Hi,
I have a program that searches for a particular string patten. I am however having difficulty passing the varible $i (in a loop) as the string pattern to replace. Using either perl or sed search and replace statements, I get the same kinda result. For example, using the perl:
for i in... (3 Replies)
I have lines in a file that look like this:
machine: machinea
machine: machineb
machine: randomwhatevermachine
I want to replace the machine lines with:
machine: machinec
I tried
perl -pi -e "s/#machine:\?*/machine: machinec/" filename
But this ended up doing this:
... (2 Replies)
Hi ,
I am stuck up in the below scenario:-
I need to read a file name (eg A.txt) name frm another file (eg B.txt) and then I need to search for a particular expression in A.txt and substitute it with another expression.
How can I use SED inside SHELL Scripting and command prompt as... (2 Replies)
Hi guys,
Can u please help me to replace (-) with (/) in a file containing no of records using "sed " command in unix.
thanks in advance.
subhendu (5 Replies)
I have file.txt
1 4 7 9 3
I want to replace the tabs with a space, but my code doesn't work.
cat file.txt | sed 's/"\t"/ /g' > t.txt
But file is still the same. Numbers seperated by tabs instead of spaces.
Help? (2 Replies)
Using sed I'm trying to replace 'string' with ']' while retaining case and ignoring words with 'string' in it along with additional characters like 'strings' and those which already contain the ] wrapper. I'm hoping to do it with sed and the right expression, if possible.
Example:
Apple... (2 Replies)
Hi All,
I need the perl version of the below sed command:
sed 's/abc.*/&.txt/g' <filename>
Because I'm trying to do some replacement recursively using perl and the above replacement is replacing the abc* with "&.txt" exactly.
Thanks,
Arun (9 Replies)
Hello all
I have a strings like
" Watch news 24x7 "."x-wars is glowing"
" Watch news like 24 x 7"."x-mas will be celebrated"
" Dimensions of box is 24x23x47 ".
I have to remove the x(by) in between the number. If i just replace x, it will also remove all x's from text which i do not want.... (1 Reply)
Hi,
I'm new to Perl, and I want to change a few columns in a file in order to insert them into a database.
The input file looks like this:
00001,"01/1234567" ,"Tst2"
00002,"01/4545646" ,"Tst123456"
00003,"01/8979898" ,""
The output should look like this:
01-1234567,00001... (2 Replies)
OSX
I have been grinding my teeth on a portion of code. I am building a bash script that edits a html email template. In the template, I have place holders for SED (or whatever program is appropriate) to use as anchors for find and replace, with user defined corresponding html code. The HTML code... (3 Replies)
Discussion started by: sudo
3 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)