% @(#)aaaaaa.hlq	17.1.1.1 (ESO-IPG) 01/25/02 17:43:14 
%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
%.COPYRIGHT  (c)  1990 European Southern Observatory
%.IDENT      aaaaaa.hlq
%.AUTHOR     KB, IPG/ESO
%.KEYWORDS   MIDAS, help files, @(@@,@@@)/
%.PURPOSE    On-line help file for the command: @(@@,@@@)/
%.VERSION    1.0  27-JAN-1987 : Creation, KB
%.VERSION    1.1  16-MAY-1991 : Modif, KB
%----------------------------------------------------------------
\noqualifier
\se
SECTION./
\es\co
@@ (@,@a,@s,@c)					16-MAY-1991  KB
\oc\su
@@ proc [par1] ... [par8]
	execute a MIDAS procedure
\us\pu
Purpose: 
           Execute a MIDAS command procedure.
\up\sy
Syntax:
           @@ proc [par1] ... [par8]
\ys\pa
           proc = name of MIDAS command procedure, type defaulted to '.prg'
\\
                or `proc,entry', if command "ENTRY entry" is used in proc.prg
\ap\pa
           par1 ... par8 = up to 8 actual parameters,
\\
                each parameter may be up to 80 chars. long, but total size
                of all parameters together is limited to 132 char.
\ap\no
Note:    
           If no complete filename for proc is given, i.e. including the
           pathname, `@@ proc' searches for the procedure file `proc.prg'
           first in the current directory, and then in all the other
           directories (max. 4) as given in the procedure path.
\\
           This procedure path is set via the Midas command
\\
           SET/MIDAS path=...
\\
           The default being the directory specified via the variable MID_WORK.
\\
           Thus by default Midas looks first for a procedure in the current
           directory and then in the one pointed to by MID_WORK. e.g. 
           $HOME/midwork. Use the command SET/MIDAS path= to change the
           procedure path.
\\
           `@ proc' searches in MID_PROC, which is the directory for the
           MIDAS system procedures.
\\
           `@d proc' searches in MID_PROC/pipeline, which is the directory for
           MIDAS procedures used in the ESO Dataflow System for the VLT.
\\
           `@a proc' searches in APP_PROC, which is the directory for the
           MIDAS application procedures.
\\
           `@s proc' searches in STD_PROC, which is the directory for the
           MIDAS standard reduction procedures.
\\
           `@c proc' searches in CON_PROC, which is the directory for the
           contributed procedures.
\\
           `@p proc' searches in PIPE_PROC, which is the directory for the
           procedures needed for the Pipeline for the different instruments
           of the VLT.
\\
           Don't forget that Unix is case sensitive, so procedure abc.prg is
           a different file than ABC.PRG on a Unix file system!
\on\see
See also:
           RUN, HELP/CL, chapter 3 of Users Manual, volume A
\ees\exs
Examples:
\ex
           @ lobo AK 23.
             Execute procedure MID_PROC:lobo.prg with par1 = AK, par2 = 23.
\xe\ex
           @a gallina mata hari
             Execute procedure APP_PROC:gallina.prg with par1 = mata and
             par2 = hari.
\xe\ex
           @@ cabra.ALL
             Execute command procedure cabra.ALL or if no such file exists in 
             the current directory and if default is still unchanged, execute 
             MID_WORK:cabra.ALL .
\xe\ex
           @@ DRA2:[BIG3.OWN]perro 22.,33.
             Execute command procedure DRA2:[BIG3.OWN]perro.prg
             with par1 = 22.,33. on a VMS system.
\xe\ex
           @@ /users/mine/specs/perro 22.,33.
             Execute command procedure /users/mine/specs/perro.prg
             with par1 = 22.,33. on a Unix system.
\xe \sxe