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docs/categories/fragments/2019/12/31/个人常用Linux命令.md
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title: 个人常用Linux命令
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author: 查尔斯
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date: 2019/12/31 21:00
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isTop: true
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categories:
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- 杂碎逆袭史
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tags:
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- Linux
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---
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# 个人常用Linux命令
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<!-- more -->
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## 系统相关
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### 查询系统详情
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```shell
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# 详细输出所有信息,依次为内核名称,主机名,内核版本号,内核版本,硬件名,处理器类型,硬件平台类型,操作系统名称
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uname -a
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```
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### 查询系统发行版本
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```shell
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# 只适合Redhat系的Linux
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cat /etc/redhat-release
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```
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### 查看CPU信息
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```shell
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# 逻辑CPU数量和CPU型号
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cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
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```
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```shell
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# CPU真实数量(有时候虽然逻辑CPU是8核,但可能是由两颗4核CPU构成的)
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cat /proc/cpuinfo | grep physical | uniq -c
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```
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### 查询RAM信息(内存)
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```shell
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# 用于查看有关系统 RAM 使用情况的信息(带大小单位)
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free -h
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```
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### 查询ROM信息(磁盘)
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```shell
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# 以磁盘分区为单位查看文件系统,可以获取硬盘被占用了多少空间,目前还剩下多少空间等信息
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df -h
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```
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