PERROR(3)

NAME
perror - print a system error message

SYNOPSIS
#include <stdio.h>

void perror(const char *s);

DESCRIPTION
perror produces a message on the standard error output, describing the last error encountered during a call to a system or library function. The argument string s is printed first, then a colon and a blank, then the message and a new-line. To be of most use, the argument string should include the name of the program that incurred the error. The error number is taken from the external variable errno, which is set when errors occur but not cleared when non-erroneous calls are made.

CONFORMING TO
ANSI C, POSIX

SEE ALSO
errno(2), strerror(3)