Complete sed script-03: remove lines containing digits

Author: SlimMicheals

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

@@ -3,4 +3,5 @@
 set -euo pipefail
 
 # TODO: Write a command to output input.txt removing any line which contains a number.
+sed '/[0-9]/d' input.txt
 # The output should contain 6 lines.