Hi Guys/Gals,
I have a log file that is updated once every few seconds and I am looking for a way to speed up one of my scripts.
Basically what I am trying to do is grep through a text file from start to finish once. Then each subsequent grep starts at the last line of the previous grep to... (4 Replies)
Hey Fellas.
I am new to scripting. I have searched through the forums and found a lot of good info, but I can't seem to get any of it to work together. I am trying to find a particular sting in a file, and if the next string matches certain criteria, replace it with a string from a csv... (6 Replies)
Hi
I have below script which is used to grep specific errors and if error string matches send an email alert.
Script is working fine , however , i wish to print next 10 lines of the string match to get the details of error in the email alert
Current code:-
#!/bin/bash
tail -Fn0 --retry... (2 Replies)
I need to remove double quoted strings from specific lines in a file. The specific line numbers are a variable. For example, line 5 of the file contains
A B C "string"
I want to remove "string". The following sed command works:
sed '5 s/\"*\"//' $file
If there are multiple... (2 Replies)
I have a directory of files, each with a variable (though small) number of lines. I would like to go through each line in each file, and print the:
-file name
-line number
-number of matches to the pattern /comp/ for each line.
Two example files:
cat... (4 Replies)
Hi All,
I have a file testarun.txt contains the below lines and i want to print the lines if the character positions 7-8 matches 01.
201401011111
201401022222
201402013333
201402024444
201403015555
201403026666
201404017777
201404028888
201405019999
201405020000
I am trying the... (4 Replies)
Hello
Take this file...
Test01
Ref test
Version 01
Test02
Ref test
Version 02
Test66
Ref test
Version 66
Test99
Ref test
Version 99
I want to substitute every occurrence of Test{2} with a unique random number, so for example, if I was using sed, substitution would be something... (1 Reply)
I have a list of value , and need to replace that in my file.
Eg:
File1
tcname:fail
tcname: Pass
tcname:skipped
File2:
01,02,03
Output:
File 1
01:fail
02: Pass
03:Skipped (8 Replies)
Discussion started by: DevAakash
8 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)