refactoring two files

Author: shreefAhmedM

individual-shell-tools/ls/script-04.sh

@@ -21,4 +21,4 @@ echo "Second exercise (sorted oldest to newest):"
 
 # TODO: Write a command which does the same as above, but sorted in the opposite order (oldest first).
 # The output should be a list of names in this order, one per line: helper-2.txt, helper-1.txt, helper-3.txt.
- ls -1tr child-directory
+ls -1tr "${script_dir}/child-directory"

individual-shell-tools/sed/script-04.sh

@@ -4,4 +4,4 @@ set -euo pipefail
 
 # TODO: Write a command to output input.txt replacing every occurrence of the string "We'll" with "We will".
 # The output should contain 11 lines.
-sed "s/We'll/We will/g" input.txt
+sed 's/We'\''ll/We will/g' input.txt