Complete grep script-07: count Doctor lines per file

Author: SlimMicheals

individual-shell-tools/grep/script-07.sh

@@ -3,4 +3,5 @@
 set -euo pipefail
 
 # TODO: Write a command to output, for each `.txt` file in this directory, how many lines of dialogue the Doctor has.
+grep -c "^Doctor:" dialogue.txt
 # The output should show that dialogue.txt contains 6 lines, dialogue-2.txt contains 2, and dialogue-3.txt contains 0.