Shell escape

To pass a command to the Unix shell for execution, precede the command with an exclamation mark.

Examples: 

    > !date
    > !ls -l
    > !more ../tmpfile
Do not put a terminator (colon/semicolon) at the end of a shell escape line -- everything following the exclamation mark is passed on to the shell.

Alternatively, it is possible to press ^Z (i.e., Control Z) to suspend dynagraph and gain access to the shell. The Dynagraph session can be resumed later with a fg command.

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