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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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index(3) Library Functions Manual index(3)
index, rindex - locate character in string
Standard C library (libc, -lc)
#include <strings.h>
[[deprecated]] char *index(const char *s, int c);
[[deprecated]] char *rindex(const char *s, int c);
index() is identical to strchr(3).
rindex() is identical to strrchr(3).
Use strchr(3) and strrchr(3) instead of these functions.
None.
4.3BSD; marked as LEGACY in POSIX.1-2001. Removed in
POSIX.1-2008, recommending strchr(3) and strrchr(3) instead.
strchr(3), strrchr(3)
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user-space interface documentation) project. Information about
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⟨https://git.kernel.org/pub/scm/docs/man-pages/man-pages.git/tree/CONTRIBUTING⟩.
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2025-08-11. If you discover any rendering problems in this HTML
version of the page, or you believe there is a better or more up-
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Linux man-pages 6.15 2025-05-17 index(3)
Pages that refer to this page: string(3)
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HTML rendering created 2025-09-06 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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