For the official product documentation for CentOS Linux we need to visit Redhat's documentation site. These in-depth manuals can then be saved locally for later use.
- [Instructor] We've seen elsewhere in this course…that man pages and info pages are easy to access…on the command-line.…We've also seen that we can use the help browser…to get help on graphical applications…as well as man pages and info pages.…However, if we want full product documentation,…we need to go online to get it.…Let's start by going to Red Hat's documentation website…at docs.redhat.com.…Now, scroll down and choose Red Hat Enterprise Linux.…We're using CentOS 7,…which is a Red Hat Enterprise Linux clone,…so we'll be using the documentation for Red Hat.…
We'll want to choose our OS version in the left-hand column.…To check which version of CentOS we're using,…open a terminal by going to Applications,…Favorites, and Terminal.…I'm going to make my terminal fullscreen and zoom in,…now cat /etc/redhat-release…and hit enter.…From this, we can see that my CentOS version is 7.2.1511.…Go ahead and close the terminal…and go back to your web browser.…Since my CentOS version was 7.2.1511,…I'll choose Product Version 7 in the left-hand column.…
- Distinguish the difference between the –help option and the output of the man command.
- Define what the uptime command is used for.
- Compare the more command with the less command.
- State which compression algorithm is built into the tar command.
- Write where all operating system files in Linux are stored.
- List the three mods in vi.