SysAdmin Wiki

To compare 2 arrays in ruby, you can take the intersection of the two and see if it's empty: a=[1,2,3,4] b=[2,4,6,7,8] if (a ...

Bash command to print list of sequential host name: for i in `seq 11 15`; do echo "server${i}"; done this will print the follo...

To change timezone in debian, you can use the following 2 steps. 1. Edit /etc/timezone with your desired timezone such as America/New_York...

If your Acer S3-391 fan has a very loud noise and turn on frequently, then this program can help you fix it: Acer S3-391 Fan Fix Original ...

If you need to create a popup overlay in html with page scroll support, the following code can accomplish that. popup_overlay.html: <...