(Just extracted from the PK doco)


"PK AI -c3" 
Causes current directory to be the VIC room directory, if not already.


"PK AI -c3 new.dir" 
Sets the current directory to given directory. 
If the directory does not exist the standard error process happens.


"PK PK -c1"
Drops the current PK-file contents and loads in the last/alt PK-file, 
if exist, otherwise loads in the default PK-file. If the default does 
not exist it is created, following the method listed in the AI command 
reference for default PK-file creation. This includes the use of 
VIC-HOME:, PATH: and error actions.
*** This command does NOT update the last/alt. PK-filename position in 
the PK-file it loads. ***

In a simple way, this command might be used to traverse a circular 
linked-list of PK-files. But used along with other commands and 
variables, more complex movement can be done. Keep in mind that the 
PK-files are snap-shots or frames of a process and environment, and at 
selected point in the process, processes that may also be circular.


"PK PK -c1 PK-filename"
Saves the current PK-file and makes the given PK-file the current. This 
also updates the now current PK-file's "last/alt. PK-filename" with the 
saved PK-filename. If the given PK-filename does not exist it is created
following the method listed in the AI command reference. This includes 
the use of VIC-HOME:, PATH: and error actions.



"PK PK -c2"
Removes the last/alt. PK-filename from the PK-file.


"PK PK -c2 PK-filename"
Sets the last/alt. PK-filename to the given PK-filename. If the given 
PK-filename does not exist it is created following the method listed in 
the AI command reference. This includes the use of VIC-HOME:, PATH: and 
error actions.


"PK PK -c3"
Removes the "Default PK-filename" from the PK-file.


"PK PK -c3 PK-filename"
Sets the "Default PK-filename" to the given PK-filename. If the given 
PK-filename does not exist it is created following the method listed in 
the AI command reference. This includes the use of VIC-HOME:, PATH: and 
error actions.


"PK OI -c1"
Removes the current OI-filename from the PK-file. In doing this, the 
last/alt. OI-filename is moved to the current OI-filename position, if 
exist. Otherwise, the default OI-filename is copied to the current 
OI-filename position. If the default does not exist, it is created and 
placed in the VIC room.


"PK OI -c1 OI-filename"
Sets the current OI-Filename to the given OI-filename. This command
also updates the last/alt. OI-filename to the previous current
OI-filename. If the given OI-file does not exist, it is created
following the standard file creation and use of VIC-HOME:, Path:
and error actions.


"PK OI -c2"
Removes the last/alt. OI-filename from the PK-file.


"PK OI -c2 OI-filename"
Sets the last/alt. OI-File to the given OI-filename. If the
OI-file does not exist, it is created following the standard file
creation and use of VIC-HOME:, Path: and error actions.


"PK OI -c3"
Removes the opt/default OI-filename from the PK-file.


"PK OI -c3 OI-filename"
Sets the opt/default OI-Filename to the given OI-filename. If the given 
OI-file does not exist, it is created following the standard file 
creation and use of VIC-HOME:, Path: and error actions.


"PK IP -c1"
Removes the current IP-set from the PK-file. In doing this, the 
last/alt. IP-set is moved to the current position, if exist. Otherwise, 
the default IP-set is copied to the current position. If the default 
does not exist, it is created as simply "stdin,,,,".


"PK IP -c1 IP-set"
Sets the current IP-set position to the given IP-set. This command also 
moves to the last/alt. IP-set position the prior "current" IP-set (The 
IP-set being replaced). If the given IP-set does not contain a device 
then the device position is set to stdin.


"PK IP -c2"
Removes the last/alt. IP-set from the PK-file.


"PK IP -c2 IP-set"
Sets the last/alt. IP-set to the given IP-set. If the IP-set does not 
contain a device then the device position is set to stdin. 

"PK IP -c3"
Removes the opt/default IP-set from the PK-file.


"PK IP -c3 IP-set"
Sets the opt/default IP-set to the given IP-set. If the given IP-set 
does not contain a device then the device position is set to stdin.


"PK OP -c1"
Removes the current OP-set from the PK-file. In doing this, the 
last/alt. OP-set is moved to the current position, if exist. Otherwise, 
the default OP-set is copied to the current position. If the default 
does not exist, it is created as simply "stdout,,,,".


"PK OP -c1 IP-set"
Sets the current OP-set position to the given OP-set. This command also 
moves to the last/alt. OP-set position the prior "current" OP-set (The 
IP-set being replaced). If the given OP-set does not contain a device 
then the device position is set to stdout.


"PK OP -c2"
Removes the last/alt. OP-set from the PK-file.


"PK OP -c2 OP-set"
Sets the last/alt. OP-set to the given OP-set. If the OP-set does not 
contain a device then the device position is set to stdout. 


"PK OP -c3"
Removes the opt/default OP-set from the PK-file.


"PK OP -c3 OP-set"
Sets the opt/default OP-set to the given OP-set. If the given OP-set 
does not contain a device then the device position is set to stdout.


"PK SF -c1"
Removes the current SF-LPC flags from the PK-file. In doing this, the 
last/alt. SF-LPC flags are moved to the current position, if exist. 
Otherwise, the default SF-LPC flags are written to the current position.
		

"PK SF -c1 [SF-LPC flags]"
Sets the current SF-LPC flags position to the given SF-LPC flags. This 
command also moves to the last/alt. SF-LPC flags position the prior 
"current" SF-LPC flags (The SF-LPC flags being replaced). 


"PK SF -c2"
Clears the last/alt. SF-LPC flags from the PK-file.


"PK SF -c2 [SF-LPC flags]"
Sets the last/alt. SF-LPC flags to the given SF-LPC flags. 


"PK SF -c3"
Clears the contents of this field 3 from the PK-file.


"PK SF -c3 [SF-filename@line#,....]"
Sets field 3 to the given SF-filename@line# value(s). 


"PK SF -c4"
Clears the contents of this field 4 from the PK-file.


"PK SF -c4 [SF-filename@line#,...]"
Sets field 4 to the given SF-filename@line#,... value(s). 


"PK IQ -c1"
Removes the current IQ flags from the PK-file. In doing this, the 
last/alt. IQ flags are moved to the current position, if exist. 
Otherwise, the default IQ flags are written to the current position.
		

"PK IQ -c1 [IQ flags]"
Sets the current IQ flags position to the given IQ flags. This 
command also moves to the last/alt. IQ flags position the prior 
"current" IQ flags (The IQ flags being replaced). 


"PK IQ -c2"
Clears the last/alt. IQ flags from the PK-file.


"PK IQ -c2 [IQ flags]"
Sets the last/alt. IQ flags to the given IQ flags. 


"PK IQ -c3"
Clears the contents of this field 3 from the PK-file.


"PK IQ -c3 [IQ-filename@line#,....]"
Sets field 3 to the given IQ-filename@line# value(s). 


"PK IQ -c4"
Clears the contents of this field 4 from the PK-file.


"PK IQ -c4 [IQ-filename@line#,...]"
Sets field 4 to the given IQ-filename@line#,... value(s). 


"PK ID -c1"
Removes the current ID flags from the PK-file. In doing this, the 
last/alt. ID flags are moved to the current position, if exist. 
Otherwise, the default ID flags are written to the current position.
		

"PK ID -c1 [ID flags]"
Sets the current ID flags position to the given ID flags. This 
command also moves to the last/alt. ID flags position the prior 
"current" ID flags (The ID flags being replaced). 


"PK ID -c2"
Clears the last/alt. ID flags from the PK-file.


"PK ID -c2 [ID flags]"
Sets the last/alt. ID flags to the given ID flags. 

"PK ID -c3"
Clears the contents of this field 3 from the PK-file.


"PK ID -c3 [ID-filename@line#,....]"
Sets field 3 to the given ID-filename@line# value(s). 


"PK ID -c4"
Clears the contents of this field 4 from the PK-file.


"PK ID -c4 [ID-filename@line#,...]"
Sets field 4 to the given ID-filename@line#,... value(s). 


"PK KE -c1"
Removes the current KE Master-Teeth from the PK-file. In doing this, the 
last/alt. KE Master-Teeth are moved to the current position.
		

"PK KE -c1 [KE Master-Teeth]"
Sets the current KE Master-Teeth position to the given ME Master-Teeth. 
This command also moves to the last/alt. KE Master-Teeth position the 
prior "current" KE Master-Teeth (The KE Master-Teeth being replaced). 


"PK KE -c2"
Clears the last/alt. KE Master-Teeth from the PK-file.


"PK KE -c2 [KE Master-Teeth]"
Sets the last/alt. KE Master-Teeth to the given KE Master-Teeth. 

"PK KE -c3"
Clears the contents of this field 3 from the PK-file.


"PK KE -c3 KE-filename"
Sets field 3 to the given KE-filename. 


"PK KE -c4"
Clears the contents of this field 4 from the PK-file.


"PK KE -c4 [Master-Teeth; last/alt. Master-Teeth; KE-Filename]"
Sets field 4 to the given KE value(s).