06-09-2010
Last edited by jimmy_y; 06-09-2010 at 02:02 AM..
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Strange behaviour of the strftime() function from gawk (3.1.5):
$ awk 'BEGIN{print strftime("%T", 3600)}'
> 02:00:00
$ awk 'BEGIN{print strftime("%T", 0)}'
> 01:00:00
Obviously something with DST but I can not figure out why? To me 3600 epoch seconds remains 01:00, DST or not.
From... (2 Replies)
Discussion started by: ripat
2 Replies
2. Shell Programming and Scripting
Hello,
I really would appreciate some help with a bash script for some string manipulation on an SQL dump:
I'd like to be able to rename "sites/WHATEVER/files" to "sites/SOMETHINGELSE/files" within the sql dump.
This is quite easy with sed:
sed -e... (1 Reply)
Discussion started by: otrotipo
1 Replies
3. Shell Programming and Scripting
Thanks for giving your time and effort to answer questions and helping newbies like me understand awk.
I have a huge file, millions of lines, so perl takes quite a bit of time, I'd like to convert these perl one liners to awk.
Basically I'd like all lines with ISA sandwiched between... (9 Replies)
Discussion started by: verge
9 Replies
4. Programming
HI,
i wish to convert a millsec value to a readable string format.
the one option is to use strftime.
However this is a bit costly (1-5 micros).
is there a a faster way to do so with just string manipulation
(Note i have the date object which has the time details but wish o avoid strftime) (2 Replies)
Discussion started by: wojtyla
2 Replies
5. Shell Programming and Scripting
hello,
I want to replace awk with a perl one liner in unix.
i use in awk REGEX and FS ( field separator) because
awk syntaxes in different unix os versions have not the same behaviour.
Awk, Nawk and GNU Awk Cheat Sheet - good coders code, great reuse
i have a file named "file" and want... (5 Replies)
Discussion started by: bora99
5 Replies
6. Shell Programming and Scripting
Hi
I know sed and awk has options to give range of line numbers, but
I need to replace pattern in specific lines
Something like
sed -e '1s,14s,26s/pattern/new pattern/' file name
Can somebody help me in this....
I am fine with see/awk/perl
Thank you in advance (9 Replies)
Discussion started by: dani777
9 Replies
7. Shell Programming and Scripting
cat file
41285.000034722223 41285.000567129631
41285.000069444446 41285.001122685186
41285.000092592592 41285.001620370371
41285.000138888892 41285.00340277778
41285.000185185185 41285.000405092593
41285.000196759262 41285.000856481478
41285.000208333331 41285.000717592593... (5 Replies)
Discussion started by: phpshell
5 Replies
8. Shell Programming and Scripting
I'm trying to use AWK to filter on some dates in a field by converting them to Unix Time.
mktime(strftime(format,"6-FEB-2013 08:50:03.841")What is the proper format for my date strings as they appear in my database?
My first thought is %d-%b-%Y %H:%M:%Sbut I see the following issues:
%d is... (3 Replies)
Discussion started by: Michael Stora
3 Replies
9. Shell Programming and Scripting
I have a lines like below, captured from rrdtool fetch command,
1395295200 2.0629986254e+06 7.4634784967e+05
1395297000 2.0198121616e+06 6.8658888903e+05
1395298800 1.8787141122e+06 6.7482866452e+05
1395300600 1.7586118678e+06 6.7867977653e+05
1395302400 1.8222762151e+06 7.1301678859e+05I'm... (3 Replies)
Discussion started by: rk4k
3 Replies
10. Shell Programming and Scripting
My code below will print only the email address from all lines. I want to convert it with sed or awk.. also what if i just want to find only filenames.
cat LIS_EMAIL | perl -wne'while(/+@+\w+/g){print "$&\n"}'
Hoping to extract the filename such us .exe, .bin. From file that has scrambled... (8 Replies)
Discussion started by: invinzin21
8 Replies
LEARN ABOUT OPENSOLARIS
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)