03-01-2012
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I have input like:
1234567890
cut -c1-3,6-7,9-10 input > output
Now I got 1236790.
I want to insert space between each cut. So the output like:
123 67 90
Can anybody help?
Thanks. (7 Replies)
Discussion started by: sslr
7 Replies
2. Shell Programming and Scripting
i want to insert a variable in the last column of a file, the columns are separated by "|". I want to insert the variable in everyline of the file . (7 Replies)
Discussion started by: dineshr85
7 Replies
3. Shell Programming and Scripting
Hello! I have a text file containing
some text : : : bla
other text : : : bla
any text : : : bla
containing 3 columns separated by the ':' sign.
Now i want to insert 'this' in the 2nd line after the 2nd column-deliminiter (i.e. into 3rd column), like
some text : : : bla
other text :... (1 Reply)
Discussion started by: knoxo
1 Replies
4. Shell Programming and Scripting
I want to extraxt data from a html table
the html file is downloaded from
UG / PG Univ - Exam.Results April/May 2008
After processing the html file using sed i got the output like this
11305106082,RANJANI R,
CS1251,20,69,P
CS1302,20,45,P
EC1006,20,52,P
EC1351,20,53,P... (5 Replies)
Discussion started by: a_artha
5 Replies
5. Shell Programming and Scripting
Hi All,
I need a shell script which could insert a sequence number column inside a dat file(pipe delimited).
I have the dat file similar to the one as shown below..
|A|B|C||D|E
|F|G|H||I|J
|K|L|M||N|O
|P|Q|R||S|T
As shown above, the column 4 is currently blank and i need to insert sequence... (5 Replies)
Discussion started by: nithins007
5 Replies
6. Shell Programming and Scripting
Dear Team
I need to insert field(which is need to taken from previous line's first field) in first column if its blank. I had tried using sed but not find the way. Detail input and output file as below.
Kindly help for same.
INPUT:
SCGR SC DEV DEV1 NUMDEV DCP ... (7 Replies)
Discussion started by: jaydeep_sadaria
7 Replies
7. Shell Programming and Scripting
At the top of the XYZ file, I need to insert the ABC data value of column 2 only when ABC column 1 matches the prefix XYZ file name (not the ".txt"). Is there an awk solution for this?
ABC Data
0101 0.54
0102 0.48
0103 1.63
XYZ File Name
0101.txt
0102.txt
0103.txt
... (7 Replies)
Discussion started by: ncwxpanther
7 Replies
8. Shell Programming and Scripting
Hello guys,
I'm new to shell programming, I would like to insert two new columns in a space separated file having this format using awk, starting from the third row:
A B C D E F 1 ;
A B C D E F 1 ;
A B C D E F 1 ;
A B C D E F 1 ;
Basically, the resulting file should have the following... (3 Replies)
Discussion started by: transat
3 Replies
9. UNIX for Advanced & Expert Users
Hi, I have been trying to see how i can insert a column in the beginning to my html table
This is how it looks
Name Age
Sid 32
John 33
Mary 34
I want to insert a column Job before Name column, so it looks like
Job Name Age
IT Sid 32
Doctor... (3 Replies)
Discussion started by: sidnow
3 Replies
10. UNIX for Beginners Questions & Answers
Source Code of the original script is down below please run the script and try to solve this problem
this is my data and I want it column wise
2019-03-20 13:00:00:000
2019-03-20 15:00:00:000
1
Operating System
LAB
0
1
1
1
1
1
1
1
1
1
0
1 (5 Replies)
Discussion started by: Shubham1182
5 Replies
LEARN ABOUT LINUX
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)