IBM 5150 User Manual

COPY-Backing Up One File
Sometimes you will find it useful to copy only one file.
You might
want to copy one file instead of a whole
diskette when:
• Only one file
of a whole diskette has been changed
and needs to be backed up.
• You want
to make extensive changes to a file or
when you're not too sure of the effect of the
changes.
It is safer to change a copy of the file
rather than the original.
• You
want to build a new file based on the contents
of an "old" file-similar to copying a letter and
then marking
up the copy to make a new letter.
• You need
two copies of a file. For example, if you
want to give a program you wrote to a friend,
you'd probably want to give a copy of the program
and
not your original program.
Let's use some diagrams
to illustrate the various
possibilities with COPY.
Assume
that two of the files on the original diskette are
LJCORS and DIARY, and
that the file to be copied is
LJCORS.
• The file (LJCORS) is copied
to another diskette
and the name
is the same on both diskettes:
Original
Back-up
JUCORSI
DOS 3-65

IBM 5150 Specifications

General

Brand	IBM
Model	5150
Category	Desktop
Language	English