NAME

     env_val - print value of named environment variable.

SYNOPSIS

     env_val [ -dh ] prefix suffix

DESCRIPTION

     Env_val takes an environment variable in two distinct pieces
     (prefix  and  suffix), concatenates the two together to form
     one name, and outputs the value corresponding  to  the  con-
     catenated  name,  if found. Env_val is intended for use from
     within the shadow scripts. It was not designed  to  be  used
     interactively.

  Options
     The following options are available:

     -d   Debug mode. Causes the program  to  issue  a  formatted
          write to stderr.

     -h   program prints usage message.

EXAMPLES

          env_val DEPT  ROOT

          env_val AR  CH

     The former example checks the environment variable  DEPTROOT
     and  outputs  its  value,  or the error message "env_val: No
     environment variable DEPTROOT", if  DEPTROOT  has  not  been
     set. The latter checks ARCH (the host architecture variable)
     and returns the host architecture type.

SEE ALSO

     shadow(1)

AUTHOR

     Terri L. Fischer
     Tulsa Research Center, Amoco Production

BUGS

     In some instances, an environment variable that is typed  in
     the  wrong case will return null, instead of a non-exsistent
     variable message.

COPYRIGHT

     copyright 2001, Amoco Production Company
               All Rights Reserved
          an affiliate of BP America Inc.