example07.01

UNIX[1].shell范例精解(第4版)_code

# The profile that all logins get before using their own .profile
trap " " 2 3
export LOGNAME PATH
if [ "$TERM" = " " ]
then
	if /bin/i386
	then
	     TERM=AT386	   # Sets the terminal
	else
	     TERM=sun
	fi
	export TERM
fi
# Login and -su shells get /etc/profile services.
# -rsh is given its environment in its own .profile.
	case "$0" in
	-sh | -ksh | -jsh )
		if [ ! -f .hushlogin ]
		then
			/usr/sbin/quota
			# Allow the user to break the Message-Of-The-
			# Day only.
			trap "trap ' ' 2" 2
			/bin/cat -s /etc/motd	
			# Message of the day displayed
			trap " " 2
			/bin/mail -E		 # Checks for new mail
			case $? in 
			0)
				echo "You have new mail. "
			;  ;
			2) 
				echo "You have mail. "
				;;
		   	esac
		fi
	esac
	umask 022
	trap 2 3