Colon Commands for Script Files

Colon commands provide control over how script files behave. Most of the colon commands affect what is displayed on the screen as a script file executes. Except for the ; (comment), the colon command must be on a line by itself in your script file. These are the colon commands:

; text

Comment. The text following the semicolon (;) is ignored by Autolog. The ; can be the first character on a line, or it can come after the executable part of an Autolog command.
:S
Silence. Causes the script file to execute "silently," that is, nothing is displayed on the screen as the script executes.
:R
Results. Causes the results of commands, but not the commands themselves, to be displayed as the script executes.
:T
Trace. Causes both commands and their results to be displayed as the script executes.
:U
Untrace. Turns off "trace" mode and allows the previous :R or :S mode to resume.
:X
End. Causes the script to stop executing, regardless of whether there are more commands following in the script file.
:K
Keyboard input. Causes script execution to be suspended until a user enters something from the keyboard. This colon command does not check the user's input.
:<text>
Prompt. Causes the text in the angle brackets to be displayed. This colon command is useful for displaying a prompt before a :K command or for providing feedback about what the script file is doing as it executes.