strnicmp(9) [centos man page]

STRNICMP(9)						     Basic C Library Functions						       STRNICMP(9)

NAME

       strnicmp - Case insensitive, length-limited string comparison

SYNOPSIS

       int strnicmp(const char * s1, const char * s2, size_t len);

ARGUMENTS

       s1
	   One string

       s2
	   The other string

       len
	   the maximum number of characters to compare

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							       STRNICMP(9)

STRCASECMP(3)						   BSD Library Functions Manual 					     STRCASECMP(3)

NAME

     strcasecmp, strncasecmp -- compare strings, ignoring case

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <strings.h>

     int
     strcasecmp(const char *s1, const char *s2);

     int
     strncasecmp(const char *s1, const char *s2, size_t len);

DESCRIPTION

     The strcasecmp() and strncasecmp() functions compare the nul-terminated strings s1 and s2 and return an integer greater than, equal to, or
     less than 0, according to whether s1 is lexicographically greater than, equal to, or less than s2 after translation of each corresponding
     character to lower-case.  The strings themselves are not modified.  The comparison is done using unsigned characters, so that '200' is
     greater than ''.

     The strncasecmp() compares at most len characters.

SEE ALSO

     bcmp(3), memcmp(3), strcmp(3), strcoll(3), strxfrm(3)

HISTORY

     The strcasecmp() and strncasecmp() functions first appeared in 4.4BSD.

NOTES

     If len is zero strncasecmp() returns always 0.

BSD
								   June 9, 1993 							       BSD