How to split a string into bash variables?

Question

linux

Tell me how to split a string into variables in bash.
The string protocol1:///protocol2:example.com
Get protocol2 and example.com

Answer 1

field1=`echo $str | cut -f 3 -d':'`
fileld2=`echo $str | cut -f 2 -d':' | tr -d '/'`
like so