User`s guide

Creating Command, Control, and BATCH Files
Using a Command File As a Command Parameter
You can abbreviate a command by supplying the at command (@) with a command
file as the command’s parameter; for example:
.LINK @MYFILS.COM
When you embed the at command (@) within a DCL command, KMON does an
append substitution. That is, in the preceding example, the first line and then any
subsequent lines in the file MYFILS.COM are substituted as the object of the LINK
command.
Control Files
Control files are files containing commands to IND (the INDirect control file
processor). These files can also contain DCL commands.
To create and execute control files, see the RT–11 IND Control Files Manual.
BATCH Files
BATCH files contain BATCH commands processed by the BATCH compiler so they
can be run by the BATCH run-time handler. See the BATCH appendix in the RT–11
System Utilities Manual to create and execute BATCH files.
1–12 Using RT–11 Commands