LINUX

* KeyboardLayout umstellen:

<blockquote> loadkeys de
setxkbmap de </blockquote>

Networking with DEBIAN jessie

<blockquote> invoke-rc.d networking restart </blockquote>

Note:
' invoke-rc.d networking $ACTION' is exactly the same as running '/etc/init.d/networking $ACTION '

* Having multiple interfaces and you need to ifdown/ifup all of them at once:

<blockquote> sudo invoke-rc.d networking stop && invoke-rc.d networking start </blockquote>

* Dateien nach Alter anzeigen: <blockquote> ls -alt </blockquote>

Dateigrößen

<blockquote> du -h | sort -h | less
df -h
ncdu
ls -la
</blockquote>

NixOS

NixOS official manual

<blockquote> nixos-rebuild switch </blockquote>

<blockquote> nix-env -i paket </blockquote>

<blockquote> nix-env -i paket –arg config '{ allowUnfree = true; }' </blockquote>