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What Are “Runlevels” on Linux?

When a Linux system boots, it enters its default runlevel and runs the startup scripts associated with that runlevel. You can also switch between runlevels – for example, there’s a runlevel designed for recovery and maint...

The Linux Directory Structure, Explained

If you’re coming from Windows, the Linux file system structure can seem particularly alien. The C:\ drive and drive letters are gone, replaced by a / and cryptic-sounding directories, most of which have three letter names....

How to Root Your Nexus Phone or Tablet

Use the Nexus Root Toolkit to quickly root your Nexus devices, whether you’ve got a Nexus 7, Galaxy Nexus, or even a Nexus S. Rooting allows you to use powerful apps that don’t work in Android’s default sandbox....
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