case(1)                              fish                              case(1)

       case - conditionally execute a block of commands

       switch VALUE; [case [WILDCARD...]; [COMMANDS...]; ...] end

       switch executes one of several blocks of commands, depending on whether
       a specified value matches one of several values. case is used together
       with the switch statement in order to determine which block should be

       Each case command is given one or more parameters. The first case
       command with a parameter that matches the string specified in the
       switch command will be evaluated. case parameters may contain
       wildcards. These need to be escaped or quoted in order to avoid regular
       wildcard expansion using filenames.

       Note that fish does not fall through on case statements. Only the first
       matching case is executed.

       Note that command substitutions in a case statement will be evaluated
       even if its body is not taken. All substitutions, including command
       substitutions, must be performed before the value can be compared
       against the parameter.

       Say $animal contains the name of an animal. Then this code would
       classify it:

       switch $animal
           case cat
               echo evil
           case wolf dog human moose dolphin whale
               echo mammal
           case duck goose albatross
               echo bird
           case shark trout stingray
               echo fish
             Note that the next case has a wildcard which is quoted
           case '*'
               echo I have no idea what a $animal is

       If the above code was run with $animal set to whale, the output would
       be mammal.

       If $animal was set to 'banana', it would print 'I have no idea what a
       banana is'.

Version 3.0.2                   Tue Mar 26 2019                        case(1)