linux小命令
本文主要记录了我在工作中用到的一些linux命令
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1、查询linux系统是32位还是64位
<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ -->zhaolei@zhaolei?:~# file /usr/bin/whoami /usr/bin/whoami: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.15, stripped
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2、自动登入SSH
<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ -->zhaolei@zhaolei:~$ ssh-keygen -t rsa zhaolei@zhaolei:~$ ssh-copy-id -i ~/.ssh/id_rsa.pub root@192.168.1.100 zhaolei@zhaolei:~$ ssh root@192.168.1.100
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3、修改用户登入名
<!-- Code highlighting produced by Actipro CodeHighlighter (freeware) http://www.CodeHighlighter.com/ -->zhaolei@zhaolei:~$ sudo usermod -l flyingzl zhaolei
下次登入后，zhaolei就无法登入了，改用flyingzl登入，登入后的命令行效果如下：
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