Tag: linux

My VPS is running at Ubuntu Linux. The Apache2 Server is serving 6 websites. If, on errors (e.g. out-of-memory), the websites are down until the apache2 server is restarted …

We backup files/data a lot. Usually, we save the backups to a folder regularly (e.g. by a crontab job that runs at a specified interval). How do you keep …

Bash Shell is powerful. We can accomplish many complex jobs based on the abundant commands. This tutorial presents a Bash shell to check a given number to see it …

*.so files under Linux are similar to *.dll on windows. They are both shared library, which contain commonly-used functions/classes. The shared library can be loaded into memory whenever needed …

The Linux Shell provides a useful calculator which is bc. It may be short for ‘bash calculator’. The bc takes the following parameters. root@uploadbeta:~# bc --help usage: bc -h …