|
|
Sponsored Content
Top Forums
Shell Programming and Scripting
Perl - maths equation - need help
Post 302288348 by Anuj8584 on Tuesday 17th of February 2009 03:41:20 AM
02-17-2009
|
|
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Heres a script i wrote as a bit of practise. What it does is insert a line in the middle of a file. The line being $1 and the file being $2
#!/bin/bash
rm tempfile
touch tempfile
count=1
linenum= `wc -l < $2`
if
then
echo $1 >> $2
else
even=`expr "$linenum" % 2`
if
then... (3 Replies)
Discussion started by: Quesa
3 Replies
2. UNIX for Dummies Questions & Answers
Hay, guys,
Any ideas how to calculate like this:
in first file, there're number of lines listing 2+3, 6*9 .......
Then, how to get the result and put them in another file in format:
2+3 5
6*9 54
......
sheerly by shell command, no scripts required. (4 Replies)
Discussion started by: robbinGlasses
4 Replies
3. Shell Programming and Scripting
Hi,
Is there a way to evaluate an equation contained in a string within an AWK script?
For example:
A = "(5*2)-1" (this equation is read from a file and varies line by line)
In this example, I can't see any way to get an answer of 9 unless I do:
cmd = "awk 'BEGIN{print "A"}'"
cmd |... (3 Replies)
Discussion started by: srdgeo
3 Replies
4. Shell Programming and Scripting
Hello,
I'm trying to write a while loop for a decimal value in tcsh which I know can't be done. Instead I want my increments to be one order of magnitude too large and then divide it by 10 when I use the variable. However, I don't know how to divide my variable and set it as another.
set... (1 Reply)
Discussion started by: DFr0st
1 Replies
5. High Performance Computing
I'm running a MPI program using a cluster of 4 machines(different machines of different processing power,cpu utilization etc.). I'm trying to balance the computation among the machine to get the minimum execution time for that. I tried to balance it by creating a threshold value by taking the load... (1 Reply)
Discussion started by: chamila1986
1 Replies
6. Shell Programming and Scripting
Hi All
I've made a few scripts which using GDAL extract the value of a pixel within a given raster. The purpose is to work out the combine value of every pixel. I thought there may have been an easier way to do this but alas!
The code below extracts the pixel value at position X Y. The... (3 Replies)
Discussion started by: StudentFitz
3 Replies
7. Shell Programming and Scripting
Hi, I am trying to make a maths calculator that:
1. Prompts the user for a number.
2. Prompts the user for an operation (add, subtract, divide or multiply)
3. Prompts the user for a number.
4. Prompts the user for another operation (same as above) OR the option to get the result for the... (4 Replies)
Discussion started by: johnthebaptist
4 Replies
8. Shell Programming and Scripting
Hi,
Need help on this. I need to increment a variable by 1 but retain as 2 characters.
I am using expr to do additions:
NEWSERIAL=`expr $SERIAL + 1`
$SERIAL can range from 01-99. After adding "1", I need the result to be 2 characters, eg: 02+1 = 03. By default expr will truncate the... (4 Replies)
Discussion started by: vchee
4 Replies
9. Shell Programming and Scripting
HI All,
I have a script in bash that i want that script will perform action
When the size of a particular folder exceeds the 80%.
Here is an example of script that result is exactly 80% :
#!/bin/bash
CHECK=$(df -h /var/log/syslog | grep '80%' | xargs echo | cut -d' ' -f5)
if ];... (1 Reply)
Discussion started by: Aviel.shani
1 Replies
10. Shell Programming and Scripting
Hi guys...
I am loving this integer maths thing.
64 bit systems are certainly easier than 32 bit, but hey, I don't intend to leave out my fav' platform.
Using one of the 'Brothers' methods, URL inside the code.
#!/bin/sh
#
# #!/usr/local/bin/dash
# e_constant.sh
# Brother's formula .
#... (2 Replies)
Discussion started by: wisecracker
2 Replies
LEARN ABOUT DEBIAN
pacparser_init
pacparser_init(3) Library Functions Manual pacparser_init(3) NAME
pacparser_init - Initializes pac parser SYNOPSIS
#include <pacparser.h> int pacparser_init(void); DESCRIPTION
It initializes JavaScript engine and does few basic initializations specific to pacparser. RETURNS
0 on failure and 1 on success. SEE ALSO
pacparser_version(3), pacparser_parse_pac_file(3), pacparser_parse_pac_string(3), pacparser_parse_pac(3), pacparser_find_proxy(3), pac- parser_just_find_proxy(3), pacparser_cleanup(3), pacparser_setmyip(3), pacparser_enable_microsoft_extensions(3) c2man pacparser.h 14 March 2011 pacparser_init(3)