jannet: Add commands help and install

scripts/jannet

@@ -14,12 +14,14 @@ usage()
 {
 cat << EOT
 
-  $myname command
+  $myname command [arguments]
 
   command is one of
 
+    help:     show this help screen
     init:     initialize
     uninit:   undo initialization
+    install:  install packages in [arguments]
     update:   update all jannet software on the system
 
 EOT
@@ -28,7 +30,11 @@ EOT
 	fi
 }
 
-case $1 in
+cmd="$1"
+shift
+
+case $cmd in
+
 init)
 	if ! channel_present ftp.jannet.de; then
 		echo -n "adding installation source ... "
@@ -39,6 +45,7 @@ init)
 		if channel_present; then echo done; else echo failed; fi
 	fi
 	;;
+
 uninit)
 	if channel_present ftp.jannet.de; then
 		echo -n "removing installation source ... "
@@ -46,12 +53,24 @@ uninit)
 		echo done
 	fi
 	;;
+
 update)
 	sudo smart update ftp.jannet.de
 	sudo smart upgrade -y
 	;;
+
+install)
+	sudo smart update ftp.jannet.de
+	sudo smart install -y $*
+	;;
+
+help)
+	usage 0
+	;;
+
 *)
 	usage 1
 	;;
+
 esac