Don’t forget to back up
Back up: A SysAdmin must back up the entire system, and always verify the backup.
Backing up is the most basic task.
Good practice begins with good habits. One of the habits that I have made over the years is to back up a file before editing it, either in the file path or by creating a backup directory:
Figure 10.40 – Backing up before modifying
On the surface, it doesn’t seem like a big task. However, if you incorporate this step into your tasks, then you have a simple backup of the files that you work with.
Besides copying files to change, another good habit is to create a package that contains archives or compressed files.
Let’s see how this works.
Archiving and compression
First of all, note the difference between an archive file and a compressed file:
- An archive file consists of files and directories stored in a single file. The archive file remains uncompressed –...
