Check if a string is a valid URL.
Code
General[[ "$url" =~ ^https?://[^[:space:]]+ ]] && echo "true" || echo "false"Parameters
The URL to validate
Server
More Bash Snippets
Check Password Strength
Check if a password meets strength requirements (8+ chars, uppercase, lowercase, number, special).
Is Alpha Only
Check if a string contains only alphabetic characters.
Is Alphanumeric
Check if a string contains only letters and numbers.
Is Empty
Check if a value is empty.
Is Numeric
Check if a string represents a valid number.
Validate Email
Check if a string is a valid email address.