2012-11-17 Linux教科書 https://www.lpi.or.jp/linuxtext/file/linuxtext_ver2.0.0.pdf https://www.lpi.or.jp/linuxservertext/file/linux_server_text-2.0.1.pdf https://www.lpi.or.jp/linuxsystemtext/file/linuxsystemtext_ver1.0.1.pdf linuxtext_ver2.0.0 Linux Server Text-2.0.1 linuxsystemtext_ver1.0.1