MRCS_EXP(1)                      RPN UTILITY                       MRCS_EXP(1)
NAME
     mrcs_exp - modify the RCSPATH environment variable.

USAGE
       mrcs_exp [-RCSPATH path1 ...] [-+]

DESCRIPTION
        mrcs_exp is a command of the etagere system (environnement de  travail
automatise de gestion d'experiences avec RCS) used to modify the value of  the
RCSPATH environment variable for the current experiment.  It is thus  possible
to add, modify or delete  paths to RCS master directories  for an experiment.

        At least one of the arguments  must be present when invoking  mrcs_exp
since,when no argument  is given,  mrcs_exp substitutes the  current value  of
RCSPATH for the current value of RCSPATH (in other words, it does nothing very
useful).

        To operate in full-screen mode, the user enters the command:

        mrcs_exp -+

the current value of RCSPATH   is displayed on the  screen. The user may  then
modify the value and press CTL-X to activate it.

        To bypass the full-screen mode, enter the command:

        mrcs_exp -RCSPATH path1:rev1 path2:rev2 ...

The value supplied will become the current RCSPATH in the .exper_cour file.

        RCSPATH-is a variable containing the paths  to the various RCS  master
                directories to search when looking for source files. The value
                of RCSPATH is kept in the .exper_cour file. The rev portion of
                a path is optional.

                The user may invoke setenv  to initialize RCSPATH or supply  a
                value through ouv_exp or mrcs_exp.

                RCSPATH has the following format:

                path1:rev1 path2:rev2 path3:rev3 ...

                where rev  is the  optional rcs  revision number  to use  when
                extracting a file from a RCS master directory.  Rev may be  an
                integer or real value.   If rev is  real, the revision  number
                obtained will  match exactly  -provided  that it  exists-  the
                revision number  given in  RCSPATH.   If the  revision  number
                specified does not exists, the previous revision to the number
                given will be retrieved. If rev is an integer value,  the most
                recent version corresponding to the revision number given will
                be extracted.

AUTHOR
        James Caveen - RPN - november 1991
        Latest revision: March 1993

NOTES

        The value of RCSPATH is saved when an experiment is closed through
frm_exp.  It is therefore not possible to modify permanently the value of
RCSPATH for an experiment that has already been closed.

        mrcs_exp only works when there is an active experiment in the current
directory.

        The user must use the make_exp utility after modifying the value of
RCSPATH in order to update the dependencies contained in the description files
Makefile and make_cdk.

NOTE
        See also clt_exp(1), cltr_exp(1), dir_exp(1), eff_exp(1), etagere(1),
frm_exp(1), grep_exp(1), hst_exp(1), intro_exp(1), make_exp(1), mdm_exp(1),
menu_exp(1), omd_exp(1), omdr_exp(1), ouv_exp(1), qui_exp(1), rev_exp(1),
smod_exp(1) and sor_exp(1).