eject- Unix, Linux Command


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NAME

eject eject removable media

SYNOPSIS

eject -h
eject [-vnrsfmqp] [<name>]
eject [-vn] -d
eject [-vn] -a on|off|1|0 [<name>]
eject [-vn] -c slot [<name>]
eject [-vn] -i on|off|1|0 [<name>]
eject [-vn] -t [<name>]
eject [-vn] -T [<name>]
eject [-vn] -x <speed> [<name>]
eject [-vn] -X [<name>]
eject -V

DESCRIPTION

Eject-eject allows removable media (typically an optical disc) to be ejected under software control. The command can also control some multi-disc CD-ROM changers, the auto-eject feature supported by some devices, and close the disc tray of some CD-ROM drives.

The device corresponding to is ejected. The name can be a device file or mount point, either a full path or with the leading "/dev" or "/mnt" omitted. If no name is specified, the default name "cdrom" is used.

There are four different methods of ejecting, depending on whether the device is a CD-ROM, SCSI device, removable floppy, or tape. By default eject tries all four methods in order until it succeeds.

If the device is currently mounted, it is unmounted before ejecting.

Options

Tag Description
-h, --help This option causes eject to display a brief description of the command options.
-v, --verbose This makes eject run in verbose mode; more information is displayed about what the command is doing.
-d, --default If invoked with this option, eject lists the default device name.
-a on|1|off|0, --auto This option controls the auto-eject mode, supported by some devices. When enabled, the drive automatically ejects when the device is closed.
-c <slot>, --changerslot With this option a CD slot can be selected from an ATAPI/IDE CD-ROM changer. Linux 2.0 or higher is required to use this feature. The CD-ROM drive can not be in use (mounted data CD or playing a music CD) for a change request to work. Please also note that the first slot of the changer is referred to as 0, not 1.
-i on|1|off|0 This option controls locking of the hardware eject button. When enabled, the drive will not be ejected when the button is pressed. This is useful when you are carrying a laptop in a bag or case and don't want it to eject if the button is inadvertently pressed.
-t, --trayclose With this option the drive is given a CD-ROM tray close command. Not all devices support this command.
-T, --traytoggle With this option the drive is given a CD-ROM tray close command if it's opened, and a CD-ROM tray eject command if it's closed. Not all devices support this command, because it uses the above CD-ROM tray close command.
-x <speed>, --cdspeed With this option the drive is given a CD-ROM select speed command. The speed argument is a number indicating the desired speed (e.g. 8 for 8X speed), or 0 for maximum data rate. Not all devices support this command and you can only specify speeds that the drive is capable of. Every time the media is changed this option is cleared. This option can be used alone, or with the -t and -c options.
-X, --listspeed With this option the CD-ROM drive will be probed to detect the available speeds. The output is a list of speeds which can be used as an argument of the -x option. This only works with Linux 2.6.13 or higher, on previous versions solely the maximum speed will be reported. Also note that some drive may not correctly report the speed and therefore this option does not work with them.
-n, --noop With this option the selected device is displayed but no action is performed.
-r, --cdrom This option specifies that the drive should be ejected using a CDROM eject command.
-s, --cdrom This option specifies that the drive should be ejected using SCSI commands.
-f, --floppy This option specifies that the drive should be ejected using a removable floppy disk eject command.
-q, --tape This option specifies that the drive should be ejected using a tape drive offline command.
-p, --proc This option allow you to use /proc/mounts instead /etc/mtab. It also passes the -n option to umount.
-m, --no-unmount This option allows eject to work with device drivers which automatically mount removable media and therefore must be always mounted. The option tells eject to not try to unmount the given device, even if it is mounted according to /etc/mtab or /proc/mounts.
-V, --version This option causes eject to display the program version and exit.

EXAMPLES

Example-1:

To Eject the default device, type eject command on prompt.

# eject

output:
There wont be any output on console.

Example-2:

To eject a device or mount point named cdrom.

# eject cdrom

output:
There wont be any output on console. if there is mount point, it will be unmounted, type, df or mount command before and after running command

Example-3:

To eject device using the device name.

# eject /dev/cdrom

output:
There wont be any output on console. if there is mount point, it will be unmounted, type, df or mount command before and after running command

Example-4:

user can eject media using the mount point.

# eject /mnt/cdrom/

output:
There wont be any output on console. if there is mount point, it will be unmounted, type, df or mount command before and after running command

Example-5:

To eject IDE device.

# eject hdd

output:
There wont be any output on console. if there is mount point, it will be unmounted, type, df or mount command before and after running command



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