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Merge files, joining each line in one line

Restore mysql database uncompressing on the fly.
This way you keep the file compressed saving disk space. Other way less optimal using named pipes: mysql -uroot -p'passwd' database <

a function to create a box of '=' characters around a given string.
The function 'box' takes either one or two arguments. The first argument is a line of text to be boxed, the second argument (optional) is a character to use to draw the box. By default, the drawing character will be '='. The function 'n()' is a helper function used to draw the upper and lower lines of the box, its arguments are a length, and an character to print. (I used 'n' because 'line', 'ln' and 'l' are all commonly used)

Scan all open ports without any required program

Check host port access using only Bash:

your terminal sings
you know the song... sing along

Simulate typing

Download all manuals RedHat 7 (CentOS/Fedora) with one command in Linux

Grep all non-ascii character in file
It will highlight non-ascii character in a file. those character can cause problem for some application parsing ascii file.

Check if the LHC has destroyed the world
This says if the LHC has destroyed the world. Run it in a loop to monitor the state of Earth. Might not work reliable, if the world has actually been destroyed.


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