10-01-2008
But a new problem arose, how do i deal with numbers in Bourne Shell (sh)?
numFiles=ls $file | wc -l
echo "Number of files is $numFiles"
The above doesnt work, always displays 0 even though when I test just using
ls . | wc -l
it shows 26
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
How can I determine what UNIX thinks the record size of any given file is?? (1 Reply)
Discussion started by: jbrubaker
1 Replies
2. UNIX for Dummies Questions & Answers
Hello,
I'm attempting to modify a script so it can be executed via a batch scheduler. Part of the script calls a program called direct (which I believe may have something to do with Connect Direct). I have tried cat and vi on the file; cat returns absolute gibberish, vi states the file is... (2 Replies)
Discussion started by: JWilliams
2 Replies
3. Shell Programming and Scripting
hi, I want to determine the position of specific values over a cutoff.
So I have a string of values that are mainly negative in number and I want to print the rare few that are positive. Specifically I want to know the position of the value along the string. The position is based from right to... (11 Replies)
Discussion started by: phil_heath
11 Replies
4. Programming
Stupid question, but is there an ANSI C stdlib function that will do this for me? I want to pass the function a path and determine if the current process can read/write/execute on the path. I suppose I can whip something up using fstat and then determining the current process's user/group IDs and... (6 Replies)
Discussion started by: DreamWarrior
6 Replies
5. Programming
Is there a way to determine the "Instruction Pointer" of a function in c++, and if so can someone tell me? (5 Replies)
Discussion started by: neur0n
5 Replies
6. Programming
Hi,
I am trying with the following code to retrieve the runlevel of my Linux Ubuntu 8.04 system by reading the "utmp" database. But I am getting blank output. May I know what correction I should do inorder to make this program to work?
#include <stdio.h>
#include <stdlib.h>
#include... (1 Reply)
Discussion started by: royalibrahim
1 Replies
7. UNIX for Advanced & Expert Users
Hi all,
When I use an editor (vi) that is spawned in a remote server, visually I could see the latency between typing a character/word and being displayed on the terminal. I could see this visually but how do I get a metric on this or how to quantify this?
As expected, when I type in a editor... (6 Replies)
Discussion started by: matrixmadhan
6 Replies
8. UNIX for Dummies Questions & Answers
Hello,
I have a flat file with a list of files with the path to the file and I am attempting to calculate the filesize for each one; however xargs isn't playing nicely and I am sure there is probably a better way of doing this.
What I envisioned is this:
cat filename|xargs -i ls -l {} |awk... (4 Replies)
Discussion started by: joe8mofo
4 Replies
9. Shell Programming and Scripting
Hi,
I was hoping someone could suggest an alternative to code I currently have as mine takes up far too much processor time and it to slow.
The situation:
I have a programme that runs on some files just before they are zipped up and archived, the program appends a one line summary of the... (4 Replies)
Discussion started by: RECrerar
4 Replies
10. Linux
I've been looking online trying to find the correct value nice and priority can take in the limits.conf file. ON the man page it says;
Does this mean priority can be any negative number and any positive?
Then
Does this mean any number between -20 and 19 also what does the definition of nice... (13 Replies)
Discussion started by: matthewfs
13 Replies
LEARN ABOUT OSX
number::compare
Number::Compare(3) User Contributed Perl Documentation Number::Compare(3)
NAME
Number::Compare - numeric comparisons
SYNOPSIS
Number::Compare->new(">1Ki")->test(1025); # is 1025 > 1024
my $c = Number::Compare->new(">1M");
$c->(1_200_000); # slightly terser invocation
DESCRIPTION
Number::Compare compiles a simple comparison to an anonymous subroutine, which you can call with a value to be tested again.
Now this would be very pointless, if Number::Compare didn't understand magnitudes.
The target value may use magnitudes of kilobytes ("k", "ki"), megabytes ("m", "mi"), or gigabytes ("g", "gi"). Those suffixed with an "i"
use the appropriate 2**n version in accordance with the IEC standard: http://physics.nist.gov/cuu/Units/binary.html
METHODS
->new( $test )
Returns a new object that compares the specified test.
->test( $value )
A longhanded version of $compare->( $value ). Predates blessed subroutine reference implementation.
->parse_to_perl( $test )
Returns a perl code fragment equivalent to the test.
AUTHOR
Richard Clamp <richardc@unixbeard.net>
COPYRIGHT
Copyright (C) 2002,2011 Richard Clamp. All Rights Reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
SEE ALSO
http://physics.nist.gov/cuu/Units/binary.html
perl v5.16.2 2011-09-21 Number::Compare(3)