im having trouble doing this:
i have a variable with 2 characters repeating e.g. aababbbaaaababaabbaabbba
is there a way i can search the variable for a's and b's and then change a's to b's and b's to a's?
im guessing its like getting the 1's compliment of the string
im doing this in... (2 Replies)
Greetings,
I am doing something that I don't know if it is possible...
I have a file with a line looks like this:
<%s \n%s / %s \n%s \n>
and I am trying to replace this line with
<%s \n%s \n%s / %s \n%s \n>
in Shell script with sed command...
StringToReplace='%s \n%s / %s \n%s \n'... (2 Replies)
I need to do the following:
text in the format of: ADDRESS=abcd123:1111
- abcd123:1111 is different on every system.
replace with: ADDRESS=localhost:2222
sed 's/ADDRESS=<What do I use here?>/ADDRESS=localhost:2222/g'
Everything I've tried ends up with:
... (3 Replies)
How can I replace the follong text including to number 7000?
cat tmp0.txt
Winston (UK) Wong
I would the 7000 to replace Winston (UK) Wong.
I fail with method below:
sed ' s /Winston\(UK\)Wong/7000 tmp0.txt' (1 Reply)
Hi All,
I have a text file that contains
I1SP2 *=*=Y=M=D001D
My requirement is to replace all occurrence of =* to =Z
expected o/p is I1SP2 *=Z=Y=M=D001D
I have tried with
sed 's/=*/=Z/g' file
sed 's!\=*!\=Z/g' file
sed 's!\=*!\=Z!g' file
sed 's!\=\*!\=Z!g' file
but its not... (3 Replies)
Hi all
I got test.test.test and need
test.test\.test *
I need the backslash before the last dot in the line
I tried
echo test.test.test | sed 's/\./\\./g'
but it gives me
test\.test\.test
Thanks (7 Replies)
Hi Gurus,
I have a requirement which needs to pass a parameter when calling the script, using this parameter to find a file name stored in master file. then read the file content. the issue is in the file name has a special character "$". don't know how to handle this. below is example:
the... (10 Replies)
hi all,
i'd like to modify a file with sed , i want to substuite a char "-" with "/"
how can i do this?
Thanks for all
regards
Francesco (16 Replies)
Discussion started by: Francesco_IT
16 Replies
LEARN ABOUT V7
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)