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ethtool:tldr:2282b
The command "ethtool --show-features ${eth0}" is used to display the supported and enabled features for a network interface.
Here's a breakdown of the different parts of the command:
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"ethtool": This is the command itself. "ethtool" is a Linux utility used for controlling and querying network interface settings and statistics.
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"--show-features": This is an option for the ethtool command. It tells ethtool to display the features of the specified network interface.
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"${eth0}": This is a placeholder for the network interface name. It is likely a variable, and the value of the variable is expected to be the name of the network interface. In this case, it is expected that the variable "eth0" contains the name of the network interface.
So, when you run this command, it will use the ethtool utility to show the supported and enabled features for the network interface specified by the variable "eth0". The specific features that are displayed will depend on the capabilities of the network interface itself.