fork download
copy 
  1. #!/bin/bash
  2. s="02/02/2020
  3. 08/25/1998
  4. 03/02/2030
  5. 12/02/2021
  6. 06/19/1960
  7. 01/10/2010
  8. 03/07/2100"
  9. sed -E '/^([0-9])([0-9])\/([0-9])([0-9])\/\4\3\2\1$/!d' <<< "$s"
Success #stdin #stdout 0s 4424KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
02/02/2020
03/02/2030
12/02/2021
https://ideone.com/K0Tax3
language:
Bash (bash 5.0.3)
created:
5 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!