Lugaru's Epsilon
Programmer's
Editor 14b12
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Epsilon User's Manual and Reference >
Commands by Topic >
Buffers and Files >
Files >
Backup Files
Epsilon doesn't normally keep the previous version
of a file around when you save a modified version. If you want
backups of saved files, you can set the buffer-specific variable
want-backups to 1, using the set-variable command
described in Variables. If this variable is 1,
the first time you save a file in a session, Epsilon will first
preserve the old version by renaming any existing file with that name
to a file with the extension ".bak". For instance, saving a new
version of the file text.c preserves the old version in text.bak. (If
you delete a file's buffer and later read the file again, Epsilon
treats this as a new session and makes a new backup copy the next time
you save.) If want-backups variable is 2, Epsilon will do
this each time you save the file, not just the first time. The
backup-by-renaming variable controls whether Epsilon backs up
files by renaming them (faster) or copying them (necessary in some
environments to preserve attached attributes).
You can change the name Epsilon uses for a backup file by setting the
variable backup-name, which holds a file name template (see the
next section). The default setting %p%b.bak uses the same path
and base file name as the original file but replaces the extension
with .bak.
Epsilon
automatically saves a copy of each modified file periodically, into a
separate file with a name like #file.c.asv#, then deletes the
autosaved file when you tell it to save the original (and when Epsilon
exits). The variable want-auto-save controls this. Epsilon uses
a template (see above) to construct the name of each auto save file,
stored in the variable auto-save-name. Other bits in the
want-auto-save variable let you make auto-saving more verbose,
or tell Epsilon not to automatically delete auto-saved files when
exiting, or when the file is saved normally.
You can alter the number of keystrokes it waits between autosaves by
setting the variable auto-save-count. Epsilon also auto-saves
after you've been idle for 30 seconds; set the
auto-save-idle-seconds variable to alter this number. Very
large buffers will never be auto-saved; see the
auto-save-biggest-file variable to alter this.
Sometimes you may want to explicitly write the buffer out to a file
for backup purposes, but may not want to change the name of the file
associated with the buffer. For that, use the copy-to-file
command on Ctrl-F7. It asks you for the name of a file, and writes the
buffer out to that file, but subsequent Ctrl-x Ctrl-s's will save to the
original file.
Standard bindings:
Epsilon Programmer's Editor 14b12 manual. Copyright (C) 1984, 2020 by Lugaru Software Ltd. All rights reserved.
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