Linux cli command vhangup

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

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NAME 🖥️ vhangup 🖥️

virtually hangup the current terminal

LIBRARY

Standard C library (libc, -lc)

SYNOPSIS

#include <unistd.h>
int vhangup(void);

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

vhangup():

    Since glibc 2.21:
        _DEFAULT_SOURCE
    In glibc 2.19 and 2.20:
        _DEFAULT_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)
    Up to and including glibc 2.19:
        _BSD_SOURCE || (_XOPEN_SOURCE && _XOPEN_SOURCE < 500)

DESCRIPTION

vhangup() simulates a hangup on the current terminal. This call arranges for other users to have a “clean” terminal at login time.

RETURN VALUE

On success, zero is returned. On error, -1 is returned, and errno is set to indicate the error.

ERRORS

EPERM
The calling process has insufficient privilege to call vhangup(); the CAP_SYS_TTY_CONFIG capability is required.

STANDARDS

Linux.

SEE ALSO

init(1), capabilities(7)

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