Intro To Korn Shell Lesson 5 Basic Math

Summary

matches 0 or 1 of what is in the (). ?(pat) ?(pat1|pat2|pat3) Examples: if [[ $Name = tom?(my) ]] if [[ $Name = [jJ]ohn?(ny|boy|nie) ] ... Goes over the use of +(pat1|pat2|pat3...) which matches 1 or more of the patterns in the ()s in any combination. Also, goes over the ... Using arrays to group together similar variables into one list. Introduces else statement into an if/then/fi block. if test is true, then do block of code a, else do block of code b. Goes over using [ ] for giving you a choice/range. For example: *[aeiouAEIOU]* to see if a string has a vowel in it. Also goes over ... Goes over using ) to match a single, required pattern. matches exactly 1 of what is in the (). Useful for ...