centOS上不支持rar解壓，需要額外安裝軟件，收費版是unrar，免費版是unar
unar在centOS上安裝需要源碼編譯，下面是安裝方法：
1.安裝依賴
yum install gnustep-base-devel
yum install zlib-devel
yum install bzip2-devel
yum install openssl-devel
yum install libicu-devel
2.安裝編譯依賴
yum install gcc-objc.x86_64
yun install gcc-objc++.x86_64
yum install mingw64-gcc-objc.x86_64
yum install mingw64-gcc-objc++.x86_64
3.下載並編譯源碼
https://theunarchiver.com/downloads/TheUnarchiverSource.zip
cd XADMaster
make -f Makefile.linux
4.安裝
編譯成功后XADMaster下出現unar可執行文件
復制到/usr/bin,/usr/local/bin即可