Updated ls-grep script-03.sh

Author: Rashaad-Ebrahim

shell-pipelines/ls-grep/script-03.sh

@@ -3,6 +3,6 @@
 set -euo pipefail
 
 # TODO: Write a command to output the names of the files in the sample-files directory whose name starts with an upper case letter and doesn't contain any other upper case letters.
-ls sample-files/ | grep '^[A-Z][a-z]*$'
+ls sample-files/ | grep '^[A-Z][^A-Z]*$'
 
 # Your output should contain 7 files.