005-快捷键,host,查看版本

一、系统快捷键

设置

  键盘--查看

  shift+ctrl +print  区域截图至剪切版

  ctrl+alt+箭头     切换工作区

  自定义打开终端快捷键

    设置-》键盘-》自定义:名称:打开终端;命令:/usr/bin/gnome-terminal;点击编辑设置快捷键,如:ctrl+e  只要不冲突即可。

二、修改Host

vi /etc/hosts

添加一行

127.0.0.1 test.r.com 

/etc/rc.d/init.d/network restart

三、几种查看CentOS系统版本和位数的方法查看系统版本:

cat /etc/redhat-release

  CentOS Linux release 7.4.1708 (Core)
cat /proc/version

  Linux version 3.10.0-693.5.2.el7.x86_64 (builder@kbuilder.dev.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-16) (GCC) ) #1 SMP Fri Oct 20 20:32:50 UTC 2017
uname -a

  Linux localhost.localdomain 3.10.0-693.5.2.el7.x86_64 #1 SMP Fri Oct 20 20:32:50 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
cat /etc/issue

  \S
  Kernel \r on an \m
查看64位还是32位:
getconf LONG_BIT

  64
file /bin/ls

  /bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=3d705971a4c4544545cb78fd890d27bf792af6d4, stripped

  

posted @ 2017-12-11 21:17  bjlhx15  阅读(415)  评论(0编辑  收藏  举报
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