Add new plugin for virtual host management

plugins/vhost/vhost.plugin.zsh

@@ -0,0 +1,60 @@
+# frontend from terminal
+
+function vhost() {
+
+
+  local hosts_file
+  hosts_file='/etc/hosts'
+
+  # no keyword provided, simply show how call methods
+  if [[ "$#" -le 1 && $1 -ne "ls" ]]; then
+    echo "Please provide a command with params.\nEx:\nvhost <command> <params>\n"
+    return 1
+  fi
+
+  # check whether the search engine is supported
+  if [[ ! $1 =~ "(add|ls|rm)" ]];
+  then
+    echo "Option '$1' is not supported."
+    echo "Usage: vhost <ip> <host>"
+    echo "\t* add <ip> <host>"
+    echo "\t* ls"
+    echo "\t* rm <ip> <host>"
+    echo ""
+
+    return 1
+  fi
+
+  case "$1" in
+    "ls")
+      cat $hosts_file
+      ;;
+    "add")
+      if [[ $# -le 2 ]]; then
+        echo "This method should receive 2 params <ip> <host>"
+      fi
+      vhost="$2 $3"
+      sudo echo "$vhost" >> $hosts_file
+      echo "New virtual host '$3' created!"
+      ;;
+    "rm")
+      if [[ $# -le 2 ]]; then
+        echo "This method should receive 2 params <ip> <host>"
+      fi
+
+    	sudo -v
+      vhost="$2 $3"
+
+      echo -n "  - Removing '$vhost' from $hosts_file... "
+      cat $hosts_file | grep -v $vhost > /tmp/hosts.tmp
+      if [[ -s /tmp/hosts.tmp ]]; then
+        sudo mv /tmp/hosts.tmp $hosts_file
+      fi
+      echo "Virtual host '$3' removed!"
+      ;;
+    *) echo "Command '$1' doesn't exist, sir."
+       return 1
+       ;;
+  esac
+
+}