常用命令

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