code update for sed folder

Author: sheetalkharab

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

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