Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Check if the value is Number
Top Forums Shell Programming and Scripting Check if the value is Number Post 302435998 by clx on Thursday 8th of July 2010 11:57:02 PM
Old 07-09-2010
Quote:
Originally Posted by Franklin52
Not only a zero but all the values with one number (0-9) gives an error, + matches at least 1 or more numbers:
Code:
^[0-9]+

Yes, It wasn't a good try. Thank you for pointing.

@ashwin3086: regarding the explanation of the regular expression, I was looking for "single or more digit followed by optional dot, followed by single or more digit."

So, you can see with the description, that at least two digit must occur to satisfy the condition.

@Franklin52: to be specific, do you think the following would work?

Code:
awk '$1 !~ /^[0-9]+\.?[0-9]*$/ {print "Error in field 1|" $0}'

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Check if variable is a number

If I have a variable $X, how do I check it is a number? Many thanks. (2 Replies)
Discussion started by: handak9
2 Replies

2. Shell Programming and Scripting

How to check whether a string is number or not

Hi , I am facing a problem .. which looks simple... but took 2 days of mine.. even now it is not solved completely.. I have one variable..., want to know whether that variable contains number... canbe +ve or -ve ... Values +35 --- number -43 --- number 45A -- non number... (12 Replies)
Discussion started by: shihabvk
12 Replies

3. Shell Programming and Scripting

number check in perl

Hi,, this is returning true in all cases..( other than 10 dig number also) what could be wrong?? (2 Replies)
Discussion started by: shellwell
2 Replies

4. Shell Programming and Scripting

check number of character

hi, I would like to calculate number of character for a number, for exemple : 1200 --> there are 4 characters , 120001 -> 5 characters (4 Replies)
Discussion started by: francis_tom
4 Replies

5. Shell Programming and Scripting

To check a word is number or not

Hi, I have one file like 00123. And this file name is generated as a sequence. So how can I confirm the generated file name is a number, not a special character or alphabets. Can anybody help me out. Thanks in advance. (3 Replies)
Discussion started by: Kattoor
3 Replies

6. Shell Programming and Scripting

TCSH Check if number is even

Hey, I am trying to check if an integer is even in a tcsh script This is what I am running now set lattest = ` echo $latmin "%2" | bc -l ` echo $lattest if ( $lattest == 0 ) then echo "min is already even" else if ( $lattest =! 0 ) then set latmin = ` echo $latmin "+1" |... (2 Replies)
Discussion started by: travish12
2 Replies

7. Shell Programming and Scripting

Check params for number

I have 2 and three params, both I should make sure thay numbers at one single line insted of checking for each one . Example I wroote the following way.. checking for 2 and three seperately but I shud be able to do it at on statement echo $2 | egrep '^+$' >/dev/null 2>&1 if ; then echo... (2 Replies)
Discussion started by: raopatwari
2 Replies

8. Shell Programming and Scripting

number of instance check

Hi, We are getting a curios result in one of AIX script. Its executed using !/bin/ksh . After following line we get result of 3 in in the variable instance_count. instance_count=`ps -ef | grep "script_check_instances.sh" | grep -v "grep" | wc -l` But once we do a "ps -aef | grep... (2 Replies)
Discussion started by: niba
2 Replies

9. Shell Programming and Scripting

How to check number of group of file.?

Hi Gurus, I need check existing number of file based on the list in file list. for example: in my file list. I have below: abc, file1.txt abc, file2.txt abc, file3.txt abc, file4.txt cde, filea1.txt cde, filea2.txt cde, filea3.txt ... in my current file direcotry, I have file:... (0 Replies)
Discussion started by: ken6503
0 Replies

10. UNIX for Dummies Questions & Answers

How to check if a number exists?

Hello, May i please know how do i check if the given input argument is one of the listed numbers then success else failure. I am using bash shell. if then echo "success" else echo "failure" fi Thank you. (2 Replies)
Discussion started by: Ariean
2 Replies

LEARN ABOUT DEBIAN

locale::script

Locale::Script(3perl)					 Perl Programmers Reference Guide				     Locale::Script(3perl)

NAME

       Locale::Script - standard codes for script identification

SYNOPSIS

	  use Locale::Script;

	  $script  = code2script('phnx');		      # 'Phoenician'
	  $code    = script2code('Phoenician'); 	      # 'Phnx'
	  $code    = script2code('Phoenician',
				 LOCALE_CODE_NUMERIC);	      # 115

	  @codes   = all_script_codes();
	  @scripts = all_script_names();

DESCRIPTION

       The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924
       four-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying scripts. The ones currently supported are:

       alpha
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_ALPHA".

	   The Zxxx, Zyyy, and Zzzz codes are not used.

	   This is the default code set.

       numeric
	   This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_NUMERIC".

ROUTINES

       code2script ( CODE [,CODESET] )
       script2code ( NAME [,CODESET] )
       script_code2code ( CODE ,CODESET ,CODESET2 )
       all_script_codes ( [CODESET] )
       all_script_names ( [CODESET] )
       Locale::Script::rename_script  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Script::add_script  ( CODE ,NAME [,CODESET] )
       Locale::Script::delete_script  ( CODE [,CODESET] )
       Locale::Script::add_script_alias  ( NAME ,NEW_NAME )
       Locale::Script::delete_script_alias  ( NAME )
       Locale::Script::rename_script_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::add_script_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::delete_script_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.unicode.org/iso15924/
	   Home page for ISO 15924.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

       This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

perl v5.14.2							    2011-09-26						     Locale::Script(3perl)
All times are GMT -4. The time now is 07:49 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy