updated script1 and script7

Author: M-Abdoon

individual-shell-tools/grep/script-01.sh

@@ -4,4 +4,4 @@ set -euo pipefail
 
 # TODO: Write a command to output every line in dialogue.txt said by the Doctor.
 # The output should contain 6 lines.
-grep "" dialogue.txt
+grep "^Doctor" dialogue.txt

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

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