10-03-2019
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have a variable, var="some1|some2|some3"
I want to know how many "|" are in $var.
When I say echo $var | grep -c '|'
I am getting only 1 :confused: :confused: :confused: ? (4 Replies)
Discussion started by: jingi1234
4 Replies
2. UNIX for Dummies Questions & Answers
hi forums
i need help with a little problem i am having.
i need to count the number of fields that are in a saved variable so i can use that number to make a different function work properly.
is there a way of doing this without using SED/AWK?
anything would be greatly appreciated (4 Replies)
Discussion started by: strasner
4 Replies
3. Shell Programming and Scripting
I am a newbie in UNIX shell script and seeking help on this UNIX function. Please give me a hand. Thanks.
I have a large file. Named as 'MyFile'. It was tab-delmited. I am told to write a shell function that counts the number of occurrences of the ord “mysring” in the file 'MyFile'. (1 Reply)
Discussion started by: duke0001
1 Replies
4. Shell Programming and Scripting
I need to count the number of occurrences of a pattern, say 'key', between each occurrence of a different pattern, say 'lu'.
Here's a portion of the text I'm trying to parse:
lu S1234L_149_m1_vg.6, part-att 1, vdp-att 1 p-reserver IID 0xdb
registrations:
key 4156 4353 0000 0000
... (3 Replies)
Discussion started by: slipstream
3 Replies
5. Shell Programming and Scripting
I currently use LaTeX together with a sed script to set cloze test papers for my students. I currently pepend and equals sign to the front of the words I want to leave out in the finished test, =perpendicular, for example. I am able to number the blanks using a variable in LaTeX. I would like to... (8 Replies)
Discussion started by: maouinin
8 Replies
6. Shell Programming and Scripting
Hi,
I have a file (movies.sh), this file contains list of movies such as
I want to redirect the movies from movies.sh to file_to_process to allow me process the file with out losing anything.
I have tried
Movies.sh >> file_to_process
But I want to add the row number to the data... (2 Replies)
Discussion started by: INHF
2 Replies
7. Shell Programming and Scripting
Hello,
I have an output from GDB with many entries that looks like this
0x00007ffff7dece94 39 in dl-fini.c
0x00007ffff7dece97 39 in dl-fini.c
0x00007ffff7ab356c 50 in exit.c
0x00007ffff7aed9db in _IO_cleanup () at genops.c:1022
115 in dl-fini.c
0x00007ffff7decf7b in _dl_sort_fini (l=0x0,... (6 Replies)
Discussion started by: ikke008
6 Replies
8. Shell Programming and Scripting
I am trying to count the occurrences of ALL words in a file. However, I want to exclude certain words: short words (i.e. <3 chars), and words contained in an blacklist file. There is also a desire to count words that are capitalized (e.g. proper names). I am not 100% sure where the line on... (5 Replies)
Discussion started by: Cronk
5 Replies
9. Shell Programming and Scripting
Hi Gurus,
I'm scratching my head over and over and couldn't find the the right way to compose this AWK properly - PLEASE HELP :confused:
Input:
c,d,e,CLICK
a,b,c,CLICK
a,b,c,CONV
c,d,e,CLICK
a,b,c,CLICK
a,b,c,CLICK
a,b,c,CONV
b,c,d,CLICK
c,d,e,CLICK
c,d,e,CLICK
b,c,d,CONV... (6 Replies)
Discussion started by: Royi
6 Replies
10. Shell Programming and Scripting
Hello Friends,
Can somebody assist an issue I am having? I have a separate file with a list of account ids
XXX200B02Y01
XXX200B03Y01
XXX200B05Y01
XXX200B07Y01
XXX200B08Y01
I call the file, and run an egrep against a directory and logfiles
AccountID=$(cat... (2 Replies)
Discussion started by: liketheshell
2 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)