unmount
Common misspelling redirect to umount
TLDR
The correct command is umount (u-mount).View documentation for the correct command
$ tldr umount
DESCRIPTION
unmount is not a valid Linux command. The correct command for unmounting file systems is umount (without the 'n'). This is a common source of confusion for new Linux users. The command name originates from early Unix where shorter command names were preferred.
