services_mkdb man page on FreeBSD

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

     services_mkdb — generate the services databases

     services_mkdb [-q] [-o database] [file]
     services_mkdb -u [file]

     services_mkdb creates a db(3) database for the specified file.  If no
     file is specified, then /etc/services is used.  The database is installed
     into /var/db/services.db.	The file must be in the correct format (see

     The options are as follows:

     -o database
	     Put the output databases in the named file.

     -q	     Don't warn about duplicate services.

     -u	     Print the services file to stdout, omitting duplicate entries and

     The databases are used by the C library services routines (see

     services_mkdb exits zero on success, non-zero on failure.

     /var/db/services.db       The current services database.
     /var/db/services.db.tmp   A temporary file.
     /etc/services	       The current services file.

     db(3), getservent(3), services(5)

     Because services_mkdb guarantees not to install a partial destination
     file it must build a temporary file in the same file system and if suc‐
     cessful use rename(2) to install over the destination file.

     If services_mkdb fails it will leave the previous version of the destina‐
     tion file intact.

BSD				 April 4, 2010				   BSD

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