04-10-2013
Why not...
extract the 7th and 8th fields if date is in two fields?
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1. Shell Programming and Scripting
Hi,
I face difficulty where the number which I grep before I would like to use it as number to grep again in another file.
For example in file 1, I extract the second field and assign to variable "char" in a while loop. And then, I grep again this char to get i and j.
char=`echo "${LINE}"|... (17 Replies)
Discussion started by: ahjiefreak
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2. UNIX for Dummies Questions & Answers
below are the contents of file 'tmp.out':
2|34|534|
1|355|54|
1|443|34|
3|43|768|
3|7|887|
1|9|990|
How do I extract the 2nd and 3rd columns of file 'tmp.out' only when the first column equals '1'.
Note that this file will be huge; atleast 5million+ rows, so I want to avoid looping... (4 Replies)
Discussion started by: ChicagoBlues
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3. Shell Programming and Scripting
path = /first/second/third/fourth. i want to extract /first/second/third from path.my program something like this ....
path=/first/second/third/fourth
noc=`echo $path|tr '/' '\n'|wc -w`
var='echo $noc|cut -d'/' -f 1-$noc --> is giving error.
why $noc is not working here.any other... (3 Replies)
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4. UNIX Desktop Questions & Answers
Hi, how do I extract the third field of the first line?
I know how to get the first line or the third field of a file, but I can't get the single entry.
awk 'NR==1' file.txt
awk '{print $3}' file.txt
Please tell me how to combine these.
And how do I set this value into a variable?
... (1 Reply)
Discussion started by: etownbetty
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5. UNIX for Dummies Questions & Answers
EDIT: This problem has been solved thanks to the help of scottn.
Okay, so I have a CSV. Let's say it has the following entries in it:
Jackie Chan,1954,M
Chuck Norris,1930,M
Bruce Lee,1940,M
How would I, for example, extract the gender out of a certain person, maybe based on the year of... (12 Replies)
Discussion started by: chickeneaterguy
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6. Shell Programming and Scripting
I have an input file with content like :
18:51:18 | 217863|Acct 0110855565|RC 17608| 16 Subs| 1596 UsgRecs| 2 Secs| 430 CPUms| prmis2:26213 <MoveUsage d
aemon needs to run on this account before it can be billed.>
23:03:30 | 896529|Acct 2063947620|RC 17608| 8 Subs| 148 UsgRecs| ... (9 Replies)
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7. Shell Programming and Scripting
Hi Friends,
Need Help. I have file1.txt as
File1.txt
|123|A|7267|Hyder|Cross|Sell|7801
|995|A|7051|2008|Lunar|New|Year|Promotion|7801
|996|A|7022|Q108|Targ|Prospect|&|SSCC|Savings|Promo|7801
|997|A|7182|Q1|Feb-Apr|08|Credit|ITA|PA|SBA|Campaign|7801
File2.txt... (7 Replies)
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8. Shell Programming and Scripting
Hi Freinds,
I have 2 files . one is source.txt and second one is target.txt. I want to keep source.txt as baseline and compare target.txt. please find the data in 2 files and Expected output.
Source.txt
1|HYD|NAG|TRA|34.5|1234
2|CHE|ESW|DES|36.5|134
3|BAN|MEH|TRA|33.5|234... (5 Replies)
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9. Shell Programming and Scripting
Hi,
I have a file with colon separated values like below. How can i get those lines whose third field is 0 (zero). In the below example, lines starting with stapler and tempo has its third field as 0
$ cat list.txt
galaxy:b:5:world
stapler:a:0:hello
abc:a:4:stomper
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Discussion started by: John K
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10. UNIX for Dummies Questions & Answers
Hi,
For example:
I have:
HostA,XYZ
HostB,XYZ
HostC,ABC
I would like the output to be:
HostA,HostB: XYZ
HostC:ABC
How can I achieve this?
So far what I though of is: (1 Reply)
Discussion started by: alvinoo
1 Replies
LEARN ABOUT REDHAT
ppmtosixel
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)