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NAME

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

SYNOPSIS

       #include <strings.h>

       int strcasecmp(const char *s1, const char *s2);
              Compare the strings s1 and s2 ignoring case.

       int strncasecmp(const char *s1, const char *s2, size_t n);
              Compare the first n characters of the strings s1 and s2 ignoring case.

       char *index(const char *s, int c);
              Return a pointer to the first occurrence of the character c in the string s.

       char *rindex(const char *s, int c);
              Return a pointer to the last occurrence of the character c in the string s.

       #include <string.h>

       char *stpcpy(char *dest, const char *src);
              Copy  a  string  from  src to dest, returning a pointer to the end of the resulting
              string at dest.

       char *strcat(char *dest, const char *src);
              Append the string src to the string dest, returning a pointer dest.

       char *strchr(const char *s, int c);
              Return a pointer to the first occurrence of the character c in the string s.

       int strcmp(const char *s1, const char *s2);
              Compare the strings s1 with s2.

       int strcoll(const char *s1, const char *s2);
              Compare the strings s1 with s2 using the current locale.

       char *strcpy(char *dest, const char *src);
              Copy the string src to dest, returning a pointer to the start of dest.

       size_t strcspn(const char *s, const char *reject);
              Calculate the length of the initial segment of the string s which does not  contain
              any of bytes in the string reject,

       char *strdup(const char *s);
              Return a duplicate of the string s in memory allocated using malloc(3).

       char *strfry(char *string);
              Randomly swap the characters in string.

       size_t strlen(const char *s);
              Return the length of the string s.

       char *strncat(char *dest, const char *src, size_t n);
              Append  at  most  n  characters from the string src to the string dest, returning a
              pointer to dest.

       int strncmp(const char *s1, const char *s2, size_t n);
              Compare at most n bytes of the strings s1 and s2.

       char *strncpy(char *dest, const char *src, size_t n);
              Copy at most n bytes from string src to dest, returning a pointer to the  start  of
              dest.

       char *strpbrk(const char *s, const char *accept);
              Return a pointer to the first occurrence in the string s of one of the bytes in the
              string accept.

       char *strrchr(const char *s, int c);
              Return a pointer to the last occurrence of the character c in the string s.

       char *strsep(char **stringp, const char *delim);
              Extract the initial token in stringp that is delimited  by  one  of  the  bytes  in
              delim.

       size_t strspn(const char *s, const char *accept);
              Calculate the length of the starting segment in the string s that consists entirely
              of bytes in accept.

       char *strstr(const char *haystack, const char *needle);
              Find the first occurrence of the substring needle in the string haystack, returning
              a pointer to the found substring.

       char *strtok(char *s, const char *delim);
              Extract tokens from the string s that are delimited by one of the bytes in delim.

       size_t strxfrm(char *dest, const char *src, size_t n);
              Transforms src to the current locale and copies the first n characters to dest.

DESCRIPTION

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

SEE ALSO

       index(3),  rindex(3),   stpcpy(3),   strcasecmp(3),   strcat(3),   strchr(3),   strcmp(3),
       strcoll(3),   strcpy(3),  strcspn(3),  strdup(3),  strfry(3),  strlen(3),  strncasecmp(3),
       strncat(3),  strncmp(3),  strncpy(3),  strpbrk(3),   strrchr(3),   strsep(3),   strspn(3),
       strstr(3), strtok(3), strxfrm(3)

COLOPHON

       This  page  is  part of release 4.04 of the Linux man-pages project.  A description of the
       project, information about reporting bugs, and the latest version of  this  page,  can  be
       found at http://www.kernel.org/doc/man-pages/.

                                            2014-01-04                                  STRING(3)