MSS file read and write passwords are difficult to fit into a POSIX-style interface. However, since the MSS currently implements neither permission nor access control lists (ACLs), we must deal with read and write passwords.
Since many of the commands accept multiple MSS file names, and the individual files could have separate read or write passwords, you may give the password options multiple times on a single command line. The given password option applies to every MSS file from that point on (reading left to right), until changed by another option. In this fashion, a group of MSS files with the same password or different passwords may be manipulated. However, this could quickly become confusing.
The following two options apply to existing MSS files that have a read or write password set currently, or to a new file being created with msrcp:
-rpwd passwordSupply the read password for MSS files.
-wpwd passwordSupply the write password for MSS files.
You may give a null password (i.e. -rpwd '' with no space between the
quotes) to indicate subsequent MSS files do not (or should not) have a password.
For example, if the MSS file abc has a read password of
secret, and the MSS file def has
no read password, you could set the comment for both MSS files with either of
the following commands:
mscomment -c "A comment" -rpwd secret abc -rpwd '' defor:
mscomment -c "A comment" def -rpwd secret abc
The following options may be used to set a new read or write password with some of the metadata commands:
-newr passwordSupply the new read password for MSS files.
-neww passwordSupply the new write password for MSS files.
You may give OFF as the password
(i.e. -newr OFF) to indicate subsequent MSS files
should have the current password removed. For example, if the MSS files
abc and def have a read password
of secret, and you wish to set a new read
password of private for abc and
remove the password for def, you could use the following command:
mspasswd -rpwd secret -newr private abc -newr OFF def
Perhaps the worst simple example is moving an existing MSS file file1
with read abc and write def
passwords to replace an existing MSS file file2 with read
ghi and write jkl
passwords and specifying new read mno and write
pqr passwords:
msmv -f -rpwd abc -wpwd def file1 -rpwd ghi \
-wpwd jkl -newr mno -neww pqr file2
The msls command displays simulated permissions for MSS files
and directories. For directories, the owner and
other permissions are always displayed as
rwx, and the group
permissions are always displayed as ---.
For files, the owner permissions are always displayed as
rw-, group
permissions are always displayed as ---,
and the other permissions indicate whether
the MSS file actually has a read and/or write password.
The other permissions display an r
if the file is readable by everyone (no read password), and display a
w if the file is writable by anyone
(no write password). For example:
-rw----rw- 1 AUSER 01234567 4403 Aug 27 16:41 one -rw----r-- 1 AUSER 01234567 391168 Mar 3 1993 two -rw------- 1 AUSER 01234567 1204992 Jul 7 1992 three
The file named one is read/write for others (it has no read
password and no write password). File two is readable by others,
but not writable by others (no read password, but it does have a write password).
File three is neither readable nor writable by others (it has both
read and write passwords). Of course, if you know the read/write password,
then you can read/write the file.