dumpe2fs:tldr:69e9c

The command "dumpe2fs -f ${-dev-sdXN}" is used to display the information about a specific ext2, ext3, or ext4 file system.

Here is an explanation of each part of the command:

• "dumpe2fs" is the actual command that runs the dumpe2fs program. It is used to dump ext2/ext3/ext4 filesystem information.
• "-f" is an option that stands for "force". It is used to force the command under certain conditions, such as when the file system is mounted. In this case, it forces the command to execute even if there are potential risks or it is already mounted.
• "${-dev-sdXN}" is a placeholder indicating the specific device and partition where the file system resides. This part needs to be replaced with the actual device and partition notation.

For example, if you want to get information about the file system on the /dev/sdb1 partition, you would use "dumpe2fs -f /dev/sdb1" as the command. The "-dev-sdXN" placeholder is replaced with "/dev/sdb1" in this case.