title: How to extract the Android NDK package?
body: <p>My OS is CentOS 32-bit.</p>
  
  <p>I want to extract the package with 7-zip,
  install 7-zip with rpm without error.
  but when I extract the NDK package,it doesn't work.
  like this:</p>
  
  <pre><code>[root@localhost ~]# ls
  anaconda-ks.cfg                 jni-test
  android-ndk-r10e-linux-x86.bin  p7zip-9.20.1-1.el5.rf.i386.rpm
  install.log                     p7zip-plugins-9.20.1-1.el5.rf.i386.rpm
  install.log.syslog
  [root@localhost ~]# 7z x android-ndk-r10e-linux-x86.bin 
  
  7-Zip 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18
  p7zip Version 9.20 (locale=zh_CN.UTF-8,Utf16=on,HugeFiles=on,1 CPU)
  
  Processing archive: android-ndk-r10e-linux-x86.bin
  
  Error: Can not open file as archive
  </code></pre>
  
  <p>According to Google's official document operation：</p>
  
  <pre><code>[root@localhost ~]# ll
  总用量 307344
  -rw-------. 1 root root      1096 6月  25 17:41 anaconda-ks.cfg
  -rwxr-xr-x. 1 root root 309844799 6月  25 21:24 android-ndk-r10e-linux-x86.bin
  -rw-r--r--. 1 root root      9119 6月  25 17:41 install.log
  -rw-r--r--. 1 root root      3091 6月  25 17:41 install.log.syslog
  drwxr-xr-x. 2 root root      4096 6月  25 20:04 jni-test
  -rw-r--r--. 1 root root   4455529 4月  20 2011 p7zip-9.20.1-1.el5.rf.i386.rpm
  -rw-r--r--. 1 root root    382577 4月  20 2011 p7zip-plugins-9.20.1-1.el5.rf.i386.rpm
  [root@localhost ~]# ./android-ndk-r10e-linux-x86.bin 
  
  7-Zip SFX 9.20  Copyright (c) 1999-2010 Igor Pavlov  2010-11-18
  p7zip Version 9.20 (locale=zh_CN.UTF-8,Utf16=on,HugeFiles=on,1 CPU)
  
  Processing archive: ./android-ndk-r10e-linux-x86.bin
  
  Error: Can not open file as archive
  
  Archive Errors: 1
  [root@localhost ~]# file android-ndk-r10e-linux-x86.bin 
  android-ndk-r10e-linux-x86.bin: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, stripped
  </code></pre>
  
  <p>Why?</p>
  
  <p><strong>UPDATE:</strong>
        The cause of this problem is that the MD5 value is not the same.</p>