Unix/Linux Go Back    


NetBSD 6.1.5 - man page for rcorder (netbsd section 8)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


RCORDER(8)			   BSD System Manager's Manual			       RCORDER(8)

NAME
     rcorder -- print a dependency ordering of interdependent files

SYNOPSIS
     rcorder [-k keep] [-s skip] file ...

DESCRIPTION
     rcorder is designed to print out a dependency ordering of a set of interdependent files.
     Typically it is used to find an execution sequence for a set of shell scripts in which cer-
     tain files must be executed before others.

     Each file passed to rcorder should be annotated with special lines (which look like comments
     to the shell) which indicate the dependencies the files have upon certain points in the
     sequence, known as ``conditions'', and which indicate, for each file, which ``conditions''
     may be expected to be filled by that file.

     Within each file, a block containing a series of ``REQUIRE'', ``PROVIDE'', ``BEFORE'' and
     ``KEYWORD'' lines should appear.  The format of the lines is rigid.  Each line must begin
     with a single ``#'', followed by a single space, followed by ``PROVIDE:'', ``REQUIRE:'',
     ``BEFORE:'', or ``KEYWORD:''.  No deviation is permitted.	Each dependency line is then fol-
     lowed by a series of conditions, separated by whitespace.	Multiple ``PROVIDE'',
     ``REQUIRE'', ``BEFORE'' and ``KEYWORD'' lines may appear, but all such lines must appear in
     a sequence without any intervening lines, as once a line that does not follow the format is
     reached, parsing stops.

     The options are as follows:

     -k      Add the specified keyword to the ``keep list''.  If any -k option is given, only
	     those files containing the matching keyword are listed.

     -s      Add the specified keyword to the ``skip list''.  If any -s option is given, files
	     containing the matching keyword are not listed.

      An example block follows:

	   # REQUIRE: networking syslog
	   # REQUIRE: usr
	   # PROVIDE: dns nscd

     This block states that the file in which it appears depends upon the ``networking'',
     ``syslog'', and ``usr'' conditions, and provides the ``dns'' and ``nscd'' conditions.

     A file may contain zero ``PROVIDE'' lines, in which case it provides no conditions, and may
     contain zero ``REQUIRE'' lines, in which case it has no dependencies.  A file containing no
     ``PROVIDE'', ``REQUIRE'', or ``BEFORE'' lines may be output at an arbitrary position in the
     dependency ordering.

     There must be at least one file with no dependencies in the set of arguments passed to
     rcorder in order for it to find a starting place in the dependency ordering.

DIAGNOSTICS
     rcorder may print one of the following error messages and exit with a non-zero status if it
     encounters an error while processing the file list.

     Requirement %s has no providers, aborting.  No file has a ``PROVIDE'' line corresponding to
     a condition present in a ``REQUIRE'' line in another file.

     Circular dependency on provision %s, aborting.  A set of files has a circular dependency
     which was detected while processing the stated condition.

     Circular dependency on file %s, aborting.	A set of files has a circular dependency which
     was detected while processing the stated file.

SEE ALSO
     rc(8)

HISTORY
     The rcorder program first appeared in NetBSD 1.5.

AUTHORS
     Written by Perry E. Metzger <perry@piermont.com> and Matthew R. Green <mrg@eterna.com.au>.

BSD					  April 23, 2003				      BSD
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 03:33 PM.