How can I write an if statement to see if a variable CONTAINS a specific piece of text? It doesn't have to be equal to it, it just has to contain it. For example, the strings might all be numbers, but I only want to execute a command if the number contains a number 1 in it, so the number could be 1, 10, 14, 21, 101 etc.
Hope this makes sense

Kind regards,
Dominic Fichera