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I want to write a simple script that will check to see if a program is open every hour using the whenever gem. If that application is not open I want it to start up the application. I can't find out how to launch an application with Ruby. Pardon the ignorance. I am new.
Run an application in various ways:
Kernel#system runs my_program in a subshell and returns true if the subshell exits successfully, false otherwise.
system("my_program")
Kernel#exec replaces the currently executing process with my_program.
exec("my_program")
%x() will run the program and return the output.
%x(my_program)
You can use the Kernal#system method like this:
system 'open -n /Applications/Appname.app'
With #system you'll get a return value of true or false, enabling you to do some flow control incase there's an issue (i.e. maybe the app doesn't exist in the system)
Related
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I have my minecraft server.jar application that prints a log to the terminal. While I know you can log output from a specific shell by using the script command, that seems a bit heavy for my application. I want to scan each line of the shell and check if it's useful before grabbing it. What c++ functions are able to do this?
Even better, if I could start the program only when I've triggered my server.jar file that'd be really efficient.
Here is potentially relevant information on reading through a pipeline.
Instead of reading through a pipeline. I have done some research on the spigot site and have discovered that it uses log4j as its logger. I can grab information via this and push it to a database using hikariCP/JBDC and take from there.
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Below is an image that shows how to set the time automatically from Internet via GUI
I'm trying to write a bash scripts that sets the time the same way as if one does this via GUI
However, I cannot find the proper command line that does so.
thanks in advance
Please check out timedatectl, which is the systemd standard way to configure the time zone and time server. Documentation is below:
https://www.freedesktop.org/software/systemd/man/timedatectl.html
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I'm trying to create an .exe file that shuts down a remote computer using VB.NET.
I can achieve this using the shutdown command from a .bat file but my goal is to achieve this using an .exe file which takes a computer name and reboots it.
Is this possible?
If so, how should I do it?
I assume that you have a program asking for a IP in a textbox.
So, the easiest way to do this is to run this code after the user finishes typing the IP:
Process.Start("shutdown.exe -s -t 0 -m " & TextBox1.Text)
Now, this is the most simplistic way of doing so and I haven't tried out this code, so I can't guarantee you that it works. I'd also recommend you to add validation to check if the user input is a IP.
I hope this helped you. -Luca
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I'm working now with cucumber project and I face with a small problem and need help)
I run some feature using commend:
cucumber features/path_to_feature/some_feature.feature
How can I dynamically change some_feature.feature to other_feature.feature?
Not entirely sure what exactly you are looking for.
If you are running the command from the command line interface, you can wrap your execution commands in a standalone ruby / shell script and pass the feature names dynamically.
OR
You could also use the cucumber config file (cucumber.yml) if you want to execute particular feature files.
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Is it possible to log all system calls made by a specified program? For example I have a GUI tool, wrapping some command-line based tools. I need to know how does it start command-line programs, what file manipulations is it doing. Actually I want to repeat this actions in integration purposes.
UPD: API Monitor did this job
CreatePorocessA API call - shows external programs and parameters selected process is calling
These things can be handy in case...
http://j00ru.vexillium.org/?p=1010
http://billauer.co.il/blog/2010/07/strace-ltrace-win32-api-dll/
Second one helped me in some other scenario.. Let me know whether it works for you or not...!!