was geschieht bei Mehrfachzugriff auf eine Datei?
caladan:~$ zcat /usr/man/man1/tty.1.gz
.TH TTY 1 "GNU Shell Utilities" "FSF" \" -*- nroff -*-
.SH NAME
tty \- print the file name of the terminal connected to standard input
.SH SYNOPSIS
.B tty
[\-s] [\-\-silent] [\-\-quiet] [\-\-help] [\-\-version]
caladan:~$ man tty
Reformatting tty(1), please wait...
TTY(1) TTY(1)
NAME
tty - print the file name of the terminal connected to
standard input
SYNOPSIS
tty [-s] [--silent] [--quiet] [--help] [--version]