I need to assign a variable within a variable in a sed command.
I tried doing the following in c shell.
set left = 1
set right = 2
set segment = qwerty
sed -n -e "/$segment{$left}/,/$segment{$right}/p" file.txt
what is wrong with this syntax? (3 Replies)
I am trying to write a simple script which will take a variable with sed to take a line out of a text and display it
#!/bin/sh
exec 3<list
while read list<&3
do
echo $list
sed -n '$list p'<list2
done
this does not work, yet when I replace the $list variable from the sed command and... (1 Reply)
Hi All,
I am trying to use a sed command in a shell script in order to delete some lines in a file and I got the following error message.
I don't understand why it is not working 'cause I have tried with simple quotes, then with double-quotes, and it is not working.
sed: -e expression #1,... (7 Replies)
Hello all,
I am very new to the shell scripting and I hope someone can help me with this.
I have thousands of files with certain format of information and I need to do this for all my files.
For each file, grab the numbers in the first and second rows and place them in the position 1 and 2... (8 Replies)
Hi all,
I want write a script to display 5rows at times from a input file.
my out like:
echo " display started"
r1
r2
r3
r4
r5
... Some action items...
again i need next 5 lines.
can you please advise. (2 Replies)
hi All,
i want to add the single digit front of the line in the report file and string compare with pattern file.
patter file: pattern1.txt
pattern num
like 4
love 3
john 2
report file: report.txt
i like very much
but john is good boy
i will love u
so after execute... (9 Replies)
Hi All,
I need to frame a unix script to logon to a unix box. The credentials needs to be obtained from a property file on the same location.
I am trying to use 'expect' and 'spawn' command to meet this req.
When I am passing values, these commands are working fine. but when I am trying to... (3 Replies)
Hello,
I have a file that I want to be able to insert a new line before every instance of a regex. I can get it to do this for each line that contains the regex, but not for each instance.
Contents of infile:
Test this 1...
Test this 2...
Test this 3... Test this 4... Test this... (2 Replies)
Hi,
I have a file a.xml containing the below
<customerId>000</customerId>
and a variable CUSTOMER_ID which is set to '333'
Now I want to replace <customerId>000</customerId> with <customerId>333</customerId> by the below sed command and save the output in a file b.xml:
sed... (3 Replies)
Hi,
Iam a newbie to SED. I'm faced with a problem as described.
Given the file with text
1 rwerwerwe rere
2 fdfefefe fsdfds
3 rerere ffff trtrt
4 aaaa 1234 asadsdsd
5 hfjfjfjsjfsf... (14 Replies)
Discussion started by: SShinde
14 Replies
LEARN ABOUT MINIX
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)