网上下载rar 压缩文件的使用，在linux在我们需要对其进行解压缩，这个时候，我们需要安装 rar相关的文件，来进行解压缩。

1. 下载

我们进入rarlab网站，进行下载 rar for linux x64

2. 使用 tar 命令 解压 （*.tar 用 tar –xvf ）

Downloads tar -xvf rarlinux-x64-5.6.0.tar.gz 

3. 进入文件夹make (需要 管理员权限)

rar cat makefile 
###################################################################
# Installing RAR executables, configuration files and SFX modules #
# to appropriate directories                   #
###################################################################
PREFIX=/usr/local
install:
  mkdir -p $(PREFIX)/bin
  mkdir -p $(PREFIX)/lib
  cp rar unrar $(PREFIX)/bin
  cp rarfiles.lst /etc
  cp default.sfx $(PREFIX)/lib%   

如果不进行make 需要在命令所在的文件夹执行命令，或者把文件夹加入环境变量中。

3. 最后，可以使用 unrar 进行解压， 使用 rar 命令，进行压缩。

 ~ unrar x [file]

我们 可以直接输入 unrar 查看帮助

 rar ./unrar 
UNRAR 5.60 freeware   Copyright (c) 1993-2018 Alexander Roshal
Usage:   unrar <command> -<switch 1> -<switch N> <archive> <files...>
        <@listfiles...> <path_to_extract\>
<Commands>
 e       Extract files without archived paths
 l[t[a],b]   List archive contents [technical[all], bare]
 p       Print file to stdout
 t       Test archive files
 v[t[a],b]   Verbosely list archive contents [technical[all],bare]
 x       Extract files with full path
<Switches>
 -       Stop switches scanning
 @[+]     Disable [enable] file lists
 ad      Append archive name to destination path
 ag[format]  Generate archive name using the current date
 ai      Ignore file attributes
 ap<path>   Set path inside archive
 c-      Disable comments show
 cfg-     Disable read configuration
 cl      Convert names to lower case
 cu      Convert names to upper case
 dh      Open shared files
 ep      Exclude paths from names
 ep3      Expand paths to full including the drive letter
 f       Freshen files
 id[c,d,p,q]  Disable messages
 ierr     Send all messages to stderr
 inul     Disable all messages
 kb      Keep broken extracted files
 n<file>    Additionally filter included files
 n@      Read additional filter masks from stdin
 n@<list>   Read additional filter masks from list file
 o[+|-]    Set the overwrite mode
 ol[a]     Process symbolic links as the link [absolute paths]
 or      Rename files automatically
 ow      Save or restore file owner and group
 p[password]  Set password
 p-      Do not query password
 r       Recurse subdirectories
 sc<chr>[obj] Specify the character set
 sl<size>   Process files with size less than specified
 sm<size>   Process files with size more than specified
 ta<date>   Process files modified after <date> in YYYYMMDDHHMMSS format
 tb<date>   Process files modified before <date> in YYYYMMDDHHMMSS format
 tn<time>   Process files newer than <time>
 to<time>   Process files older than <time>
 ts[m|c|a]   Save or restore file time (modification, creation, access)
 u       Update files
 v       List all volumes
 ver[n]    File version control
 vp      Pause before each volume
 x<file>    Exclude specified file
 x@      Read file names to exclude from stdin
 x@<list>   Exclude files listed in specified list file
 y       Assume Yes on all queries