NAME

gcan, homespool, gspool − interface to gnot laser-printers

SYNOPSIS

­gcan [ ­option ...  ] [ ­file ...  ] ­homespool ­gspool

DESCRIPTION

This command prints ­files (standard input by default) on a gnot laser printer.  Troff(1) output and ordinary text are generally recognized and processed appropriately; in any case the first option can be used to specify the type of input:

­-sb Bitmap files.  (See bitmap(6)).

­-sc ordinary text. 

­-sd ­troff output. 

­-sm MIDI output. 

­-sr ­TYPE=rle run-length-encoded bitmaps. 

The destination printer is determined in one of the following ways, in decreasing order of precedence:

option ­-d ­dest
environment variable ­candest
printer named in file ­/sys/lib/candest

These options are common to all classes of input:

­-- No more options. 

­-dg Destination is printer outside of graphics lab. 

­-du Destination is printer in dirty room. 

­-dt Destination is printer in 2C465 (tom’s office). 

­-p Output goes to ­/usr/$user/pspool for proofreading. 

-ffile Output goes to ­file for debugging. 

­-G Output goes to ­/usr/$user/spool for local printing. 

­-H Suppress header page. 

­-I Do not attempt page reversal (no page number index is generated). 

-ln Set number of lines per page (forces ­c service even if data look like troff).

-%n Print odd-numbered pages if n=1, even-numbered pages if n=2.

­-D Turn on debugging. 

-o...  Print only those pages whose numbers appear in the list (e.g., -o 1,3,5-8). 

-O...  Like -o, except pages are counted sequentially, i.e., troff-assigned page numbers are ignored.  (Both options have the same effect on non-troff files.) 

These options are only valid with the types of input indicated:

-mn Set magnification to ­n (type b). 

-sn Set point size to ­n (type c). 

-xn Move the image ­n pixels left (types c, d, r). 

-yn Move the image ­n pixels down (types c, d, r). 

­homespool initializes the files needed for a private spooler; ­gspool starts such a spooler.  See the ­-G option. 

FILES

­/sys/lib/candest
name of default printer.

­/usr/$user/pspool
proofreading spool area.

­/usr/$user/spool
spool area.

SEE ALSO

troff(1).

BUGS

More input classes should be divined from the data. 

Plan 9  —  January 03, 1993