Getting input

 If you like to run a CLI/shell program that must have input from the
 keyboard, then you MUST open a new con: window for both output
 and input. Like this:

 button "Check" 'checkmate <>con:0/11//210/CheckMate/Close [cont] b [base]'

 button "DiskCopy" 'diskcopy <>con:0/11//180/DiskC/Close from df0: to df0:'

 -------------------------------------------------------------------------

 Filename input

 If you have AmigaDos3.0 or better, you can use the C:requestfile
 command to get a filename. Here is a little example:

   button "Read text" 'multiview `requestfile`'

 Try it!

 Please note the difference between the ` and ' signs. The ` sign
 (placed over the tab button) is used in AmigaDos to pass output from
 one command directly into another command. This is how it works:
 Ex:

 list `echo "S:"`

 First the command echo is executed. The output from this command is
   S:
 The text `echo S:` is then replaced by the output from echo (S:)
   list S:
 This command is then executed.

 -------------------------------------------------------------------------

 Also se: How to get user input to an env variable.