Tips and tricks for ubuntu 12.04 like single line bash scripts for allowing hibernate, adding useful ppa's, etc.

ubuntu-12.04-tips.md

Enable hibernate in the menu at Ubuntu 12.04 (details at https://help.ubuntu.com/12.04/ubuntu-help/power-hibernate.html)

echo -e "[Re-enable hibernate by default]\nIdentity=unix-user:*\nAction=org.freedesktop.upower.hibernate\nResultActive=yes\n" | sudo tee /etc/polkit-1/localauthority/50-local.d/com.ubuntu.enable-hibernate.pkla > /dev/null && echo "All done, now you can hibernate from the menu"

Allow run sudo pm-hibernate without password at Ubuntu 12.04 for selected USER_OR_GROUP

USER_OR_GROUP="plugdev"; echo "%$USER_OR_GROUP ALL=(ALL) NOPASSWD: `which pm-hibernate`" | sudo tee /etc/sudoers.d/hibernate > /dev/null && echo "All done, now you can run 'sudo pm-hibernate' from '$USER_OR_GROUP' without password"

DeaDBeeF - Ultimate Music Player For GNU/Linux

sudo apt-add-repository ppa:alexey-smirnov/deadbeef

How do I fix a “Can't access Dropbox folder” error?

if you put these in /etc/sysctl.conf:

fs.inotify.max_user_watches = 1048576 fs.inotify.max_user_instances = 256

it will fix. eg.

sudo sysctl fs.inotify.max_user_instances=256

details

Samba with ui

apt-get install system-config-samba

GIMP

sudo apt-add-repository ppa:otto-kesselgulasch/gimp

show only username and host at start of command line

add to ~/.bashrc

#show only username and host at start of command line
export PS1='\u@\h$ '