Userbie

cat

The cat command is one of the most universal tools, yet all it does is copy standard input to standard output. In combination with the shell this can be very powerful and diverse. Some examples will give a glimpse into the possibilities. The first example is simple, you can use cat to display a file on the screen. If the file is longer than the screen, it will scroll to the end.

paul@debian8:~$ cat /etc/resolv.conf
domain userbie.com 
search userbie.com
nameserver 192.168.1.42