zsh と oh-my-zsh を入れて、zshに再入門した ref: http://qiita.com/uchiko/items/253088bb0d7bbf574bff

.zshrc

export LANG=ja_JP.UTF-8
alias vi="vim -u NONE --noplugin"
alias v=vim
alias g=git
alias pl=perl
export PATH="$HOME/.rbenv/bin:$PATH"
eval "$(rbenv init -)"

などなど...

file0.txt

$ wget http://downloads.sourceforge.net/project/zsh/zsh/5.0.5/zsh-5.0.5.tar.bz2?r=http%3A%2F%2Fsourceforge.net%2Fprojects%2Fzsh%2Ffiles%2F&ts=1401584908&use_mirror=jaist
$ tar jxvf zsh-5.0.5.tar.bz2
$ cd zsh-5.0.5
$ ./configure && make && make install

file1.txt

$  git clone git://github.com/robbyrussell/oh-my-zsh.git ~/.oh-my-zsh
$ cp ~/.oh-my-zsh/templates/zshrc.zsh-template ~/.zshrc

file5.txt

$ cat /etc/shells
/bin/sh
/bin/bash
/sbin/nologin
/bin/tcsh
/bin/csh
/bin/ksh
/usr/local/bin/zsh

file6.txt

$ chsh -s /usr/local/bin/zsh