Commands by niek (1)

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Installing debian on fedora (chrooted)

a function to find the fastest DNS server
http://public-dns.info gives a list of online dns servers. you need to change the country in url (br in this url) with your country code. this command need some time to ping all IP in list.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

worse alternative to
worse alternative to ctrl+r: grep the history removing duplicates without sorting (case insensitive search).

list all file extensions in a directory
Works on current directory, with built-in sorting.

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Show 'Hardware path'-style tree of all devices in Linux

What is My WAN IP?
The curl command retrieve the HTML text containing the IP address. The grep command picks out the IP address from that HTML text.

Convert seconds into minutes and seconds
This is a very simple way to input a large number of seconds and get a more useful value in minutes and seconds.


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