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smartctl:tldr:d0c98
The command you provided is:
sudo smartctl --capabilities ${-dev-sdX}
Let's break it down:
-
sudo
: It is a command that allows you to execute another command with administrative privileges (as the superuser or root user). -
smartctl
: It is a utility to monitor and analyze SMART (Self-Monitoring, Analysis, and Reporting Technology) data of storage devices such as hard drives and solid-state drives. -
--capabilities
: It is an option or flag of thesmartctl
command that displays the capabilities and features of the specified storage device. -
${-dev-sdX}
: This is a placeholder for the device identifier. In the command,-dev-sdX
indicates the device path for a specific storage device. The "X" represents a letter like "a," "b," "c," etc., and usually indicates individual disk drives (e.g.,/dev/sda
,/dev/sdb
, etc.). The ${} syntax suggests this is a parameter or variable, but it seems to be misplaced in this command. It should be outside the braces if intended to be used as a variable.
To use this command, you should replace ${-dev-sdX}
with the actual device identifier you want to analyze (e.g., /dev/sda
). It is important to note that manipulating storage devices with SmartCTL requires administrative privileges, hence the usage of sudo
.