Linux巡检脚本

原创

金陵大掌柜 2023-10-01 09:48:58 博主文章分类：运维 ©著作权

文章标签 linux 服务器运维 sed Ethernet 文章分类 Html/CSS 前端开发

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做运维的朋友都知道，大家经常要对一些系统做月度维护或者自查，在这个过程中，如果只是小工作量的查询，进入系统直接输入命令即可。但是如果说要查询的系统很多，每个系统中要查询的项目也很多，那么每次都要一次一次地输入命令就很麻烦。所以建议大家在获得管理员的许可的前提下，可以使用脚本。

下面是我写的linux中常见的检查项的脚本，大家可以测试使用，如果有其他的检查项，按照上面的格式添加进去就好。

#!/bin/bash

echo "" > /tmp/shell/xunjian.txt
echo "1  cpu mem " >> /tmp/shell/xunjian.txt
echo "" >> /tmp/shell/xunjian.txt
top -bn 1 | head -n 15  >> /tmp/shell/xunjian.txt

echo "" >> /tmp/shell/xunjian.txt
echo "2  df -h " >> /tmp/shell/xunjian.txt
echo "" >> /tmp/shell/xunjian.txt
df -h >> /tmp/shell/xunjian.txt

echo "" >> /tmp/shell/xunjian.txt
echo "3  hostname  " >> /tmp/shell/xunjian.txt
echo "" >> /tmp/shell/xunjian.txt
hostname  >> /tmp/shell/xunjian.txt

echo "" >> /tmp/shell/xunjian.txt
echo "4  ps aux|more  " >> /tmp/shell/xunjian.txt
echo "" >> /tmp/shell/xunjian.txt
ps aux| more |head -n 10  >> /tmp/shell/xunjian.txt

echo "" >> /tmp/shell/xunjian.txt
echo "5  ifconfig  " >> /tmp/shell/xunjian.txt
echo "" >> /tmp/shell/xunjian.txt
ifconfig  >> /tmp/shell/xunjian.txt

echo "" >> /tmp/shell/xunjian.txt
echo "6  vmstat 1  1  " >> /tmp/shell/xunjian.txt
echo "" >> /tmp/shell/xunjian.txt
vmstat 1  1 >> /tmp/shell/xunjian.txt

echo "" >> /tmp/shell/xunjian.txt
echo "7  date  " >> /tmp/shell/xunjian.txt
echo "" >> /tmp/shell/xunjian.txt
date >> /tmp/shell/xunjian.txt

查询结果如下所示：

1 cpu mem

top - 17:58:35 up 10 min, 2 users, load average: 0.03, 0.14, 0.13
Tasks: 274 total,   1 running, 273 sleeping,   0 stopped,   0 zombie
%Cpu(s): 0.0 us, 7.1 sy, 0.0 ni, 92.9 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 1863076 total,    73052 free, 1156900 used,   633124 buff/cache
KiB Swap: 2097148 total, 2094836 free,     2312 used.   538472 avail Mem

   PID USER      PR NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND
     6 root      20   0       0      0      0 S 5.3 0.0   0:03.57 ksoftirqd/0
3217 root      30 10 320188 12700   4860 S 5.3 0.7   0:17.20 urlgrabber+
3316 root      20   0 162020   2180   1516 R 5.3 0.1   0:00.03 top
     1 root      20   0 193804   4940   2184 S 0.0 0.3   0:01.60 systemd
     2 root      20   0       0      0      0 S 0.0 0.0   0:00.00 kthreadd
     4 root       0 -20       0      0      0 S 0.0 0.0   0:00.00 kworker/0:+
     7 root      rt   0       0      0      0 S 0.0 0.0   0:00.00 migration/0
     8 root      20   0       0      0      0 S 0.0 0.0   0:00.00 rcu_bh

2 df -h

Filesystem      Size Used Avail Use% Mounted on
devtmpfs        895M     0 895M   0% /dev
tmpfs           910M     0 910M   0% /dev/shm
tmpfs           910M   11M 900M   2% /run
tmpfs           910M     0 910M   0% /sys/fs/cgroup
/dev/sda3        18G 7.1G   11G 41% /
/dev/sda1       297M 161M 137M 54% /boot
tmpfs           182M 4.0K 182M   1% /run/user/42
tmpfs           182M   28K 182M   1% /run/user/1000
/dev/sr0        4.2G 4.2G     0 100% /run/media/red/RHEL-7.7 Server.x86_64

3 hostname

localhost.localdomain

4 ps aux|more

USER        PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
root          1 0.2 0.2 193804 4940 ?        Ss   17:47   0:01 /usr/lib/systemd/systemd --switched-root --system --deserialize 22
root          2 0.0 0.0      0     0 ?        S    17:47   0:00 [kthreadd]
root          4 0.0 0.0      0     0 ?        S<   17:47   0:00 [kworker/0:0H]
root          6 0.5 0.0      0     0 ?        S    17:47   0:03 [ksoftirqd/0]
root          7 0.0 0.0      0     0 ?        S    17:47   0:00 [migration/0]
root          8 0.0 0.0      0     0 ?        S    17:47   0:00 [rcu_bh]
root          9 0.0 0.0      0     0 ?        R    17:47   0:00 [rcu_sched]
root         10 0.0 0.0      0     0 ?        S<   17:47   0:00 [lru-add-drain]
root         11 0.0 0.0      0     0 ?        S    17:47   0:00 [watchdog/0]

5 ifconfig

ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
        inet 192.168.188.128 netmask 255.255.255.0 broadcast 192.168.188.255
        inet6 fe80::e5ca:68c8:e7fa:5617 prefixlen 64 scopeid 0x20<link>
        ether 00:0c:29:f0:d8:bc txqueuelen 1000 (Ethernet)
        RX packets 204409 bytes 276329842 (263.5 MiB)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 93187 bytes 5603372 (5.3 MiB)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
        inet 127.0.0.1 netmask 255.0.0.0
        inet6 ::1 prefixlen 128 scopeid 0x10<host>
        loop txqueuelen 1000 (Local Loopback)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
        inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
        ether 52:54:00:89:23:f1 txqueuelen 1000 (Ethernet)
        RX packets 0 bytes 0 (0.0 B)
        RX errors 0 dropped 0 overruns 0 frame 0
        TX packets 0 bytes 0 (0.0 B)
        TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

6 vmstat 1 1

procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
0 0 2312 73236 40 633468 0 4 2019 1099 770 1423 3 6 91 0 0

7 date

Sun Sep 3 17:58:35 PDT 2023

8 netstat -nr

Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window irtt Iface
0.0.0.0         192.168.188.2   0.0.0.0         UG        0 0          0 ens33
192.168.122.0   0.0.0.0         255.255.255.0   U         0 0          0 virbr0
192.168.188.0   0.0.0.0         255.255.255.0   U         0 0          0 ens33
[root@localhost shell]#