string

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

NAME
       stpcpy,  strcasecmp,  strcat, strchr, strcmp, strcoll, strcpy, strcspn,
       strdup, strfry, strlen, strncat, strncmp, strncpy,  strncasecmp,  strp-
       brk,  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  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), strp-
       brk(3),  strrchr(3),  strsep(3),   strspn(3),   strstr(3),   strtok(3),
       strxfrm(3)

COLOPHON
       This  page  is  part of release 4.15 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
       https://www.kernel.org/doc/man-pages/.

                                  2014-01-04                         STRING(3)
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