Add usage as well as fix the global install to work properly with node_modules.

install.sh

@@ -5,15 +5,47 @@
 ## Variables ##
 
 DIR="$(cd "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)"
+PROG="$(basename -- "${BASH_SOURCE[0]}")"
 LOCAL=~/bin
 GLOBAL=/usr/local/bin
+GLOBAL_SRC=/usr/local/src
 
+name_local="prototype.js"
 name_short="nomad"
 name_long="nomadic-weather"
 name_abs="weather-list"
 
 ## Functions ##
 
+function usage {
+	cat <<- EOF
+		$PROG [-h] [-g] [a|l|s] [-r]
+
+		Install $name_local to the system. Can be local, global, or removed.
+
+		Parameters)
+		  h) Display this message.
+		  g) Install globally ($GLOBAL), otherwise local ($LOCAL).
+		  a) Abstract name, unrelated to being nomadic. ($name_abs)
+		  l) Long name, the full name of the project. ($name_long)
+		  s) Short name, the full name of the project. ($name_short)
+		  r) Remove / uninstall the project according to the above flags.
+
+		Examples)
+		  - Install to the local user with the abstract name.
+		      $PROG
+		  - Install to all users with all names.
+		      $PROG -alsg
+		  - Remove all instances.
+		      $PROG -alsr && $PROG -alsrg
+
+		Happy weather watching! :)
+
+		~ Hyperling
+	EOF
+	exit $1
+}
+
 ## Parameters ##
 
 while getopts ":gslarh" arg; do
@@ -42,25 +74,34 @@ if [[ "$abstract" == "Y" || ( -z "$short" && -z "$long" ) ]]; then
 fi
 
 cmd=""
-if [[ -z "$remove" ]]; then
-	cmd="cp -v $DIR/prototype.js"
-else
-	cmd="rm -v"
-fi
-
 dir="$LOCAL"
+src="$DIR"
 if [[ "$global" == "Y" ]]; then
 	dir="$GLOBAL"
-	cmd="sudo $cmd"
+	cmd="sudo"
 	echo "Requesting sudo privileges... "
 	sudo echo "Success!"
+	mkdir -pv /usr/local/src
+	sudo cp -Rv "$DIR" $GLOBAL_SRC/
+	src="$GLOBAL_SRC/`basename "$DIR"`"
+fi
+
+if [[ -z "$remove" ]]; then
+	cmd="$cmd ln -svf $src/$name_local"
+else
+	cmd="$cmd rm -v"
 fi
 
 ## Main ##
 
+# Untested
+#if [[ "$global" == "Y" && "$remove" == "Y" ]]; then
+#	sudo rm -rfv "$src"
+#fi
+
 for prog in $name; do
-	mkdir -pv $dir
+	mkdir -pv "$dir"
-	$cmd $dir/$prog
+	$cmd "$dir/$prog"
 done
 
 ## Finish ##