ISATTY(3) Linux Programmer's Manual ISATTY(3)
NAME
isatty - does this descriptor refer to a terminalSYNOPSIS
#include <unistd.h> int isatty ( int desc );DESCRIPTION
returns 1 if desc is an open descriptor connected to a terminal and 0 else.CONFORMING TO
SVID, AT&T, X/OPEN, BSD 4.3
Linux April 20, 1995 1
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