Interactive Working

To start-up QCL for an interactive session you use the shell command

 
$qcl

QCL will issue the prompt qcl> to request command lines from your terminal. <ctrl> d in reply to this prompt (or the commands .EXIT and .QUIT; see section on structured programming) must be used to terminate an interactive session. As you start and stop QCL, symbolic assignments made will be remembered if you .EXIT or <ctrl> d out of QCL back to the shell. This is the case even if you log off the machine, log back on again and start QCL again. If you want to start QCL afresh forgetting all the previous assignments you must use the command

$qcl .ERASE *