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Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

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ypxfr

ypxfr [options] mapname

NFS/NIS command. Transfer an NIS map from the server to the local host by making use of normal NIS services. ypxfr creates a temporary map in the directory /var/yp/domain (where domain is the default domain for the local host), fills it by enumerating the map's entries, and fetches the map parameters and loads them. If run interactively, ypxfr writes its output to the terminal. However, if it is invoked without a controlling terminal, its output is sent to syslogd.

Options

-c

Do not send a "Clear current map" request to the local ypserv process.

-C tid prog ipadd port

This option is for use only by ypserv. When ypserv invokes ypxfr, it specifies that ypxfr should call back a yppush process at the host with IP address ipadd, registered as program number prog, listening on port port, and waiting for a response to transaction tid.

-d domain

Specify a domain other than the default domain.

-f

Force the transfer to occur even if the version on the master server is older than the local version.

-h host

Get the map from host instead of querying NIS for the map's master server. host may be specified by name or IP address.

-p dir

Use dir as the path to the NIS map directory instead of /var/yp.

-s domain

Specify a source domain from which to transfer a map that should be the same across domains (such as the services.byname map).