Can you run a remote script from crontab?
The remote server solaris9 sparc has exactly the same version ssh installed. When I run this from the command line it runs without any issues and the remote script is executed. However I have inserted my script to my crontab file and the ssh command is executed as I can see the process but it never completes.
How does crontab read data from standard input?
If file is a dash (” – “), the crontab data is read from standard input. Specifies the user whose crontab is to be viewed or modified. If this option is not given, crontab opens the crontab of the user who ran crontab.
Which is better rsync or crontab for backup?
Though most cloud server providers have backup or snapshot services (usually not free), it’s better to have your own backup plan. The rsync command is a ideal tool for copying and synchronizing files and directories to a remote computer, while the crontab command is used to schedule jobs to be executed periodically.
How many command entries are there in crontab?
Cron command entries Each cron command entry in the crontab file has five time and date fields (followed by a username, only if it’s the system crontab file), followed by a command.
How to write shell script to SSH to remote machine?
Install sshpass using, apt-get install sshpass then edit the script and put your linux machines IPs, usernames and password in respective order. After that run that script.
How to use cronjob to run ssh command?
I don’t think ssh-agent is going to help in this case because the cronjob isn’t a subprocess of one that has the ssh-agent communication params in its environment. You’ll need to set up a passwordless login for this to work. so that 1) ssh will produce verbose debugging output on stderr and 2) stderr will be redirected along with stdout.
How to SSH to multiple machines at the same time?
The accepted answer sshes to machines sequentially. In case you want to ssh to multiple machines and run some long-running commands like scp concurrently on them, run the ssh command as a background process. Connect to remote machine using Expect Script.