06-06-2019
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
If I am not sure of how many fields a string has, say
STR=/homt/root/dir1/dir2/../dirn
how to use "cut -d/ -f" to get dirn ? (3 Replies)
Discussion started by: meili100
3 Replies
2. Shell Programming and Scripting
Guys,
I have a line like this: 109;201;1099010
and as you see that first field 109 and the last field starts with 109. I need to cut the rest in the last field after 109 which is 9010
How to do it? (2 Replies)
Discussion started by: sfaqih
2 Replies
3. Shell Programming and Scripting
Hello,
In a shell script I am writing I execute this command:
uniq -c names1.tmp > names2.tmp
In names2.tmp I get these results:
4 user
2 username
1 users
1 veriano
1 victoria
I need to isolate the names in this file and put it in another file. However it seems that the number... (7 Replies)
Discussion started by: mojoman
7 Replies
4. Shell Programming and Scripting
Hello guys.
Is there any way I can cut the last field using "cut" ???
(without putting it into a while...)
Thanks.
435 Gavea. (9 Replies)
Discussion started by: 435 Gavea
9 Replies
5. Shell Programming and Scripting
Hi,
I am a file with the following layout.
field1|field2|field3|field4|field5|field6|field7
field1|field2|field3|field4|field5|field6|field7
field1|field2|field3|field4|field5|field6|field7
I need to write a file with the below layout
field1|field2|fieldx|field6
where fieldx =... (5 Replies)
Discussion started by: shivacbz
5 Replies
6. UNIX for Advanced & Expert Users
Hello,
I had posted earlier about printing fields using AWK, but now I have a slightly different problem. I have text files in the format:
1*2,3,4,5
and wish to print the first, third, and fifth fields, including the asterisk and commas. In other words, after filtering it should look... (1 Reply)
Discussion started by: Jahn
1 Replies
7. Shell Programming and Scripting
Hi Everyone,
I have one a.txt:
a b 001 c
b b 002 c
c c, not 002 c
The output should be
001
002
002
If i use cut -f 3 -d' ', this does not work on the 3rd line, so i thought is any way to cut the field counting from the end? or any perl thing can do this?:confused:
... (3 Replies)
Discussion started by: jimmy_y
3 Replies
8. Shell Programming and Scripting
hi all
i am need to cut the name of the file which i am entering in the comand line. say abc.txt is the name of the file i need to cut only the "abc" part. when i try doing this(using cut -f1) i am getting the data that s present inside the file and the file name. pls help.... (3 Replies)
Discussion started by: din_annauniv
3 Replies
9. Shell Programming and Scripting
Hello,
I have got a log file and would need to write a script to cut the every first and second fields of every third line.
Job Name : dummytextd_v1
Status : KILLED
TIMEDOUT 2011-05-01 05:33
Job Name : dummyttx_v1
Status : KILLED
TIMEDOUT 2011-05-03 02:33
Job Name :... (4 Replies)
Discussion started by: Kochappa
4 Replies
10. Shell Programming and Scripting
i have file as with the below content
aaa.bbb.cc.dd
aaa.fff.bb
yyyyy.rrrrr.ggggg.iii
wwww.w.r.ty
i want the o/p as below
dd
bb
iii
ty
but i dont want to use awk. is there any other way to do this ? (5 Replies)
Discussion started by: anandgodse
5 Replies
LEARN ABOUT DEBIAN
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)