10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
I have to ascend the number of two selected columns by horizontal manner.
For example, I have a data like this in csv file (tab delimited format)
08 1 19185 18010
16 4 7960 9339
01 6 516769 517428
09 9 51384 49270
I need to ascend the two columns numbers (horizontal manner) like as... (5 Replies)
Discussion started by: dineshkumarsrk
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2. Shell Programming and Scripting
The purpose is to check if values for column 3 and 4 in file1 match with column 1 in file2.
If any value match do:
1) Replace values in file2 for column 2 and 3 using the information of file1 columns 5 and 6
2) Replace string ($1,1,5) and string ($1,6,5) in file2 with values of columns 7... (8 Replies)
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3. Shell Programming and Scripting
a,b,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,aa,bb,cc,dd,ee,ff,gg,hh,ii
a thru ii are digits and strings....
The awk needed....if coloumn 9 == i (coloumn 9 is string ), output the sum of x's(coloumn 22 ) in all records and sum of y's (coloumn 23 ) in all records in a file (records.txt).... (6 Replies)
Discussion started by: BrownBob
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4. Shell Programming and Scripting
Can I transform input like the below ?
Note: Insert zeros if there is no value to transform.
Input
key name score
key1 abc 10
key2 abc 20
key1 xxx 100
key2 xxx 20
key1 zzz 0
key2 zzz 29
key3 zzz 129
key1 yyy 39output
abc ... (1 Reply)
Discussion started by: quincyjones
1 Replies
5. Shell Programming and Scripting
hi! i have two files that looks like this
file 1:
ABS 123 456
BCDG 124 542
FGD 459 762
file 2:
ABS 132 456
FGD 459 762
output would be:
from file1:
ABS 132 456
BCDG 124 542
from file 2:
ABS 132 456 (4 Replies)
Discussion started by: kingpeejay
4 Replies
6. Shell Programming and Scripting
Hey guys
I have got a tab-separated file and I want to copy only selected records from two columns at a time satisfying specified condition, and create a new file.
My tab separated file is like this
ID score ID score ID Score ID score ID score
1_11 0.80 2_23 0.74 2.36 0.78 2_34 0.75
A_34... (9 Replies)
Discussion started by: jacks
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7. Shell Programming and Scripting
Hello Friends,
Hope you are doing well.
I am writing a shell script to find out the log file which are not updated in last 1 hours. I've almost completed the script but need your help in formatting its outputs.
Currently, the output of the script is like this(as a flat row):
... (3 Replies)
Discussion started by: singh.chandan18
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8. Shell Programming and Scripting
I have learned file comparison from my previous post here. Then, it is comparing the whole line. Now, i have a new problem.
I have two files with 3 columns separated with a "|". What i want to do is to compare the second and third column of file 1, and the second and third column of file 2. And... (4 Replies)
Discussion started by: kingpeejay
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9. Shell Programming and Scripting
I can not figure out this one, so I turn to unix.com for help, I have a file, in which there are some lines containing continuously duplicate columns, like the following
adb abc abc asd adfj
123 123 123 345
234 444 444 444 444 444 23
and the output I want is
adb abc asd adfj
123 345... (5 Replies)
Discussion started by: fedora
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10. UNIX for Dummies Questions & Answers
Hi all,
I have 50 columns are there, want to exctract 9 columns only.These are not there in sequence.
How can i do it. (2 Replies)
Discussion started by: ashokkumar83
2 Replies
ppmtosixel(1) General Commands Manual ppmtosixel(1)
NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO
ppm(5)
AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)