/bin= binary ['baɪnərɪ]  二进制数
/dev = device [dɪ'vaɪs] 设备；图案
/etc = et cetera .及其他
/lib = library ['laɪ,brɛrɪ] 库、程序库
/proc = process ['prɑsɛs] 过程,进程、程序
/sbin = Superuser binary
/tmp = temporary ['tɛmpə,rɛrɪ] 临时的;暂时的
/usr = Unix Shared Resources
/var = variable ['vɛrɪəb!] 变量
/mnt =

/srv=

/opt = option ['ɑpʃən] 选择;选择权