string(3)		    Library Functions Manual		       string(3)

NAME
     stpcpy,  strcasecmp,  strcat,  strchr,  strcmp,  strcoll,	strcpy, strcspn,
     strdup, strfry, strlen, strncat, strncmp,	strncpy,  strncasecmp,	strpbrk,
     strrchr, strsep, strspn, strstr, strtok, strxfrm - string operations

LIBRARY
     Standard C library (libc, -lc)

SYNOPSIS
     #include <string.h>
     #include <strings.h>

DESCRIPTION
     The  string  functions  perform operations on null-terminated strings.  See
     the individual man pages for descriptions of each function.

     strcasecmp(3)
	    Compare two strings, ignoring case.

     strncasecmp(3)
	    Compare the first bytes of two strings, ignoring case.

     stpcpy(3)
	    Copy a string, returning a pointer	to  the	 end  of  the  resulting
	    string.

     strcat(3)
	    Append a string into an existing string.

     strchr(3)
	    Find the first occurrence of a character in a string.

     strcmp(3)
	    Compare two strings.

     strcoll(3)
	    Compare two strings, using the current locale.

     strcpy(3)
	    Copy a string.

     strcspn(3)
	    Calculate  the  length of the initial segment of a string which does
	    not contain any of the rejected bytes.

     strdup(3)
	    Duplicate a string in memory allocated using malloc(3).

     strfry(3)
	    Randomly swap the characters in a string.

     strlen(3)
	    Return the length of a string.

     strncat(3)
	    Append non-null bytes from an array to a string, and  null-terminate
	    the result.

     strncmp(3)
	    Compare the first bytes of two strings.

     strpbrk(3)
	    Find the first occurrence in a string of one of the bytes in the ac-
	    cepted bytes.

     strrchr(3)
	    Find the last occurrence of a character in a string.

     strsep(3)
	    Extract  the  initial  field in a string that is delimited by one of
	    the delimiter bytes.

     strspn(3)
	    Calculate the length of the initial segment of a  string  that  con-
	    sists entirely of accepted bytes.

     strstr(3)
	    Find the first occurrence of a substring in a string.

     strtok(3)
	    Extract tokens from a string that are delimited by one of the delim-
	    iter bytes.

     strxfrm(3)
	    Transforms a string to the current locale and copies the first bytes
	    to a buffer.

     strncpy(3)
	    Fill  a  fixed-size buffer with leading non-null bytes from a source
	    array, padding with null bytes as needed.

SEE ALSO
     bstring(3), stpcpy(3), strcasecmp(3), strcat(3), strchr(3), strcmp(3), str-
     coll(3), strcpy(3),  strcspn(3),  strdup(3),  strfry(3),  strlen(3),  strn-
     casecmp(3),  strncat(3),  strncmp(3),  strncpy(3),	 strpbrk(3), strrchr(3),
     strsep(3), strspn(3), strstr(3), strtok(3), strxfrm(3)

Linux man-pages 6.18		   2026-02-25			       string(3)