(Linux系统之dool命令行工具的基本使用)
一、dool命令行工具介绍
Dool 是一个命令行工具，用于监控系统的许多方面：CPU、内存、网络、平均负载等。它还包括一个强大的插件架构，可以监控其他系统指标。
二、本地系统环境检查
1.检查系统版本
[root@jeven ~]# 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"
2.检查系统内核版本
[root@jeven ~]# uname -r
6.1.8-1.el7.elrepo.x86_64
三、下载dool软件包
1.创建下载目录
[root@jeven ~]# mkdir -p /data/dool
[root@jeven ~]# cd /data/dool
[root@jeven dool]#
2.下载dool
https://github.com/scottchiefbaker/dool.git
四、安装dool
1.安装python3
yum -y install python3
2.安装dool
[root@jeven dool]# cd dool/
[root@jeven dool]# ls
AUTHORS ChangeLog COPYING docs dool examples install.py Makefile packaging plugins README.md
[root@jeven dool]# python3 install.py
You are root, doing a local install
Installing binaries to /usr/bin/
Installing plugins to /usr/share/dool/
Installing manpages to /usr/share/man/man1/
Install complete. Dool installed to /usr/bin/dool
五、dool的命令帮助
[root@jeven dool]# dool --help
Usage: dool [options] [delay] [count]
Versatile tool for generating system resource statistics
Dool options:
-c, --cpu enable cpu stats
-C 0,3,total include cpu0, cpu3 and total
-d, --disk enable disk stats
-D total,hda include hda and total
-g, --page enable page stats
-i, --int enable interrupt stats
-I 5,eth2 include int5 and interrupt used by eth2
-l, --load enable load stats
-m, --mem enable memory stats
-n, --net enable network stats
-N eth1,total include eth1 and total
-p, --proc enable process stats
-r, --io enable io stats (I/O requests completed)
-s, --swap enable swap stats
-S swap1,total include swap1 and total
-t, --time enable time/date output
-T, --epoch enable time counter (seconds since epoch)
-y, --sys enable system stats
--aio enable aio stats
--fs, --filesystem enable fs stats
--ipc enable ipc stats
--lock enable lock stats
--raw enable raw stats
--socket enable socket stats
--tcp enable tcp stats
--udp enable udp stats
--unix enable unix stats
--vm enable vm stats
--vm-adv enable advanced vm stats
--zones enable zoneinfo stats
--list list all available plugins
--<plugin-name> enable external plugin by name (see --list)
--defaults equals -cdnlt
--more equals -cdnmplt
-a, --all equals -cdngmyplt
-f, --full automatically expand -C, -D, -I, -N and -S lists
-v, --vmstat equals -pmgdsc -D total
--bits force bits for values expressed in bytes
--bytes force bytes for output measurements
--float force float values on screen
--integer force integer values on screen
--bw, --black-on-white change colors for white background terminal
--color force colors
--nocolor disable colors
--noheaders disable repetitive headers
--noupdate disable intermediate updates
--output file write CSV output to file
--profile show profiling statistics when exiting dool
--ascii output table in ascii not unicode box drawing
delay is the delay in seconds between each update (default: 1)
count is the number of updates to display before exiting (default: unlimited)
六、dool的基本使用
1.直接使用dool监控系统
[root@jeven dool]# dool
Using default plugins: cpu, disk, net, load
┄┄total┄cpu┄usage┄┄┬┄dsk/total┄┬┄net/total┄┬┄┄┄load┄avg┄┄┄┬┄┄┄┄┄system┄┄┄┄
usr sys idl wai stl│ read writ│ recv send│ 1m 5m 15m │ time
0 0 99 0 0│ 373K 1639K│ 0 0 │0.05 0.09 0.06│Feb-11 12:08:29
0 0 100 0 0│ 0 0 │ 960B 8816B│0.05 0.09 0.06│Feb-11 12:08:30
0 1 99 0 0│ 0 0 │ 960B 3440B│0.05 0.09 0.06│Feb-11 12:08:31
0 0 100 0 0│ 0 0 │ 480B 2960B│0.05 0.09 0.06│Feb-11 12:08:32
0 0 100 0 0│ 0 0 │ 480B 2960B│0.05 0.09 0.06│Feb-11 12:08:33
0 0 100 0 0│ 0 66K│ 480B 2960B│0.04 0.09 0.06│Feb-11 12:08:34
0 0 100 0 0│ 0 0 │ 960B 3088B│0.04 0.09 0.06│Feb-11 12:08:35
0 0 100 0 0│ 0 0 │1440B 3440B│0.04 0.09 0.06│Feb-11 12:08:36
0 0 100 0 0│ 0 0 │2016B 4016B│0.04 0.09 0.06│Feb-11 12:08:37
0 0 100 0 0│ 0 0 │5392B 2960B│0.04 0.09 0.06│Feb-11 12:08:38
0 1 99 0 0│ 0 131K│5392B 2960B│0.04 0.09 0.06│Feb-11 12:08:39
0 0 100 0 0│ 0 0 │ 960B 3088B│0.04 0.09 0.06│Feb-11 12:08:40
0 0 100 0 0│ 0 0 │ 15K 7664B│0.04 0.09 0.06│Feb-11 12:08:41
0 0 100 0 0│ 0 0 │1632B 4352B│0.04 0.09 0.06│Feb-11 12:08:42
0 0 100 0 0│ 0 0 │ 960B 2960B│0.04 0.09 0.06│Feb-11 12:08:43
0 1 99 0 0│ 0 98K│ 960B 2960B│0.04 0.09 0.06│Feb-11 12:08:44
0 0 100 0 0│ 0 0 │1448B 3744B│0.04 0.09 0.06│Feb-11 12:08:45
1 0 99 0 0│ 0 0 │ 960B 3440B│0.04 0.09 0.06│Feb-11 12:08:46
0 0 100 0 0│ 0 0 │ 480B 2960B│0.04 0.09 0.06│Feb-11 12:08:47
0 0 99 0 0│ 0 0 │2488B 3680B│0.04 0.09 0.06│Feb-11 12:08:48
1 0 99 0 0│ 0 0 │ 480B 2960B│0.03 0.08 0.06│Feb-11 12:08:49
0 1 99 0 0│ 0 1860K│ 480B 3680B│0.03 0.08 0.06│Feb-11 12:08:50
0 1 99 0 0│ 0 0 │2352B 4608B│0.03 0.08 0.06│Feb-11 12:08:51
0 0 100 0 0│ 0 0 │ 480B 4000B│0.03 0.08 0.06│Feb-11 12:08:52
0 0 100 0 0│ 0 0 │ 480B 2960B│0.03 0.08 0.06│Feb-11 12:08:53
0 1 99 0 0│ 0 0 │1536B 4016B│0.03 0.08 0.06│Feb-11 12:08:54
0 0 100 0 0│ 0 0 │ 960B 2960B│0.03 0.08 0.06│Feb-11 12:08:55^
2.监控cpu和网络接口
- 显示CPU使用情况和每个网络接口
dool --cpu --net --time --full 15
3.监控内存和磁盘
- 显示磁盘情况和内存占用
[root@jeven dool]# dool --disk --mem 5
┄dsk/total┄┬┄┄┄┄┄┄memory┄usage┄┄┄┄┄
read writ│ used free cach avai
371K 1632K│3511M 144M 3570M 4069M
0 20K│3511M 144M 3570M 4069M
0 26K│3511M 144M 3570M 4069M
0 83K│3490M 165M 3570M 4090M
0 0 │3491M 164M 3570M 4089M
0 6554B│3490M 165M 3570M 4090M
0 0 │3493M 162M 3570M 4087M
0 6554B│3507M 148M 3570M 4073M
0 26K│3507M 148M 3570M 4073M
4.监控cpu/负载/swap
- 监控cpu/负载/swap情况
[root@jeven dool]# dool --cpu --load --swap --time 60
┄┄total┄cpu┄usage┄┄┬┄┄┄load┄avg┄┄┄┬┄┄┄┄swap┄┄┄┬┄┄┄┄┄system┄┄┄┄
usr sys idl wai stl│ 1m 5m 15m │ used free│ time
0 0 99 0 0│0.02 0.05 0.05│4612K 2039M│Feb-11 12:15:48