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How to write a bash script to restart a process?
Now all you need to do is start this bash script (asynchronously, probably), and it will monitor myserver and restart it as necessary. If you want to start the monitor on boot (making the server “survive” reboots), you can schedule it in your user’s cron (1) with an @reboot rule. Open your cron rules with crontab:
How to execute a script upon logout / reboot / shutdown in Ubuntu?
To execute a script upon logout: 1 Add the following line in /etc/lightdm/lightdm.conf file: session-cleanup-script=/path/to/script 2 You have to restart LightDM in order for this change to take effect. To do this go in TTY1 using Ctrl + Alt + F1, login… More
How to execute Linux-systemd script at shutdown only?
The install section tells systemd to add this service to the list that must be completed before poweroff.target or halt.target will be considered reached. This service is installed and running on my system. I have tested most of the post in here and various sites.
Is there a shutdown script for Ubuntu Mint?
If you find this thread after June 2016, Ubuntu and its derivatives including Mint will be using systemd to control system initialization and shutdown. I had problems with the old approach so researched the systemd way.
How to exit when errors occur in bash scripts?
For example, if we run ls –fake-option then we’ll see an informative error message as follows. ls: unrecognized option ‘–fake-option’ Try ‘ls –help’ for more information. “ls –fake-option” command filed with exit code 2. The global solution is often fine, but sometimes you only care if certain commands fail.
Is there a way I can automatically restart PHP script?
A PHP Script can also restart itself with PCNTL. Disclaimer: the point of this exercise is only to prove that PHP is perfectly capable of restarting itself and to answer the question: Is there a way I can automatically restart a PHP script whenever it exits, regardless of whether it has been exited properly, or has terminated due to an error?
How to test if a command succeeded in Bash?
It’s probably the most common command to use in an if, which can lead to the assumption that it’s part of the shell’s syntax. But if you want to test whether a command succeeded or not, use the command itself directly with if, as shown above. For small things that you want to happen if a shell command works, you can use the && construct: