Creating cron entry on server using ssh login within shell script

Question

I need to upload a file (bash script) to a remote sever. I use the scp command. After the file has been copied to the remote server I want to create a cron entry in the crontab file on the remote server. However, the file upload and writing the cron entry need to occur within a bash shell script so that I only need to execute the script on my local machine and the script is copied to the remote host and the cron entry is written to the crontab.

Is there a way that I can use an ssh command, within the script, that logs me into the remote server, opens the crontab file and writes the cron entry.

Any help is very welcome

Answer 1

I would:

1. extract the user's crontab with crontab -l > somefile
2. modify that file with the desired job
3. import the new crontab with crontab somefile