Not to forget useful vi and bash settings

.bash_profile

alias opera=opera --disable-remote-fonts
alias grep='grep --color=auto'
alias unigrep='grep -P "[^\x00-\x7F]"'
alias mkdir="mkdir -p"
alias ls='ls -lh --color=auto'
HISTCONTROL=ignoredups:ignorespace
HISTSIZE=100000
HISTFILESIZE=200000

.vimrc

set mouse=r
syntax enable
set tabstop=4
set softtabstop=4
set expandtab
set number
set cursorline
set hlsearch
set incsearch  
set showmatch
nmap <F1> <Esc>:set nonumber<cr>                                                                                                                                             
nmap <F2> <Esc>:set number<cr>
nmap <F5> <Esc>yy<cr>
nmap <F6> <Esc>p<cr>
nmap <F8> <Esc>dd<cr>
nmap <F10> <Esc>:wq!<cr>
nmap <F12> <Esc>:q!<cr>

Not sure about ‘number’ setting, if interferes with the clipboard annoyingly, so I can turn them off.