Sponsored Content
Top Forums Shell Programming and Scripting Perl code to differentiate numeric and non-numeric input Post 302109217 by Raynon on Monday 5th of March 2007 01:16:24 AM
Old 03-05-2007
Hi ,

Below is my Perl code using regular expression. but it doesn;t seem to work.
Can anybody tell me what's wrong with my code ?

Code:
#!/usr/bin/perl

print "Enter a term: ";
$Input = <STDIN>;
print "\n";

if ($input == [0-9]) {
print "$Input is numeric\n";
}
else {
print "$Input is non-numeric\n";
}

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to check for a valid numeric input

Hi Folks, I'm using bash script. I would like to check whether input is a number or not.(Only positive numbers).. if space or non numeric is entered, it should say "invalid input". pls help.. thanks in adv. Br/// Vijay. (1 Reply)
Discussion started by: Vijayakumarpc
1 Replies

2. Shell Programming and Scripting

validating a input file for numeric and character

i have a input file like this 001|rahim|bajaj|20090102 while reading the file i need to check whether the first column is a number second column is a name is there any methodology to check for the same thanks in advance (2 Replies)
Discussion started by: trichyselva
2 Replies

3. Shell Programming and Scripting

Check for Numeric output in Perl

Hi All, I would like to convert my below csh script to Perl. Can any expert help ? # To check for numeric input set tested1 = `echo "$tested"| awk '/^+$/'`; # To remove un-neccessary zeros set tested2 = `echo "$tested"|awk '{print $0+0}'`; (3 Replies)
Discussion started by: Raynon
3 Replies

4. Shell Programming and Scripting

Checking input for being numeric and integers

Hi, I'm trying to check to see that the arguments given to my script are both numeric and positive integers. I'm using tcsh. I figured out the positive part, but I am having trouble with the arguments being numeric and integers I have no idea where to get started with the checking them actually... (1 Reply)
Discussion started by: mistykz
1 Replies

5. UNIX for Dummies Questions & Answers

Find and Replace random numeric value with non-numeric value

Can someone tell me how to change the first column in a very large 17k line file from a random 10 digit numeric value to a non numeric value. The format of lines in the file is: 1702938475,SNU022,201004 the first 10 numbers always begin with 170 (6 Replies)
Discussion started by: Bahf1s
6 Replies

6. Shell Programming and Scripting

Perl script to sort data on second numeric field

Hi, I'm a learner of PERL programming. I've a input file with the below data: SWAT_5, 1703, 2010-09-21 SWAT_6, 2345, 2010-09-21 SWAT_7, 1792, 2010-09-21 SWAT_8, 1662, 2010-09-21 SWAT_9, 1888, 2010-09-21 VXHARP_1, 171, 2010-09-21 I need to sort this data based on the second... (6 Replies)
Discussion started by: ganapati
6 Replies

7. Programming

Perl : Numeric Range Pattern Matching

hi Experts just wondering if you can help me check a number between a specific range if i have an ip address , how can i say the valid number for ip between 1 to 254 something like this if ($ip ) =~ /.../ { } what the pattern i need to type thanks (3 Replies)
Discussion started by: doubando
3 Replies

8. Shell Programming and Scripting

String variable to numeric conversion in perl

Hi guys I am having this strange issue.Well my requirement is like below Compare two values between flat file and oracle DB Via perl script I am easily getting the rowcount Now I connect sql plus via perl and the column value that returns is string my $sqlplus_settings = ''; my... (7 Replies)
Discussion started by: Pratik4891
7 Replies

9. Windows & DOS: Issues & Discussions

Put the numeric validation in user input when value is 5.1.2.3

Hi I need to put the validation in batch script when user will enter the build number it should be numeric.I can put the validation for numeric values but there is .(dot) in number so it would not take it as numeric. Is it possible we can store it in variable and remove the .(dot) from the... (1 Reply)
Discussion started by: anuragpgtgerman
1 Replies

10. Shell Programming and Scripting

Check whether input is numeric

Hello there, find below for my code first: $pdp_asaba=`cat /tmp/temp_total | grep asaba | sed 's/*//g'` if ]] then pdp_asaba=0 fi $pdp_abuja=`cat /tmp/temp_total | grep abuja | sed 's/*//g'` if ]] then pdp_abuja=0 fi $pdp_ojota=`cat /tmp/temp_total | grep ojota | sed 's/*//g'` if ... (3 Replies)
Discussion started by: infinitydon
3 Replies
NUMSUM(1)						User Contributed Perl Documentation						 NUMSUM(1)

NAME
numsum - numsum program file SYNOPSIS
numsum [-iIcdhrsvxy] <FILE> | numsum [-iIcdhrsvxy] (Input on STDIN from pipeline.) numsum [-iIcdhrsvxy] (Input on STDIN. Use Ctrl-D to stop.) DESCRIPTION
numsum will take all the numbers on stdin and return the sum of those numbers. Currently it only processes the first number on each line. Besides positive numbers, it also handles negative numbers and numbers with decimals. OPTIONS
-i Only return the integer portion of the final sum. -I Only return the decimal portion of the final sum. -c Print out the sum of each column. -r Print out the sum of each row. -x <n> Specify a comma seperated list of columns to print. -y <n> Specify a comma seperated list of rows to print. -s <string> Specify a string to use as a seperator for columns. This defaults to be consecutive whitespace (s+). -h Help: You're looking at it. -V Increase verbosity. -d Debug mode. For developers -q Quiet mode, don't print any warnings. EXAMPLES
Simply add up the numbers in a file. $ numsum numbers.txt 4315 Enter your own numbers on STDIN. The last number is the answer. $ numsum 4 21 98 100 223 Use it in a command pipeline. $ ls -1s | grep .mp3 | numsum -c -x 5 72288 Add up the total byte count in a http log file. $ cat access_log | awk {'print $10'} numsum or numsum -c -x 10 access_log Add up the columns of numbers of a file. $ cat columns 1 6 11 16 21 2 7 12 17 22 3 8 13 18 23 4 9 14 19 24 5 10 15 20 25 $ numsum -c columns 15 40 65 90 115 Add up the 1st, 2nd and 5th columns only. $ numsum -c -x 1,2,5 columns 15 40 115 Add up the rows of numbers of a file. $ numsum -r columns 55 60 65 70 75 Add up the 2nd and 4th rows. $ numsum -r -y 2,4 columns 60 70 SEE ALSO
numaverage(1), numbound(1), numinterval(1), numnormalize(1), numgrep(1), numprocess(1), numrandom(1), numrange(1), numround(1) COPYRIGHT
numsum is part of the num-utils package, which is copyrighted by Suso Banderas and released under the GPL license. Please read the COPYING and LICENSE files that came with the num-utils package Developers can read the GOALS file and contact me about providing submitions or help for the project. MORE INFO
More info on numsum can be found at: http://suso.suso.org/programs/num-utils/ perl v5.10.1 2009-10-31 NUMSUM(1)
All times are GMT -4. The time now is 08:00 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy