The code below came from here and here.

Today I suddenly want to know how many posts I posted in the past year. I used the following commands:

Today I found a useful Google feature: Google Takeout, with which you can export all your google data out of Google.

From here.

For Microsoft is replacing MSN messenger to Skype, it’s time to consider use Skype in Ubuntu, here is the instructions how to install Skype in Ubuntu(from here):

“SSH key pair” can be used to ssh access. Generating such a pair is as easy as following the below instructions. One key is that you can change the default output directory/file when you’re prompted to do so in line 3.

Today I got this error when using github:

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$ git pull origin master
# ...
# Agent admitted failure to sign using the key.
# debug1: No more authentication methods to try.
# Permission denied (publickey).

From here.