Complete grep script-03: count matching lines

Author: SlimMicheals

individual-shell-tools/grep/script-03.sh

@@ -3,4 +3,5 @@
 set -euo pipefail
 
 # TODO: Write a command to output the number of lines in dialogue.txt that contain the word Doctor (regardless of case).
+grep -i "doctor" dialogue.txt | wc -l
 # The output should be exactly the number 9.