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isatty (3)
ISATTY(3) Linux Programmer's Manual ISATTY(3)
NAME
isatty - does this descriptor refer to a terminal
SYNOPSIS
#include <unistd.h>
int isatty(int desc);
DESCRIPTION
returns 1 if desc is an open file descriptor connected to a terminal
and 0 otherwise.
CONFORMING TO
SVr4, 4.3BSD, POSIX.1-2001.
SEE ALSO
fstat(2), ttyname(3)
Linux 1995-04-20 ISATTY(3)
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