Linux cli command futimesat

➡ 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 futimesat and provides detailed information about the command futimesat, 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 futimesat.

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NAME 🖥️ futimesat 🖥️

change timestamps of a file relative to a directory file descriptor

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

#include <fcntl.h> /* Definition of AT_* constants */
#include <sys/time.h>
[[deprecated]] int futimesat(int dirfd, const char *pathname,
 const struct timeval times[2]);

Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

futimesat():

    _GNU_SOURCE

DESCRIPTION

This system call is obsolete. Use utimensat(2) instead.

The futimesat() system call operates in exactly the same way as utimes(2), except for the differences described in this manual page.

If the pathname given in pathname is relative, then it is interpreted relative to the directory referred to by the file descriptor dirfd (rather than relative to the current working directory of the calling process, as is done by utimes(2) for a relative pathname).

If pathname is relative and dirfd is the special value AT_FDCWD, then pathname is interpreted relative to the current working directory of the calling process (like utimes(2)).

If pathname is absolute, then dirfd is ignored. (See openat(2) for an explanation of why the dirfd argument is useful.)

RETURN VALUE

On success, futimesat() returns a 0. On error, -1 is returned and errno is set to indicate the error.

ERRORS

The same errors that occur for utimes(2) can also occur for futimesat(). The following additional errors can occur for futimesat():

EBADF
pathname is relative but dirfd is neither AT_FDCWD nor a valid file descriptor.

ENOTDIR
pathname is relative and dirfd is a file descriptor referring to a file other than a directory.

VERSIONS

glibc

If pathname is NULL, then the glibc futimesat() wrapper function updates the times for the file referred to by dirfd.

STANDARDS

None.

HISTORY

Linux 2.6.16, glibc 2.4.

It was implemented from a specification that was proposed for POSIX.1, but that specification was replaced by the one for utimensat(2).

A similar system call exists on Solaris.

NOTES

SEE ALSO

stat(2), utimensat(2), utimes(2), futimes(3), path_resolution(7)

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