Vbird Linux:
Vim Learning: http://linux.vbird.org/linux_basic/0310vi.php
Bash Shell: http://linux.vbird.org/linux_basic/0320bash.php
Key words of reminder:
/etc/passwd
history
alias
[Tab]
Wildcard
type ---builtin commands
\[Enter]
echo $variable
原文：http://www.cnblogs.com/Geek-GeNE/p/4002358.html