Chapter 2 75
Command Definitions A-B
ALTSEC
ALTSEC FPROG;ACCESS=(X:GU;R,W:AL,GL)
ACD Examples
To view ACD information, use the LISTFILE,-2 command. This form of the LISTFILE
command displays only ACD information.
You have created a file named FDATA, and want to assign a new ACD to FDATA, granting
write access to a user named FRIEND.ACCT. Enter:
ALTSEC FDATA;NEWACD=(W:FRIEND.ACCT)
As the creator of a file, you can access the file by default, so you don't need to grant yourself
access through an ACD. Users with appropriate privileges are always permitted to access
files protected by ACDs.
To extend the ACD for the FDATA file so that all users on the system can read it, and all
users within your account ACCT can also write to it, enter:
ALTSEC FDATA;ADDPAIR=(R:@.@;W,R:@.ACCT)
If you decide that users outside your account ACCT should not have read access to the file
FDATA any longer, enter:
ALTSEC FDATA;DELPAIR=(@.@)
This does not delete all ACD pairs, only the ACD pair matching @.@. To delete the entire
ACD, enter:
ALTSEC FDATA;DELACD
To replace the entire ACD, enter:
ALTSEC FDATA;REPACD=(W:FRIEND.ACCT)
You want to copy the ACD associated with LDEV 5 to all devices in device class TERM:
ALTSEC TERM,DEVCLASS;COPYACD=5,LDEV
ACDs may be copied only between objects of the same type.
You want to grant users in account ACCT all access to directory Mydir1:
ALTSEC ./Mydir1;ADDPAIR=(CD,DD,RD,TD,RACD:@.ACCT)
You want to grant read and write access to yourself and read access for other members of
your group to an HFS Syntax file named a_file_of_Mine:
ALTSEC ./a_file_of_Mine;REPPAIR=(RACD,R,W:$OWNER;
RACD,R:$GROUP,$GROUP_MASK;NONE:@.@)
To add a new ACD to file PROGNAME allowing all users on the system to execute it, but only
users in account ACCT to write to it enter:
ALTSEC PROGNAME;NEWACD=(X:@.@;W,X:@.ACCT)
To add a new ACD pair to an ACD which already exists for file PROGNAME which will allow
the user ENGR of the LAB account to read, write, lock, append, execute and read the ACD
information enter:
ALTSEC PROGNAME;ADDPAIR=(R,W,X,RACD:ENGR.LAB)
