gonix 是用 Go 语言重写的一些 Linux/Unix 下的常用工具，已完成的有：
basename [works]
cat [works]
cp [works, very incomplete]
dirname [ complete ]
echo [works]
false [ complete ]
head [works]
mkdir [works]
nl [works]
pwd [works]
seq [works]
sleep [ complete ]
tail [works inefficiently, needs to be rewritten like head]
tee [ complete ]
touch [works]
true [ complete ]
xxd [works]
yes [ complete ]
