The 'help' command output

BIAS main help page, Using 'less':

Use PgUp / PgDn , Cursor keys and Arrows, 'q' to QUIT.
/' to search.


help              Get this screen.
quit              Exit BIAS. ( alias 'exit' ).

exp  [ttt.t [i]]  Normal expose for 'ttt.t' sec using filter 'filtno'i.
mexp [ttt[i[nnn]] nnn multiple exposures of time ttt using filter i.    
dark [ttt]        Dark exposure for 'ttt' sec.
mdark [ttt[nnn]]  nnn multiple dark exposures of time ttt.
focus [ttt]       Focus exposure, each for ttt seconds.
abort             Stop an ongoing integration or readout.
readout           Stops an integration and reads the ccd.
addtime ttt       Adds ttt seconds to an integration.  'ttt' can be negative, 
                  if the resulting remaining integration time is < 0,
                  the integration is stopped and the ccd is readout.
hold              Hold an ongoing integration (close shutter).
resume            Resume an integration. (open shutter).
ccdreadout+       Set automatic readout flag.
ccdreadout-       Do not readout the ccd after an integration.
preclear+         Do clear ccd before an integration.
preclear-         Do NOT clear the ccd before an integration.

save              Save the image in next filename.
save8             Save the image as 8 bit FITS.

tint [ ttt.t ]    Set default integration time in sec.
mult [ nnn ]      Set default no. of multiple integrations.

xbeg [ nnn ]      Set start x value of CCD readout
ybeg [ nnn ]      Set start y value of CCD readout.
xsize [ nnn ]     Set x size in true pixel value. 
ysize [ nnn ]     Set y size in true pixel value.
xbin [ nn ]       Set x-binning.
ybin [ nn ]       Set y-binning.
bin [ nn ]        Set x and y-binning.
resetxy           Reset the CCD geometry values to defaults.
xoverscan [ nn ]  Set x overscan
yoverscan [ nn ]  Set y overscan


gainh, gainl      Set gain high or low.
ampl XX           Select amplifier. Valid values are A, B, or AB.
mpp+, mpp-        Set MPP mode on or off.

autosave+         Turn on automatic saving of images on local disk.
autosave-         Turn off automatic saving of images on local disk.

remsave+          Turn on saving on remote disk. The remote work station and
                  path must be defined in '.biasrc'.
remsave-          Turn off saving on remote machine 

impath [ path ]   Change the default image directory. Use with care.
remsystem [ abcdef ]
                  Set remote unix system ( machine name ).
rempath [ path ]  Set path on remote machine.
filename [ filename ]
                  Specify the output file names, the length <= 8 char, 
                  1. char must be a letter, last 4 must be numbers.
                  ( Be carefull about this, as the last filename may 
                  automatically be updated in '.biasrc').
                     
autoshow+         Show images in SaoImage. 
autoshow-         Do not show images in SaoImage.

ls                Unix list 'ls'  command in impath directory.
ll                Unix list 'ls -l' command in impath directory.

imexamine         Start an Iraf-like imex, valid 'imex' commands are:
                  q:    back to BIAS commands.
                  z:    print 10x10 box values
                  a:    aperture photometry
                  m:    show statistics from data in 'imexbox'
                  c:    plot total column
                  l:    plot total line
                  s:    surface plot
                  e:    contour plot
                  v-v :     vector plot from 'v' is hit until next 'v' is hit.
                  u-u :     vector plot symmetrically around first 'u'.
                  h:    histogram
                  = :   print the plot on the laserprinter.  
                  X:    Bin the image in x-direction and display a graph.
                  Y:    Bin the image in y-direction and display a graph.

imexbox [ nn ]    Define the 'aperture' box for surface- and contour plots.
aperture [ nn ]   Set the size of the aperture used in 'imexamine'. The size is
                  adjusted to an uneven value.

magzero [ zz.z ]  Set the magnitude offset for magnitude calculation in the i
                  'imexamine' 'a' function.
            	  The value can be fixed at startup in the .biasrc file.

disp [filename]   Display an image from disk in SaoImage. ( alias 'ld' )
seth [ nnn ]      Set highcut for displayed image. ( alias 'z2' )
setl [ nnn ]      Set lowcut for displayed image. ( alias 'z1' )
z+, z-            Zoom in or out, this works independant of SaoImage. If you
                  zoom with SaoImage buttons, the displayed value in the status
                  window is NOT updated.

object [text]     Specify an object name for the FITS header. Max. 20 char.     
                  The text is saved untill changed.

comment [text]    Comments to put in FITS header. Max. 40 char. The text is
                  cleared after storing in the FITS header.
xcomment [text]   Extra comment field to put in FITS header. Not cleared 
                  after written in the FITS header.

head [filename]   View a FITS file header. Use 'q' to quit.

logon             Start a log of your command screen. Default on.
logoff            Stop the log.

!xxxxxx           Execute the Unix command 'xxxxxx'. 

saoimage          Restart saoimage.


Miscellaneous commands:

sleep nn          Wait for nn seconds. ( for use in batch run ).
wait              Wait for 'return' key.
rbias             Re-read the '.biasrc'. 
stat              Ask if camera is Busy or Ready. Answers 'B' or 'R'.
run filename      Run a batch with commands any command ( except this ). 

xrun command boxsize
                  Goes into SaoImage, when Return or Space is hit, the box is
                  saved in a textfile 'command.data'. The command is then run in
                  an xterm window.
reftemp [ ttt ]   Set the CCD temperature. ( not all cameras ):