Setting the time and date on the GUI is easy, but command line tools give use more power and flexibility. We cover timedatectl and configure remote time sync.
- [Instructor] Setting the date and time from the GUI…is fairly easy.…Go to Applications, System Tools, Settings,…and click on Date and Time.…This interface is pretty simple,…but it allows you to change the date, time, and time zone…as well as have them automatically updated.…You can also choose a 12 or 24-hour clock.…Our computers get their time information…from various sources.…Every computer has a real-time clock or RTC,…that keeps time when the computer is off.…When the computer is turned on,…the OS reads the real-time clock,…and then keeps the time from that point on.…
If we set up network time protocol, or NTP,…our computer will contact a time server…somewhere on the internet, and adjust the time accordingly.…This method is the most accurate,…but requires a network connection.…To change the date and time settings from the command line,…we'll want to open a terminal.…So close Date and Time, and then go to Applications,…Favorites, Terminal.…I'm going to make my terminal full screen,…and bump my font size.…The command we use on CentOS 7 to manage our date and time…
- 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.
Skill Level Intermediate
Setting Up a Red Hat Enterprise Linux Serverwith Sandra Toner2h 46m Intermediate
Linux: Bash Shell and Scriptswith Kevin Dankwardt2h 46m Intermediate
1. Getting Help
2. Using Basic Commands
3. Navigating File Systems
4. Editing Text
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