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Full Discussion: string checking
Top Forums Shell Programming and Scripting string checking Post 302210891 by gaurav123 on Wednesday 2nd of July 2008 07:47:52 AM
Old 07-02-2008
for checking numeric values use:

-eq equal to
-ne not equal to
-lt less than
-le less than or equal to
-gt greater than
-ge greater than or equal to


for string comparison use:

>
<
==
!=
=

for regex use:

[[

]]

let me know if u hav any confusion.
 

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STRCOLL(3)						     Linux Programmer's Manual							STRCOLL(3)

NAME
strcoll - compare two strings using the current locale SYNOPSIS
#include <string.h> int strcoll(const char *s1, const char *s2); DESCRIPTION
The strcoll() function compares the two strings s1 and s2. It returns an integer less than, equal to, or greater than zero if s1 is found, respectively, to be less than, to match, or be greater than s2. The comparison is based on strings interpreted as appropriate for the pro- gram's current locale for category LC_COLLATE. (See setlocale(3)). RETURN VALUE
The strcoll() function returns an integer less than, equal to, or greater than zero if s1 is found, respectively, to be less than, to match, or be greater than s2, when both are interpreted as appropriate for the current locale. CONFORMING TO
SVID 3, BSD 4.3, ISO 9899 NOTES
In the "POSIX" or "C" locales strcoll() is equivalent to strcmp(). SEE ALSO
bcmp(3), memcmp(3), strcasecmp(3), strcmp(3), strxfrm(3), setlocale(3) GNU
1993-04-12 STRCOLL(3)
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