Trailing-Edge
-
PDP-10 Archives
-
BB-PBQUC-BM_1990
-
help/rename.hlp
There are 3 other files named rename.hlp in the archive. Click here to see a list.
RENAME command
The RENAME command changes the name of a file.
Format
@RENAME (EXISTING FILE) old filespec(s) (TO BE) new filespec
where:
old filespec(s) is a single file specification, or a series
of them separated by commas and/or indicated
by wildcard characters (% and *).
new filespec is the new specification under which you want
to store the file(s); the new specification
must be on the same structure; you may
include an asterisk (*) if you gave more than
one old filespec.
Default new filespec - old filespec, but
with a generation number higher
by 1 than the highest existing
generation number
Output
Status of Files
If you use recognition on the new file specification, the
system prints !Old Generation!, !New Generation!, or !New
File!, to describe its status.
Confirmation of Action
As each file is renamed, the system prints its old and new
specification, and the word [Superseding] if it is replacing
previous contents, and finally the word [OK]. The delay
before you see this [OK] indicates how long it took to
rename the file.
Characteristics
Hints
Specifying a New Account and Protection Number
You can specify the new file's protection number and the
account to which its storage fees will be charged. Follow
the new filespec with a semicolon (;) and the letter P
before giving a new 6-digit protection number, and with a
semicolon and the letter A before giving a new account.
Ordinarily these values are set to the default file
protection and current account. However, non-default
protection numbers will be maintained for higher generations
of existing files, unless you specify otherwise in the
RENAME command that creates that higher generation.
RENAME Faster Than COPY for Transferring Files
For moving a set of files from one directory to another on
the same structure, the RENAME command is a faster and more
efficient means than COPY. This is because RENAME only
changes the file specifications; it does not copy the
contents of the files. Also, a file transfer with the
RENAME command leaves only one set of files, while a
transfer with the COPY command leaves two sets: the
original copies and the destination copies. The original
copies are often unnecessary and must be deleted.
Restrictions
Renaming Between Structures
You cannot rename a file from one structure to another, but
must use the COPY command to reproduce its contents on the
new structure, then the DELETE command to remove it from the
old structure.
Renaming Open or Mapped Files
You cannot rename a file that is open or mapped into memory.
First give the RESET command, or POP followed by RESET, if
this is the case.
Renaming Archived Files
You can rename an archived file by specifying it as the
first (or old) argument of a RENAME command. It will then
have the second (or new) argument as its specification and
will remain an archived file. However, you cannot give the
specification of an archived file as the second argument of
a RENAME command, as this would replace the file's contents.
If you attempt to do so, the file you specify as the first
argument will be renamed to a generation higher by 1 than
the highest existing generation of the archived file,
leaving the archived file intact.
Warning
Replacing Previous Contents of Files
If you rename a file into a specification (including
generation number) that already exists, the previous
contents of the new file are replaced and cannot be
recovered. But see Restrictions - Renaming Archived Files,
above.
Related Commands
COPY for making copies of files
Examples
1. Rename a file.
@RENAME ATM-50.SPC ATM-50.PRL
ATM-50.SPC.1 => ATM-50.PRL.1 [OK]
2. Use a wildcard character to rename all files of a given name.
@RENAME ATM-50.* 1-ATM-50.*
ATM-50.BAK.1 => 1-ATM-50.BAK.1 [OK]
ATM-50.PRL.1 => 1-ATM-50.PRL.1 [OK]
3. Access another user directory and transfer to it the files
renamed in Example 2.
@ACCESS <ORBEN>
Password:___
@RENAME 1-ATM-50.* <ORBEN>
1-ATM-50.BAK.1 => <ORBEN>1-ATM-50.BAK.1 [OK]
1-ATM-50.PRL.1 => <ORBEN>1-ATM-50.PRL.1 [OK]
@END-ACCESS <ORBEN>