Update macOCR command

Author: jaklan

commands/productivity/macocr/macocr-run-ocr.sh

@@ -1,10 +1,7 @@
 #!/bin/bash
 
-# Dependencies:
-# macOCR: https://github.com/schappim/macOCR
-
-# Recommended installation:
-# brew install schappim/ocr/ocr
+# Dependency: This script requires `macOCR` to be installed: https://github.com/schappim/macOCR
+# Install via homebrew: `brew install schappim/ocr/ocr`
 
 # Required parameters:
 # @raycast.schemaVersion 1
@@ -20,5 +17,10 @@
 # @raycast.author Jakub Lanski
 # @raycast.authorURL https://github.com/jaklan
 
+if ! command -v ocr &> /dev/null; then
+   echo "macOCR has to be installed (https://github.com/schappim/macOCR)";
+   exit 1;
+fi
+
 result=$(ocr -l ${1:-"en-US"})
 echo $result | tee >(pbcopy)