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CONTROL-H
Deletes the last character typed.
Other Special Characters:
-------------------------
RETURN: The return key signals PRIMOS that you have completed typing a
command and that you are ready for PRIMOS to process the command.
BREAK/CONTROL-P: Stops whatever is currently being processed in memory and
will return PRIMOS to your control. To restart a process,
type:
START (abbreviated with S).
CONTROL-S: Stops the scrolling of the output on your terminal for viewing.
CONTROL-Q: Resumes the output scrolling on your terminal for inspection.
SEMICOLON ';': The logical end of line character. The semicolon is used to
enter more than one command on one line.
Getting Help:
-------------
You can get on-line information about the available PRIMOS commands by using
the 'HELP' command. The HELP system is keyword driven. That is, all
information is stored under keywords that indicate the content of the help
files. This is similar to VAX. Entering the single command 'HELP' will enter
the HELP sub-system and will display an informative page of text. The next
page displayed will provide you with a list of topics and their keywords.
These topics include such items as PRIME, RAP, MAIL, and DOC. If you entered
the MAIL keyword, you would be given information concerning the mail sub-
system available to users on P simply enter PRIME to obtain information on all
PRIMOS commands. You could then enter COPY to obtain information on that
specific topic.
Files And Directories:
----------------------
The name of a file or sub-directory may have up to 32 characters. The
filename may contain any of the following characters, with the only
restriction being that the first character of the filename may not be a digit.
Please note that BLANK spaces are NOT allowed ANYWHERE:
A-Z .....alphabet
0-9 .....numeric digits
& .....ampersand
# .....pound sign
$ .....dollar sign
- .....dash/minus sign
* .....asterisk/star
. .....period/dot
/ .....slash/divide sign
Naming Conventions:
-------------------
There are very few restrictions on the name that you may give a file.
However, you should note that many of the compilers (language processors) and
commands on the PRIME will make certain assumptions if you follow certain
guidelines. File name suffixes help to identify the file contents with regard
to the language the source code was written in and the contents of the file.
For instance, if you wrote a PL/1 program and named the file containing the
source code 'PROG1.PL1' (SEGmented loader) would take the binary file, link
all the binary libraries that you specify and produce a file named
'PROG1.SEG', which would contain the binary code necessary to execute the
program. Some common filename suffixes are: F77, PAS, COBOL, PL1G, BASIC,
FTN, CC, SPIT (source files). These all denote separate languages and get
into more advanced programming on PRIMOS. (e.g. FTN=Fortran).
BIN=the binary code produced by the compiler
LIST=the program listing produced by the compiler
SEG=the linked binary code produced by SEG
Some files which do not use standard suffixes may instead use the filename
prefixes to identify the contents of the file. Some common filename prefixes
are:
B Binary code produced by the compiler
L source program Listing
C Command files
$ Temporary work files (e.g. T$0000)
# Seg files
Commands For File Handling:
----------------------------
PRIMOS has several commands to control and access files and file contents.
These commands can be used to list the contents of files and directories, and
to copy, add, delete, edit, and print the contents of files. The capitalized
letters of each are deleted. A LIST must be enclosed in parenthesis.
Close arg ....Closes the file specified by 'arg'. 'Arg' could also be
a list of PRIMOS file unit numbers, or the word 'ALL' which
closes all open files and units.
LIMITS ....Displays information about the login account, including
information about resources allocated and used, grantor, and
expiration date.