5.5.1. - File Hierarchy
After installation and site configuration
on a computer running, for example, both a four-circle and
a
z-axis
diffractometer,
the spec file hierarchies would appear something like the following,
|-camac
|-chelp
|-contents
|-dpmake
|-fourc
/usr/local/bin--------|-scans
|-showscans
|-show_state
|-tidy_spec
|-wiz_passwd
|-zaxis
|-README
|-chk_file
|-edconf |-config
|-four.mac |-settings
|-fourc---------|-conf.mac
| |-userfiles-----|
|
|-data_pipe-----|-data_pipe.mak
| |-data_pipe.o
| |-pipe_test.c
| |-user_pipe.h
|
|-help----------|-angles
| |-ackno
| |-changes
| |-config
| |- ...
|
|-hgr-----------|-x11filt
| |-pcfilt
| |- ...
/usr/local/lib/spec.d-|-io_enable
|-show.awk
|-site.mac
|-site_f.mac
|-standard.mac |-config
|-zaxi.mac |-settings |-user_ttyL
|-zaxis---------|-conf.mac |-user_ttyM
|-userfiles-----|-user_ttyP
|-user_ttyS
|- ...
where
/usr/local/bin
is
the installation directory, configured as
INSDIR in the
Makefile,
and
/usr/local/lib/spec.d
is
SPECD, the auxiliary file directory.
Of the programs installed in
/usr/local/bin,
contents
and
showscans
are described in the
User Manual,
while the
camac
utility program is described below.
The
chelp
utility is a stand-alone help file viewer that allows browsing of the
spec help files without having to run spec.
The subdirectory
fourc
contains the files specific to the four-circle diffractometer.
The name
fourc
matches the name by which the program is invoked.
The first four letters of the name determine
the geometry configuration.
If a single computer is to control two spectrometers, they could be
called
fourcL
and
fourcR,
and the
Install
program would create
separate subdirectories called by those names for each.
Within the
diffractometer directory is the
associated configuration file,
config,
which specifies the hardware and the motor parameters to be used.
Also associated with each diffractometer is
the
settings
file that tracks changes in
the motor position and limit settings.
The
edconf
program can be used to to modify the contents of these two files.
The subdirectory
userfiles
contains each user's state files on a per terminal basis.
These files allow the user to exit spec and restart at a later
time, retaining macro definitions, variable assignments, etc.
The spec administrator may, from time to time,
delete old state files for users not expected back again,
especially if disk space is a problem.
The
tidy_spec
program reports on the disk usage of all the
userfiles
directorys and provides options for removing files by
age, user, tty or spectrometer geometry.
Type
tidy_spec -
from the shell for usage options.
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