
d 6
.
.
.
.
and I need to count the lines with the matching data (a,b,..) and print in new file called file_2 such as the... (4 Replies)
Discussion started by: GoldenFalcon10
4 Replies
2. Shell Programming and Scripting
Hi!
In our current directory there are around 35000 files.
Out of these a few thousands(around 20000) start with, "testfiles9842323879838".
I want to count the number of files that have filenames starting with the above pattern. Please help me with the command i could use.
Thank... (7 Replies)
Discussion started by: atechcorp
7 Replies
3. Shell Programming and Scripting
Hi,
Is there a way to find the count of number of rows of a.txt please? Where a.txt is as follows:
/usr/bin/uuencode /tmp/a.csv a.csv > /tmp/a.txt
#a.csv is a comma separated variable file
Cheers,
Girish. (7 Replies)
Discussion started by: girish1428
7 Replies
4. UNIX for Dummies Questions & Answers
Could you please tell e how to find the total number of rows in a .dat file.
edit by bakunin: this is exactly why in "advanced and expert" section?? I transfer this thread to "Unix for Dummies Questions and Answers" (2 Replies)
Discussion started by: Deeptanshu
2 Replies
5. Shell Programming and Scripting
Hi,
I have multiple files of same format and I want to delete the lines starting with # and The from all of them
I am using
egrep -v '^(#|$)'
for # but unable to do for both # and The
Please guide
Thanks (12 Replies)
Discussion started by: bioinfo
12 Replies
6. Shell Programming and Scripting
Hi All,
I need to extract duplicate rows from a file and write these bad records into another file. And need to have a count of these bad records.
i have a command
awk '
{s++}
END {
for(i in s) {
if(s>1) {
print i
}
}
}' ${TMP_DUPE_RECS}>>${TMP_BAD_DATA_DUPE_RECS}... (5 Replies)
Discussion started by: Arun Mishra
5 Replies
7. UNIX for Dummies Questions & Answers
Hi,
I need a solaris shell script to read multiple files and count number of unique name rows(strings) from those files. The input and output should be like this
Input:
file 1
abc
cde
abc ... (9 Replies)
Discussion started by: ssk250
9 Replies
8. UNIX for Dummies Questions & Answers
e.g.
File name: File.txt
cat File.txt
Result:
#INBOUND_QUEUE=FAQ1
INBOUND_QUEUE=FAQ2
I want to get the value for one which is not commented out.
Thanks, (3 Replies)
Discussion started by: Tanu
3 Replies
9. Shell Programming and Scripting
OS : Oracle Linux 6.5
Shell : bash
I have a file whose contents look like below. I want to count the number of occurences of strings starting with 3-.
How can I do this ? I couldn't wordwrap the below line. Hence it looks long.
'3-90892405251', '3-90892911050', '3-90893144163',... (8 Replies)
Discussion started by: John K
8 Replies
10. Shell Programming and Scripting
I have a file with 48 rows. I am counting 6 rows and adding 6 to that number and repeating the operation, and then output the value in column 1. For the second column, I would like to get sort of a binary output (1s and 2s) every 3rd row. This is what I have:
awk '{print ++src +... (1 Reply)
Discussion started by: Xterra
1 Replies
LEARN ABOUT PHP
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)