![Forrest logo](/images/logo.png)
badblocks:tldr:6cb2f
The command "sudo badblocks ${-dev-sdX}" is used to run the badblocks utility with root permissions (through the "sudo" command) on a specific storage device. Here's a breakdown of the command components:
-
"sudo": This is a command used in Unix-like systems to execute a command with superuser privileges. It allows you to perform administrative tasks that require root access.
-
"badblocks": This is a command-line utility in Linux used to scan and identify bad blocks on a storage device such as a hard disk or solid-state drive (SSD). Bad blocks are damaged or malfunctioning sectors on the disk that may indicate impending disk failure.
-
"${-dev-sdX}": This part of the command is called a variable. In this case, it represents a specific storage device to be scanned. The placeholder "sdX" is replaced with the name of the desired storage device, such as "sda" or "sdb". The "-dev-" prefix is used to specify that it is a device.
Putting it all together, the command "sudo badblocks ${-dev-sdX}" runs the badblocks utility with root privileges to scan and identify bad blocks on the specified storage device.