fork download
copy 
  1. #!/bin/bash
  2. s='id,name,continent
  3. 1,Louise,Latin America
  4. 2,Sasha,Asia
  5. 3,Mike,North America'
  6. rx='^[0-9]*,[^,]*,[[:alpha:][:space:]]*$'
  7. while read -r line; do
  8.   if [[ "$line" =~ $rx ]]; then
  9.       echo "$line: Valid"
  10.   else
  11.       echo "$line: Invalid"
  12.   fi
  13. done <<< "$s"
Success #stdin #stdout 0.01s 5404KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
id,name,continent: Invalid
1,Louise,Latin America: Valid
2,Sasha,Asia: Valid
3,Mike,North America: Valid
https://ideone.com/FJW1OM
language:
Bash (bash 5.0.3)
created:
3 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!