在 CentOS 7(Linux)上初始化查询、文件操作、系统信息查询

佚名 6年前 (2019-05-08) 随笔 254人围观抢沙发百度已收录

一、查看系统信息

命令实在是不要太多，为了防止选择性障碍，一致选择第一种方式，后面的仅作为补充。
方法1：

[root@centos001 ~]# uname -a
Linux centos001 3.10.0-957.5.1.el7.x86_64 #1 SMP Fri Feb 1 14:54:57 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux

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方法2：显示系统程序信息

[root@centos001 ~]# 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]=ceaf496f3aec08afced234f4f36330d3d13a657b, stripped

方法3：

[root@centos001 ~]# cat /proc/version
Linux version 3.10.0-957.5.1.el7.x86_64 (mockbuild@kbuilder.bsys.centos.org) (gcc version 4.8.5 20150623 (Red Hat 4.8.5-36) (GCC) ) #1 SMP Fri Feb 1 14:54:57 UTC 2019

二、查看系统版本

方法1：

[root@centos001 ~]#  lsb_release -a
LSB Version:    :core-4.1-amd64:core-4.1-noarch
Distributor ID:    CentOS
Description:    CentOS Linux release 7.6.1810 (Core) 
Release:    7.6.1810
Codename:    Core

方法2：

[root@centos001 ~]# cat /etc/os-release
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:7"
HOME_URL="https://www.centos.org/"
BUG_REPORT_URL="https://bugs.centos.org/"

CENTOS_MANTISBT_PROJECT="CentOS-7"
CENTOS_MANTISBT_PROJECT_VERSION="7"
REDHAT_SUPPORT_PRODUCT="centos"
REDHAT_SUPPORT_PRODUCT_VERSION="7"

方法3：

[root@centos001 ~]# cat /etc/redhat-release
CentOS Linux release 7.6.1810 (Core)

方法4：

[root@centos001 ~]# rpm -q centos-release
centos-release-7-6.1810.2.el7.centos.x86_64

三、查看安装软件

方法1：

[root@centos001 ~]# yum list installed
Loaded plugins: fastestmirror
Determining fastest mirrors
base                                                                                                                                                                        | 3.6 kB  00:00:00     
epel                                                                                                                                                                        | 4.7 kB  00:00:00     
extras                                                                                                                                                                      | 3.4 kB  00:00:00     
updates                                                                                                                                                                     | 3.4 kB  00:00:00     
(1/7): epel/x86_64/group_gz                                                                                                                                                 |  88 kB  00:00:00     
(2/7): base/7/x86_64/group_gz                                                                                                                                               | 166 kB  00:00:00     
(3/7): epel/x86_64/updateinfo                                                                                                                                               | 994 kB  00:00:00     
(4/7): extras/7/x86_64/primary_db                                                                                                                                           | 201 kB  00:00:00     
(5/7): base/7/x86_64/primary_db                                                                                                                                             | 6.0 MB  00:00:00     
(6/7): epel/x86_64/primary_db                                                                                                                                               | 6.7 MB  00:00:00     
(7/7): updates/7/x86_64/primary_db                                                                                                                                          | 4.2 MB  00:00:00     
Installed Packages
GeoIP.x86_64                                                                                   1.5.0-13.el7                                                                               @anaconda
NetworkManager.x86_64                                                                          1:1.12.0-8.el7_6                                                                           @updates 
NetworkManager-libnm.x86_64                                                                    1:1.12.0-8.el7_6                                                                           @updates