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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.

Buy it now, or read it online on Safari Bookshelf.


esdctl [options] command

Control program for the Enlightened Sound Daemon.


-s servername:port

Hostname of the server where esd is running (default is localhost). Port number is optional.



Allow only local clients to access the daemon.


Allow remote clients to access the daemon.

standby, off

Stop sound output.

resume, on

Start sound output.

cache sample

Cache the specified sample in the daemon's memory.

getid name

Retrieve the named sample from the memory.

free name

Free the named sample.

play name

Play the named sample.

loop name

Loop the named sample.

stop name

Stop an ongoing loop at the end of the next cycle.


Get server information.


Get all available information from server: server, player, sample information.

panstream id left right set

Pan for a stream.

pansample id left right set

Pan for a sample. Default left and right values are scaled to 256.


Check whether the server is in standby mode.

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