The \b escape pattern doesn't work in my version of awk. I prefer match() to the ~ syntax, but either should work:
Note that the leading ^.* and trailing .*$ are unneeded. The leading space imples that none of these words can be at the beginning of the line, while the trailing space imples that they may not be the last word on the line. If you need either change to something like:
to indicate that zero or more space characters may precede/follow the word.
I have written a script to test some isdn links in my network and I am trying to format the output to be more readable. Each line of the output has a different number of digits as follows...
Sitename , spid1 12345678901234 1234567890 1234567 , spid2 1234567890 1234567890 1234567
Sitename , ... (1 Reply)
following file is taken as input
aaa bbb ccc
ddd eee ffff
grep -w aaa <filename> gives proper output.
grep \<\(aaa\).*\> filename :- should give output, since aaa is at begining, however i dosen't get any ouput.
Any discrepancy.
machine details:-
Linux anaconda... (1 Reply)
I am trying to read a file and capture particular lines into different strings:
LENGTH: Some Content here
TEXT: Some Content Here
COMMENT: Some Content Here
I want to be able to get (LENGTH: .... ) into one array and so on... I'm trying to use PERL in slurp mode but for some reason... (8 Replies)
Hi guys,
as per subject I am having problem with regular expressions.
Example, if i got a string "javax.servlet.http.HttpServlet.service" that may occurred anywhere within a text file.
How can I used the negate pattern matching of regular expression?
I tried the below pattern but it... (4 Replies)
In Perl I can write a condition that evaluates a match expression like this:
if ($foo =~ /^bar/) {
do blah blah blah
}
How do I write this in shell? What I need to know is what operator do I use? The '=~' doesn't seem to fit. I've tried different operators, I browsed the man page for... (3 Replies)
hi,
I need to replace all these lines from my text file
123end
234end
324end
234end
989end
258end
924end
At the moment I know how to replace "end". But I want to replace the numbers before end as well. How can I do this ?
sed s/end/newWord/ myfile.txt newFile.txt
thanks (3 Replies)
Hi,
I have a variable in my script that gets its value from a procstack output. It could be a number of any length, or it could just be a '1' with 0 or more white spaces around it. I would like to detect when this variable is just a 1 and not a 1234, for example. This is as far as I got:
... (3 Replies)
I trying to match the begining of the following line in a perl script with a regular expression.
$ENV{'ORACLE_HOME'}
I tried this regluar expession:
/\$ENV\{\'ORACLE_HOME\'\}/
Instead of match, I got a blank prompt >
It seems to be a problem with the single quote. If I take it... (11 Replies)
Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
open DESTINATION_FILE, "<tmptravl.dat" or die "tmptravl.dat";
open NEW_DESTINATION_FILE, ">new_tmptravl.dat" or die "new_tmptravl.dat";
while (<DESTINATION_FILE>)
{
# print... (1 Reply)
I have a very large file (over 700 million lines) that has some lines that I need to delete. An example of 5 lines of the file:
HS4_80:8:2303:19153:193032 153 k80:138891
HS4_80:8:2105:5544:43174 89 k88:81949
165 k88:81949 323 0 * = 323 0 ... (6 Replies)
Discussion started by: pathunkathunk
6 Replies
LEARN ABOUT LINUX
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)