HP 3000 Manuals

Command Interpreter Access and Variables Programmer's Guide

Escaping Redirection 

If, for any reason, you want to use the IO redirection indicators <,> or
>> without having them function as such, you can precede them with the !
sign.

For example, suppose you wanted to construct a command file to explain
how to use I/O redirection which contained the following echo command:

     echo To redirect $STDLIST use the construct, >filename. 

This would cause filename to be a newly-created, temporary file
containing the string preceding it.

To prevent this from happening, insert !  before >filename, as follows:

     echo To redirect $STDLIST use the construct !>filename 

The resulting display would be:

     To redirect $STDLIST use the construct >filename

The !  can be used in the same way to escape the other redirection
indicators (< and >>) also.

MPE/iX 5.0 Documentation