08-16-2016
10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
Hi All,
I have two files
file1:
abc,def,ghi,5,jkl,mno
pqr,stu,ghi,10,vwx,xyz
cba,ust,ihg,4,cdu,oqw
file2:
ravi,def,kishore
ramu,ust,krishna
joseph,stu,mike
I need two output files as follows
In my above example, each row in file1 has 6 fields and each row in file2 has 3... (1 Reply)
Discussion started by: yerruhari
1 Replies
2. UNIX for Dummies Questions & Answers
Hi All,
I have two files
file1:
abc,def,ghi,5,jkl,mno
pqr,stu,ghi,10,vwx,xyz
cba,ust,ihg,4,cdu,oqw
file2:
ravi,def,kishore
ramu,ust,krishna
joseph,stu,mike
I need two output files as follows
In my above example, each row in file1 has 6 fields and each row in file2 has 3... (1 Reply)
Discussion started by: yerruhari
1 Replies
3. Shell Programming and Scripting
Hi All,
I have two files
file1:
abc,def,ghi,5,jkl,mno
pqr,stu,ghi,10,vwx,xyz
cba,ust,ihg,4,cdu,oqw
file2:
ravi,def,kishore
ramu,ust,krishna
joseph,stu,mike
I need two output file as follows
If field3 in file1 is same as field3 in the next line then the field4 should add... (1 Reply)
Discussion started by: yerruhari
1 Replies
4. Shell Programming and Scripting
Hi All,
I have two files
file1:
abc,def,ghi,5,jkl,mno
pqr,stu,ghi,10,vwx,xyz
cba,ust,ihg,4,cdu,oqw
file2:
ravi,def,kishore
ramu,ust,krishna
joseph,stu,mike
I need two output files as follows
In my above example, each row in file1 has 6 fields and each row in file2 has 3... (3 Replies)
Discussion started by: yerruhari
3 Replies
5. Shell Programming and Scripting
Good day,
First off, I would just like to say that I've been helped by a lot of the posts here in my own scripting work in the past few months. I've been a long time roamer, but first time poster. That being said, I'm stuck trying to figure out this issue (For computational research, not a... (4 Replies)
Discussion started by: Eblue562
4 Replies
6. Shell Programming and Scripting
Hi,
I have a csv file which contains data that looks something like this:
Key1 Key2 Key3 New_Key1 New_Key2 New_Key3
102 30 0 - - -
102 40 1 30 40 50
102 50 2 40 50 ... (4 Replies)
Discussion started by: Nishi_Licious
4 Replies
7. Shell Programming and Scripting
I want to remove commands having no output. In below text file.
bash-3.2$ cat abc_do_it.txt
grpg10so>show trunk group all status
grpg11so>show trunk group all status
grpg12so>show trunk group all status
GCPKNYAIGT73IMO 1440 1345 0 0 94 0 0 INSERVICE 93% 0%... (4 Replies)
Discussion started by: Raza Ali
4 Replies
8. 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
9. Shell Programming and Scripting
Gents,
Kindly help me.
I have a file with empty values in selected column, I will like to fill the empty values with the previous value.
Example
Input file
X 4959 30010 66727.00 20457.001 1 1441 66512.00 20234.00 20520.001
X 4959 30010 66727.00 20457.001 145 ... (7 Replies)
Discussion started by: jiam912
7 Replies
10. Shell Programming and Scripting
Hi,
I have the following content in file
ABBR DESC COL3 COL4 COL5 COL6
AAA text desc aaa text text text text
text text text text
text text text text
BBB text desc bbb text text text text
text text text text
CCC ... (10 Replies)
Discussion started by: bobbygsk
10 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)