Crontab editing

I am trying to edit a cron, but I am not able to save.

I edit the file and select exit and then save.

After that it is going to this screen of the print below where I do not know what to do.

Can anyone help me with this.

Thank you!


have you use sudo crontab -e to edit your cronjobs ?

Yes I am using crontab -e

With nano editor, you have to use :
CTRL + O to save change you have made to cronjobs
CTRL + X to exit and apply new cronjobs

CTRL + O and CTRL + X did not work
but CTRL + X and Enter work
Anyway, thank you very much for your attention.