fork download 
  1. #!/bin/bash
  2. s='1 Cov2,
  3. 2 CoV-2, 
  4. 3 COVID-2, 
  5. 4 COVID19, 
  6. 5 COVID-19, 
  7. 6 COVID 19, etc'
  8. grep -i -E "COV(ID)?[-[:space:]]?(2|19)" <<< "$s"
Success #stdin #stdout 0s 4420KB
comments (?)
stdin 
Standard input is empty
stdout 
1 Cov2,
2 CoV-2, 
3 COVID-2, 
4 COVID19, 
5 COVID-19, 
6 COVID 19, etc
https://ideone.com/waS9gv
language:
Bash (bash 5.0.3)
created:
6 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!