I tried using crontab -l from my terminal as root, it showed no crontab for root. So I tried crontab -e, it returns the following no crontab for root - using an empty one  888and then the cursor starts blinking. I am not able to quit or save the file. I am new to Linux, so I don't have any idea. What is the problem here? Anyone any ideas?
Crontab suspicious activity
terminal;cron;gnome terminal
When you run the command crontab -e it typically defaults to the vi or vim editors. If you type the command Shift+Z+Z you can save any changes in this editor and exit.To add entries to your crontab using this method you'll need to learn how to use this editor more extensively, which is beyond the scope of this question, and should be easy to find many tutorials on the internet.If vi/vim is too much of a learning curve you can instruct crontab to use a different editor. Another console based editor that's easier for new people to Linux is nano, it's typically installed on most distros that I'm familiar with.$ EDITOR=nano crontab -eNOTE: To use nano's menu all the carets (aka ^X) commands at the bottom require the use of the Ctrl key. So to exit, Ctrl+X, for example.You can of course use any editor here. A easy GUI based editor, if you're using a GNOME based desktop, would be gedit:$ EDITOR=gedit crontab -eThis last one might be a challenge to use, for a different set of reasons, if your primary desktop is being run by a user other than root, which it likely is, so I would go with nano for starters.