AT&T UNIX™PC Unix System V Users Manual - tenox

UA ( 4) (AT&T UNIX PC only ) UA ( 4)
In pathname specifications, the following substitutions are performed:
Filecabinet $HOMEIFilecabinet (or I if $HOME = I)
System I
Floppy disk fmnt
Wastebasket $LOGDIRIWastebasket
Clipboard $LOGDIRIClipboard
Parent
HOME and LOGDIR are the environment variables for the home
directory and the login directory. They are the same in all cases
except for the superuser, whose home directory is /, and whose
login directory is the login directory of some selected user.
FM and UA , in spite of the description given above, don't actually
create any new processes. In order to minimize the drain on
system resources (primarily swap space), these commands merely
create a new window with the appropriate display. The user
agent knows about multiple windows, and responds to commands
from any of the windows that it owns.
The windows created via UA and FM commands normally last
until they are explicitly closed by the user. The -e option can be
used on both these commands to create ephemeral windows.
These windows are automatically closed after any action is taken
on any of their objects. This option is useful in reducing "window
clutter."
EXEC and SH (and all of their variations) require complete pathname
specifications.
UA searches in the fusr/Iibfua directory for the menu objects
file, and then in the login directory. If the file is found in both
places, then the two files are merged to form a single menu.
In the case of an action specification for Create, %o refers to the
name entered by the user in response to a prompt, and not to any
preselected object.
Environment Variables
The user agent maintains the following environment variables and
passes them on to all applications that it invokes:
SHELL Path of default shell (initially /bin/sh)
EDIT Path of default editor (initially /bin/ed)
LOGDIR
Path of login directory
In expert mode, the user can alter the environment variables
SHELL and EDIT, using the user agent preferences form.
The user agent reads the values of its environment variables from
the Environment files. The user agent Preferences form edits
the Environment file in the login directory when a change is
made.
SEE ALSO
uaupd( 1 ), phone(7).
- 8 -