1 If your wooden pallets contain low-grade engineered wood or cardboard, they may also contain formaldehyde and harbor all kinds of critters you don't want to know about.
Command shell overview. The command shell is a separate software program that provides direct communication between the user and the operating system. The non-graphical command shell user interface provides the environment in which you run character-based applications and utilities.
One of the basic command in linux shell is the ls. The ls unix command is one of the most used in dealing with shell. Basically the ls command is use to list files and subdirectory of the directory. It accepts a lot of options and depending on your needs regex patterns are also accepted. We will go through each examples on the use of ls.