Linux cli command strlen

➡ A Linux man page (short for manual page) is a form of software documentation found on Linux and Unix-like operating systems. This man-page explains the command strlen and provides detailed information about the command strlen, system calls, library functions, and other aspects of the system, including usage, options, and examples of _. You can access this man page by typing man followed by the strlen.

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NAME 🖥️ strlen 🖥️

calculate the length of a string

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

#include <string.h>
size_t strlen(const char *s);

DESCRIPTION

The strlen() function calculates the length of the string pointed to by s, excluding the terminating null byte (‘�’).

RETURN VALUE

The strlen() function returns the number of bytes in the string pointed to by s.

ATTRIBUTES

For an explanation of the terms used in this section, see attributes(7).

InterfaceAttributeValue

strlen()

Thread safetyMT-Safe

STANDARDS

C11, POSIX.1-2008.

HISTORY

POSIX.1-2001, C89, SVr4, 4.3BSD.

NOTES

In cases where the input buffer may not contain a terminating null byte, strnlen(3) should be used instead.

SEE ALSO

string(3), strnlen(3), wcslen(3), wcsnlen(3)

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