How to add cronjobs to /etc/cron.daily/

Question

• We have to use crontab -e to add a cronjob to crontab.
• And crontab -r to remove cronjobs.
• Here, no Copy & Paste not allowed.

I need to add a script to cron.daily, how to add?

Answer 1

Just drop an executable file (shell script or otherwise) in that folder and Bob's your uncle.

Answer 2

Just place the script into the cron.daily directory; use cp to copy it from wherever it is to start with.

If you need script adding a line to an existing file the easiest way is

echo "Line to add" >> /path/to/file.txt

Which will append the new line to the end of the file.