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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.



eject

eject [options] [device]

Eject removable media such as a CD-ROM, floppy, tape, or JAZ or ZIP disk. You may name the device by its /dev or /mnt filename. The /dev and /mnt prefixes are optional for any items in the /dev and /mnt directories. If no device is named, it is assumed that "cdrom" should be ejected.

Options

The eject command takes the following option flags:

-h

Display help information.

-v, --verbose

Verbose mode: display additional information about actions.

-d, --default

List the default device name rather than doing anything.

-a, --auto on|1|off|0

Set the auto-eject mode to on or off (equivalent to 1 or 0, respectively). If auto-eject mode is on, the device is ejected when closed or unmounted.

-c, --changerslot slotnumber

If using a CD-ROM changer, select a CD from one of the slots. Slots are enumerated starting with 0, and the CD-ROM drive must not be playing music or mounted to read data.

-t, --trayclose

Close the CD-ROM drive. Not all drives will respond to this command.

-x, --cdspeed speed

Set the speed multiplier for the CD-ROM to an integer, usually a power of 2. Not all devices support this command. Setting the speed to 0 indicates that the drive should operate at its maximum speed.

-n, --noop

Do not perform any actions; merely display the actions that would be performed.

-r, --cdrom

Use CD-ROM commands to eject the drive. Normally, the system will try all methods (CD-ROM, SCSI, floppy, tape) to eject.

-s, --scsi

Use SCSI commands to eject the drive. Normally, the system will try all methods (CD-ROM, SCSI, floppy, tape) to eject.

-f, --floppy

Use floppy commands to eject the drive. Normally, the system will try all methods (CD-ROM, SCSI, floppy, tape) to eject.

-q, --tape

Use tape commands to eject the drive. Normally, the system will try all methods (CD-ROM, SCSI, floppy, tape) to eject.

-p, --proc

Use the mounted files listed in /proc/mounts rather than in /etc/mtab.

-V, --version

Display version information, then quit.


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