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Full Discussion: Read Variable From Fille And Convert it to Integer
Top Forums Shell Programming and Scripting Read Variable From Fille And Convert it to Integer Post 302529406 by gary_w on Thursday 9th of June 2011 09:31:44 AM
Old 06-09-2011
Works for me
Code:
#!/bin/sh

file="inputfile.txt"

while IFS='|' read fullname spacename startnumber
do
echo "$fullname  $spacename  $startnumber"

if [ "$startnumber" -le 9 ];then
  echo "startnumber is less than or equal to 9"
fi
done < $file

exit 0

Output:
Code:
$ test
FileName1  File Extension 1  3
startnumber is less than or equal to 9
FileName2  File Extension 2  100
FileName3  File Extension 3  545

$

Of course you need some error handling and data validating. If you are expecting a number for comparison you should test to be sure its a number first. Also beware of "magic numbers" (the number 9 in the test. What is 9, a count, a range, a code for something else?). Make a variable for 9 at the top with a meaningful name, so if it ever has to change you only have one place to edit, plus the meaningful name makes the code easier to understand and maintain for the guy after you:
Code:
#!/bin/sh
WARNSTARTNUMBER=9    # Print warning if startnumber is <= this value.
file="inputfile.txt"

while IFS='|' read fullname spacename startnumber
do
echo "$fullname  $spacename  $startnumber"

if [ "$startnumber" -le $WARNSTARTNUMBER ];then
  echo "startnumber is less than or equal to $WARNSTARTNUMBER"
fi
done < $file

exit 0

Last edited by gary_w; 06-09-2011 at 11:06 AM..
This User Gave Thanks to gary_w For This Post:
marios
 

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LEARN ABOUT MOJAVE

locale::codes::langext

Locale::Codes::LangExt(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangExt(3pm)

NAME

       Locale::Codes::LangExt - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangExt;

	  $lext = code2langext('acm');		       # $lext gets 'Mesopotamian Arabic'
	  $code = langext2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langext_codes();
	  @names   = all_langext_names();

DESCRIPTION

       The "Locale::Codes::LangExt" module provides access to standard codes used for identifying language extensions, such as those as defined in
       the IANA language registry.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default IANA language
       registry codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language extensions. A code set may be specified using either a name, or
       a constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langext('acm','alpha');
	  $lext = code2langext('acm',LOCALE_LANGEXT_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from the IANA language registry, such as 'acm' for Mesopotamian Arabic.

	   This is the default code set.

ROUTINES

       code2langext ( CODE [,CODESET] )
       langext2code ( NAME [,CODESET] )
       langext_code2code ( CODE ,CODESET ,CODESET2 )
       all_langext_codes ( [CODESET] )
       all_langext_names ( [CODESET] )
       Locale::Codes::LangExt::rename_langext  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangExt::add_langext  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangExt::delete_langext  ( CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangExt::delete_langext_alias  ( NAME )
       Locale::Codes::LangExt::rename_langext_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::delete_langext_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.iana.org/assignments/language-subtag-registry
	   The IANA language subtag registry.

AUTHOR

       See Locale::Codes for full author history.

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

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

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

perl v5.18.2							    2013-11-04					       Locale::Codes::LangExt(3pm)
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