add directory study

study/linux-travel/MINIX-1.5/1.5/Source/amoeba/util/rcp

@@ -0,0 +1,76 @@
+: Copy a file from any machine to any other machine.
+usage="Usage: $0 [machine!]from-file [machine!]to-file"
+PATH=/usr/local:/bin:/usr/bin
+CDPATH=
+case $# in
+2)	:
+	;;
+*)	echo "$usage" 1>&2
+	exit 1
+esac
+from=$1 to=$2
+case $from in
+*!*)	IFS="!"
+	set $from
+	case $# in
+	2)	from_mach=$1 from_file=$2 IFS=" "
+		;;
+	*)	echo "$usage" 1>&2
+		exit 1
+	esac
+	;;
+*)	from_file=$from
+esac
+case "$from_file" in
+"")	echo "$usage" 1>&2
+	exit 1
+esac
+case $to in
+*!*)	IFS="!"
+	set $to
+	case $# in
+	2)	to_mach=$1 to_file=$2 IFS=" "
+		;;
+	*)	echo "$usage" 1>&2
+		exit 1
+	esac
+	;;
+*)	to_file=$to
+esac
+case "$to_file" in
+"")	echo "$usage" 1>&2
+	exit 1
+esac
+case "$from_mach" in
+"$to_mach")
+	: machines equal
+	case "$to_mach" in
+	"")	: local
+		cp "$from_file" "$to_file"
+		;;
+	*)	: remote
+		rsh "$to_mach" "cp $from_file $to_file"
+		;;
+	esac
+	;;
+*)	: machines not equal
+	case "$to_mach" in
+	"")	: to local
+		if test -d "$to_file"
+		then	rsh -e "$from_mach" "cat $from_file" >"$to_file/`basename $from_file`"
+		else	rsh -e "$from_mach" "cat $from_file" >"$to_file"
+		fi
+		;;
+	*)	: to remote
+		case "$from_mach" in
+		"")	: from local
+			rsh -i "$to_mach" "if test -d $to_file; then cat >$to_file/`basename $from_file`; else cat >$to_file; fi" <"$from_file"
+			;;
+		*)	: from remote
+			rsh -e "$from_mach" "cat $from_file" | rsh -i "$to_mach" "if test -d $to_file; then cat >$to_file/`basename $from_file`; else cat >$to_file; fi"
+			;;
+		esac
+		;;
+	esac
+	;;
+esac