S o n o m a U s e r M a n u a l
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A P P E N D I X C
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S o n o m a U s e r M a n u a l
H E L P F U L L I N U X I N F O R M A T I O N
Text Editors
There are three text editors resident on the Sonoma le system: edit, joe and elvis. All of these
may be useful when needing to edit system conguration les or to view and search within system
log les.
edit is a very simple editor with Wordstar key commands that was originally developed for
extremely memory-limited environments, such as oppy boot disks and embedded Linux appliances.
When EndRun Technologies’ rst generation Linux-based embedded network time servers were in-
troduced, they fell into this category and the edit text editor was appropriate. Now it is included on
the Sonoma le system for legacy reasons, since it has been the default editor for all rst and second
generation EndRun Technologies products. A man page for edit is resident on the system. When
it is rst started, and you did not give it a le name to edit on the command line, it shows a start-up
screen with its command syntax, But once you have opened a le to edit, online help is not available.
It is started by issuing the command edit [file-to-edit], optionally with a le name to edit.
joe is the modern replacement for edit on the Sonoma. It is a full-featured editor with
syntax highlighting and is also based on the Wordstar commands. It is user friendly with easy to nd
help for its key commands, and complete man page documentation. It is the recommended editor for
all purpose use in conguring and monitoring the Sonoma time server. It is started by simply issuing
the command joe [file-to-edit], optionally with a le name to edit.
elvis is a full-featured vi clone which is provided in the Sonoma le system for masochistic
Unix diehards. It is not the least bit user friendly to anyone lacking experience with text mode ap-
plications. If you don’t know what vi is, avoid using this editor! It is started by simply issuing the
command vi [file-to-edit], optionally with a le name to edit.
Change Log-In
Banners
There are three different log-in banners in the Sonoma - the serial port banner, the Telnet banner, and
the SSH banner. You must be logged in as the “root” user in order to edit the rc.local le and change
the log-in banners. Perform the following:
edit /etc/rc.d/rc.local
Change the banners as appropriate. After saving the le, copy it to /boot/etc like this:
cp -p /etc/rc.d/rc.local /boot/etc/rc.d
Then reboot for your changes to take effect.
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