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Test a weekly cron job [closed]
...ne, e.g.:
* * * * * crontest /command/to/be/tested --param1 --param2
So now cron will run your command every minute, but crontest will ensure that only one instance runs at a time. If the command takes time to run, you can do a "screen -x" to attach and watch it run. If the command is a scrip...
R memory management / cannot allocate vector of size n Mb
...to a minimum when you need to make objects of this size. Use gc() to clear now unused memory, or, better only create the object you need in one session.
If the above cannot help, get a 64-bit machine with as much RAM as you can afford, and install 64-bit R.
If you cannot do that there are many o...
How to change line width in IntelliJ (from 120 character)
...rom the depths of my heart and my soul, you have my undying gratitude, for now and always.
– Darth Egregious
Oct 5 '17 at 21:04
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Why are Where and Select outperforming just Select?
...);
int result2 = myCollection.Sum(mc => mc.IsValid ? mc.Value : 0);
Now here's the kicker:
LINQ uses deferred execution. Thus, while it may appear that result1 iterates over the collection twice, it actually only iterates over it once. The Where() condition is actually applied during the S...
How to completely remove an issue from GitHub?
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Update Nov 2018: You now can delete your issues!
See "Github - remove issues entered in error"
At May 2018, original answer:
Three 8 years later, and closing issues remains the answer (still no deletion possible).
See "The Ghost of Issues P...
How to return an empty ActiveRecord relation?
...and it takes an argument, depending on the value of the argument, I might know that there will not be any matches, but I still want to return a relation, not an empty array:
...
View contents of database file in Android Studio
...database and select Save As.... Save it anywhere you want on your PC.
Now, open the SQLiteBrowser you installed. Click on 'open database', navigate to the location you saved the database file, and open. You can now view the contents of your database.
To view your database on your mobile devi...
How to check for DLL dependency?
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I've read that this is now dated, is there anything more current?
– TankorSmash
Jun 25 '14 at 4:02
6
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Git - working on wrong branch - how to copy changes to existing topic branch
..."temp" (or any unused name you choose) from master. Checked out files will now be checked out in temp and not in master.
check in changes to temp (master is untouched)
Everything is now checked in and it is possible to check out an existing branch. Check out the wanted branch (the branch I wanted to...
What does “./bin/www” do in Express 4.x?
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Because the app.js file that was generated by the Express 4 generator is now a Node.js module, it can no longer be started independently as an app (unless you modify the code). The module must be loaded in a Node.js file and started via the Node.js file. The Node.js file is ./bin/www in this case....