the beginning
It's important to understand that these use shell "globbing" rather than "regular expressions" to match these patterns. Naturally a simple string like "txt" wi... card in your pattern.
A simple example of using these operators comes in the common question of copying... ectory.
Another interesting thing we can do with these "parameter expansion" features is to iterate over... variables per line. This allows us to use any of these fields that we need from within the loop. Here we
