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.
abort                        Stop an ongoing integration or readout.
readout                      Stops an integration and reads the ccd.
addt 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 read.

save                         Save the image in next filename.

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

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.
resetxy                      reset the CCD geometry values to defaults.

gainh, gainl                 Set gain high or low.

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.

filename [ filen ]           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.

imex                         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 till 'v'.
                             u-u :     vector plot symmetrically around first 'u'.
                             X :       plot sum of all lines.
                             Y :       plot sum of all colums.
                             = :       print the plot on the laserprinter.  

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
                             '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.

head                         View the current 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 ).

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.