Quick notes:

### VIM TIPS ###
1) <Ctrl>+l to switch off highlights in vim
2) ds" - to remove "" around a word
3) \\cc   - comment out
3.5) \\cu - uncomment
4) cs]} - surround with {}
5) :%s/foo/bar/g - exchange all instances of foo with bar
6) ctrl+R - redo

2) Start ghci with gloss, so that it does not hang:
ghci -fno-ghci-sandbox 

### SYSTEMA MAINTENANCE ###
3) UPDATE PORTAGE:
Emerge --sync
emerge --update --deep --with-bdeps=y --newuse world
emerge --update --deep --newuse world
# delete unused dependencies:
emerge --depclean 
# rebuild missing dependencies
# revdep-rebuild
revdep-rebuild -ip

### Kernel Upgrade###
# copy old config
make oldconfig
make && make modules_install
cp ./arch/x86/boot/bzImage /boot/kernel-3.10.7-gentoo
# edit /boot/grub/grub.conf
# eselect:
eselect kernel list
eselect kernel set 1


### EMACS TIPS ###
# turn off line-wrapping:
M-x toggle-truncate-lines


### MISC ###
4) Find out your own IP:
wget -q -O - checkip.dyndns.org|sed -e 's/.*Current IP Address: //' -e 's/<.*$//'
5)check running services:
rc-status
6)make ghc keep intermediary files: it will create (won't delete technically) /tmp/ghc${pid} with intermediate files
ghc -keep-tmp-files foo.hs

### PYTHON ### python ###
python -m cProfile foo.py

# iptables
/etc/init.d/iptables 
/etc/conf.d/iptables


### GIT ###
http://git-scm.com/book/en/Git-on-the-Server-Hosted-Git

# add all files in 
git add ./Projects
# commit added files
git commit -a
# write the changes
git push


### XMONAD ###
# application fast start
# WINDOWS button is the one with the MSWindows logo on it
WINDOWS-p

### EMACS ###
## CPP
# Enable semantic auto-complete (?)
semantic-complete-self-insert
# Browses the local document with your browser. On a module import line, the document of the module is browsed. On a function or type, its document is browsed.
M-C-d 
# Envoke help on a topic:
C-h f iedit-mode <RET>
# Assigning keys
(global-set-key (kbd "C-c a") 'doodlebug)
# not sure what it is but may be useful:
(lookup-key (current-global-map) (kbd "C-c a"))
# Turn on/off line breaks:
(toggle-truncate-lines)