check if toot is installed

README.md

@@ -15,6 +15,7 @@ If I had to choose a license, it would be [MIT](LICENSE.md).
 ## Dependencies
 
 - `wget`
+- `toot` (optional for posting on Mastodon)
 
 ## TO DO
 

get-last-rss-post.sh

@@ -104,6 +104,10 @@ echo "\nCopy and Paste this:\n\n+++++"
 echo "Latest article from my blog: \"$TITLE\"\n\n$LINK"
 echo "+++++"
 
-if [[ "$TOOT" == "1" ]]; then yes_or_no "Post it on Mastodon?"; fi 
+if [[ "$TOOT" == "1" ]]; then
+    which toot > /dev/null # Check if toot is installed
+    if ! [[ $? == "0" ]]; then echo "ERROR. Toot is not installed. Exiting."; cleanup 1; fi
+    yes_or_no "Post it on Mastodon?"
+fi 
 
 cleanup 0