10-15-2010
Quote:
awk 'END{printf ("%d\n", NR)}' yourfile
Brilliant. Took 37 seconds for 5 million 80-character records.
Let's see how the O/P gets on.
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1. Shell Programming and Scripting
I have to implement switches (options) like this in my script.
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getopts allows switches to have one character (like a, b, etc.). How can I customize it for handling the above situation? Or, is there any alternative to... (3 Replies)
Discussion started by: krishmaths
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2. Shell Programming and Scripting
i=1
while
do
mm=02
dd=03
yy=2008
echo "$mm$dd$yy"
i=$(( i+1))
echo "$i"
done
whenever i execute the script above i will get the error below:
syntax error at line 30: `i=$' unexpected (3 Replies)
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3. Shell Programming and Scripting
I have a perl script that just does a `du -sk -x` and formats it to look groovy ( the argument can be a directory but usually is like /usr/local/* )
#!/usr/bin/perl
use strict;
use warnings;
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for(split... (1 Reply)
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4. HP-UX
Hello to all board members!!
I have a problem on a HP-UX system. I should write a script. Therefore I need to search after IP addresses in the output of a command.
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5. Shell Programming and Scripting
Hi Folks...
Is there an alternative for ikecert(SunOS) - man info - "manipulates the machine's on-filesystem public-key certificate databases" in linux?
Can we use pkcs7, pkcs8 or something like that?...
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I have an automated testing script that relies on the dev box being able to see production's (NFS) share. It uses rsync and ssh to handle transfers and command execution; however, it also needs the production share mounted in order to run Perl code against it when Unix commands via ssh will not do.... (2 Replies)
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7. Solaris
Is there any other editor, installed by 'default' in Sparc Solaris10, besides vi?
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thanks. (8 Replies)
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8. Shell Programming and Scripting
I've created quite a collection of tcl scripts which have buttons, radio buttons, check boxes, text fields, etc. These tcl scripts in turn call and execute several hundred sh, csh, bash, perl scripts and pass in the args based on the gui selections on the same and other redhat machines. We're... (4 Replies)
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LEARN ABOUT REDHAT
ppmtopgm
ppmtopgm(1) General Commands Manual ppmtopgm(1)
NAME
ppmtopgm - convert a portable pixmap into a portable graymap
SYNOPSIS
ppmtopgm [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces a portable graymap as output. The output is a "black and white" rendering of the original
image, as in a black and white photograph. The quantization formula used is .299 r + .587 g + .114 b.
Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any ppm program can
read pgm (and pbm ) files automatically. pgmtoppm is for colorizing a pgm file. Also, see ppmtorgb3 for a different way of converting
color to gray. And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate the original
colors, not necessarily a way that looks like a black and white photograph.
QUOTE
Cold-hearted orb that rules the night
Removes the colors from our sight
Red is gray, and yellow white
But we decide which is right
And which is a quantization error.
SEE ALSO
pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)
AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
10 April 2000 ppmtopgm(1)