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btrfs-check:tldr:f85ca
The given command is used to check the integrity of data stored in a Btrfs file system. Here is the breakdown:
-
sudo
: This is a command in Linux that allows users to execute commands with administrative or root privileges. It is used here to ensure that the following command is run with the necessary permissions. -
btrfs
: This is the command used to interact with Btrfs file systems in Linux. -
check
: This is a subcommand ofbtrfs
and is used to perform various checks on the Btrfs file system. -
--check-data-csum
: This option instructs thebtrfs check
command to verify the checksums of the data blocks stored on the Btrfs file system. It ensures that the data integrity has not been compromised. -
${path-to-partition}
: This is a placeholder for the actual path to the Btrfs partition or device that you want to check. You need to replace${path-to-partition}
with the correct path, such as/dev/sdb1
or/mnt/btrfs
.
When you run this command with the correct path, it will initiate a check on the specified Btrfs partition, looking for any data block checksum errors. If any errors are found, the command will display information about them.