The interp Command

The interp command is used to create and manipulate interpreters. The interpreter being created is called a slave, and the interpreter that creates it is called the master. The master has complete control over the slave. The interp command is summarized in Table 19-1.

Table 19-1. The interp command

interp aliases slave	Lists aliases that are defined in slave.
interp alias slave cmd1	Returns target command and arguments for the alias cmd1 in slave.
interp alias slave cmd1 master cmd2 arg ...	Defines cmd1 in slave that is an alias to cmd2 in master with additional args.
interp create ?-safe? slave	Creates an interpreter named slave.
interp delete slave	Destroys interpreter slave.
interp eval slave cmd args ...	Evaluates cmd and args in slave.
interp exists slave	Returns 1 if slave is an interpreter, else 0.
interp expose slave cmd	Exposes hidden command cmd in slave.
interp hide slave cmd	Hides cmd from slave.
interp hidden slave	Returns the commands hidden from slave.
interp invokehidden slave cmd arg ...	Invokes hidden command cmd and args in slave.
interp issafe slave	Returns 1 if slave was created with -safe flag.
interp marktrusted slave	Clears the issafe property of slave.
interp recursionlimit slave ?limit?	Set or get the interpreter recursion limit for slave. (Tcl 8.4)
interp share master file slave	Shares the I/O descriptor named file in master with slave.
interp slaves master	Returns the list of slave interpreters of master.
interp target slave cmd	Returns the name of the interpreter that is the target of alias cmd in slave.
interp transfer master file slave	Transfers the I/O descriptor named file from master to slave.