debug : using iw command ( netlink debugging )

ABOUT Netlink The Netlink socket family is a Linux kernel interface used for inter-process communication (IPC) between both the kernel and userspace processes, and between different userspace processes, in a way similar to the Unix domain sockets. Similarly to the Unix domain sockets, and unlike INET sockets, Netlink communication cannot traverse host boundaries. However, while …

$_ indicates exactly the last parameter of your last command (GNU Bash)

commandline session $ 4.2.29 8 507—> ls Algorithms bookmark bugs-general debian-howtos firewall kernel linux README beautifulwork books config-files Docs https: language ovlfose $ 4.2.29 9 508—> ls $_ ls: cannot access ls: No such file or directory $ 4.2.29 10 509—> ls vm ls: cannot access vm: No such file or directory $ 4.2.29 11 …