---
name: Linux Administration Commands
slug: linux-administration-commands
category: DevOps
description: A collection of useful Linux commands for remote reboot, memory management, I/O statistics, and process backgrounding. Use when you need quick reference for these tasks.
github: "https://github.com/luofengmacheng/algorithms/tree/master/skill.md"
language: C++
stars: 69
forks: 70
install: "git clone https://github.com/luofengmacheng/algorithms"
added: 2026-07-16T03:20:40.536Z
last_synced: 2026-07-16T03:20:40.536Z
canonical_url: "https://dirskills.com/skills/linux-administration-commands"
---

# Linux Administration Commands

A collection of useful Linux commands for remote reboot, memory management, I/O statistics, and process backgrounding. Use when you need quick reference for these tasks.

**Install:** `git clone https://github.com/luofengmacheng/algorithms`

## README

1 远程重启计算机
```
echo b > /proc/sysrq-trigger
```

2 查看内存使用情况
```
free -m //以MB为单位查看内存使用情况
```

3 修改计算机的可用内存

对于Redhat系(包括Fedora)

修改/etc/grub.conf，在kernel一行最后添加mem=1G就能够将可用内存修改为1GB
```
title Red Hat Enterprise Linux Server (2.6.27)
        root (hd0,1)
        kernel /vmlinuz-2.6.27 ro root=/dev/VolGroup00/LogVol00 rhgb quiet acpi=ht mem=1G
        initrd /initrd-2.6.27.img
```

4 查看系统的IO统计信息
```
iostat -k 3 //以KB打印结果，3秒显示一次
```

5 将一个进程放入后台，并使它不受前台的影响，特别是用于远程连接时
```
./test //运行程序
^Z //ctrl+z使程序暂停
bg %(jobid) //将程序放入后台运行
disown -h %(jobid)
```