the old style ifconfig, route and netstat commands does not support all network, especially IPv6, features shipped with modern linux distributions.
Replacement are ip (ifconfig, route) and ss (netstat). Here are some examples.
Continue reading Linux: ip command line examples
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to get the start time of a linux process in an human readable format use the user-defined format of ps with the lstart option.
Continue reading Linux: Get the start time of a process
under linux device tree is a way to describe hardware which is not discoverable.
The kernel uses a compiled version of the device tree. This can be decompiled in an readable formet by the device tree compiler.
Continue reading Linux: Decompile/show a device tree binary file dtb
there are multiple active console connections and you want to know who are currently connected?
Continue reading VMware: List Users who have a active Console Connection to a virtual machine