adds rudimentary command checks + documents packages to install for alpine

easyBoxCtrl.sh

@@ -31,6 +31,16 @@ WGET="/usr/bin/wget ${WGET_OPTS[@]}"
 
 # * * * NO MORE CHANGES DOWN HERE * * * 
 
+COMMANDS="wget curl grep awk sed"
+for COMMAND in $COMMANDS; do
+  if ! command -v $COMMAND &> /dev/null
+  then
+    echo "$COMMAND could not be found!"
+    exit 1
+  fi
+done
+
+
 RETVAL=""
 touch $COOKIEFILE