eject:tldr:ea0f3
eject: Eject a specific device (the default order is cd-rom, scsi, floppy and tape).
$ eject ${-dev-cdrom}
try on your machine
The command "eject ${-dev-cdrom}" is written in a shell script syntax and is used to eject the CD-ROM drive on a Unix-like system.
Here's an explanation of each component:
- "eject" is the actual command that instructs the system to eject the CD-ROM drive.
- "${-dev-cdrom}" is a variable that holds the device file path of the CD-ROM drive. The dollar sign $ indicates that it is a variable. In this case, "-dev-cdrom" is the name of the variable.
This means that the command is expecting the device file path of the CD-ROM drive to be stored in the "${-dev-cdrom}" variable. The exact value of this variable will depend on the system and how it is set up. It could be something like "/dev/cdrom" or "/dev/sr0".
When the command is executed, it will substitute the value of the "${-dev-cdrom}" variable into the command, resulting in something like "eject /dev/cdrom". Ultimately, this will eject the CD-ROM drive associated with that device file path.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.