Useful tips for everyday
What is the difference between crontab and etc crontab? The difference is that the crontab command is the interface provided by the system for users…
How to avoid update statement locking out the UPDATE statement? Note, once the records are inserted in the table, the value for OldColumn does not…
How to load a layer in QGIS using Python? The first operation is to select the Python Console from the Plugins menu: Then, if you…
Why do supersonic aircraft have delta wings? Benefits of a delta wing: Since a low relative thickness keeps wave drag down (a drag component which…
How do I edit a picture in one frame? Open Fotor and click “Edit a Photo”. Upload a photo you want to modify. Click “Frame”…
How do you simulate a relay in LTSpice? You can use a voltage controlled switch to simulate the contacts (Just called SW in LTSpice). Set…
How to set new document type in TextMate? Under Files in TextMate → Preferences… ) you can set “New document type” which is used by…
When to use St _ contains-PostGIS in Pip? Performed by the GEOS module Enhanced: 2.3.0 Enhancement to PIP short-circuit extended to support MultiPoints with few…
How to Add a picture attribute in QGIS? Select image from the list: Click the Insert field button. QGIS will add the phrase [% “image”…
How do I use dotfiles in Ubuntu? The setup process will: Download the dotfiles on your computer (by default it will suggest ~/projects/dotfiles ). Create…