Trailing-Edge
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PDP-10 Archives
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BB-PBDEB-BB_1990
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10,7/system/protec.hlp
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PROTECT Command
Function
The PROTECT command changes the access protection codes
associated with the specified files or directories. The change
is made by renaming the file.
You specify the access protection of a file with three octal
digits. Each digit represents a particular class of user. The
first digit represents the owner of the file, the second
represents users with the same project number as the owner, and
the third represents all other users. For a description of
protection codes see the help file PCODES.
The standard protection is either <057> or <055>. However, the
system default can be changed by individual installations. The
owner of a file can alter the protection code of that file
regardless of the existing protection code.
This command runs the COMPIL program, which interprets the
command before running PIP.
Format
PROTECT file-spec<nnn>,file-spec<nnn>,...
Where: file-spec is a file specification. For information
about file specifications, see the help file FISPEC.
<nnn> is an octal code.
You can specify the protection code before the file
name, in which case it applies for all following files.
You can use the full wildcard construction for the file
specification.
If you have the required privileges, you can change the
protection of files not in your directory by specifying
the desired directory name. If you specify the
directory name before the file name, it applies to all
succeeding files specified in the command line.
Associated Commands
PRESERVE Changes the protection codes of the specified files to
<1nn>.
Characteristics
Leaves your terminal at monitor level.
Destroys your core image.
Example
DIRECTORY shows that TEST.REL has the protection <155>:
.DIR TEST.*<RET>
TEST FOR 1 <055> dd-mmm-yy DSKC: [27,5434]
TEST SFD 1 <775> dd-mmm-yy
TEST REL 1 <155> dd-mmm-yy
TEST MAC 1 <055> dd-mmm-yy
TOTAL OF 4 BLOCKS IN 4 FILES ON DSKC: [27,5434]
Use PROTECT to change the protection code of TEST.REL to <555>:
.PROTECT TEST.REL<555><RET>
FILES RENAMED:
DSKC:TEST.REL
Show the new protection of TEST.REL with DIRECTORY.
.DIR TEST.*<RET>
TEST FOR 1 <055> dd-mmm-yy DSKC: [27,5434]
TEST SFD 1 <775> dd-mmm-yy
TEST REL 1 <555> dd-mmm-yy
TEST MAC 1 <055> dd-mmm-yy
TOTAL OF 4 BLOCKS IN 4 FILES ON DSKC: [27,5434]