Definitions

FILE filename filetype filemode: Specifies the file to lock. Pattern-matching is not allowed in the file specification.
PROFILE profilename: Specifies the directory profile to lock.
USER userid: Specifies the user ID of the directory entry to lock.
[ FILE [ filename ] ]
[ MSG | NOMSG ]
[ STACK [ FIFO | LIFO ]
[ FIFO ]
[ LIFO ]: These options are explained in Common API Command Options.