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Quickest way to sort/display # of occurences

show lines that appear in both file1 and file2

Route outbound SMTP connections through a addtional IP address rather than your primary

Clean pacman cache in arch linux, manjaro linux
If not success clean cache and try again Code: [Select]

Stream YouTube URL directly to mplayer
The original doesn't work for me - but this does. I'm guessing that Youtube updated the video page so the original doesn't work.

View all images
So you are in directory with loads of pictures laying around and you need to quickly scan through them all

Rename files in batch

Play music from youtube without download

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.

Show the UUID of a filesystem or partition
Shows the UUID of the given partition (here /dev/sda7). Doesn't need to be root.


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