export
ctags
make
patch
g++
git 【clone, pull, push, rebase, fetch, merge, origin, master 概念]
vim
gdb
make
ldd
find
grep
sed
less
more
tailf
tail
echo
sudo
pwd
cd
clear
ls
sh
ssh
man
exit
history
top
ifconfig
free
df
du
mkdir
pwd
rm
mv
cp
scp
配置文件：
~/.vimrc
~/.bashrc
ln, link, sort, uniq, tar