11个日常实用 Shell 脚本,运维人员先收藏起来~_常用的shell脚本

11个日常实用 Shell 脚本,运维人员先收藏起来~_常用的shell脚本#日志相关 PROGPATHecho $0 | sed -e s,[\\\\/][^\\\\/][^\\\\/]\\*$,, [ -f KaTeX parse error: Ex

#日志相关

PROGPATH=echo $0 | sed -e \’s,[\\\\/][^\\\\/][^\\\\/]\\*$,\’

[ -f KaTeX 解析错误: 预期为\’EOF\’ 但在位置12: PROGPATH 处得到\’\’ ] PROGPATH=\’ …PROGPATH/log\’

[ -e $LOGPATH ] || mkdir

L

G

A

时间

H

S

U

L

时间

F

L

=

\’

日志路径结果文件=\’

LOGPATHRESULTFILE=\’LOGPATH/HostDailyCheck-$IPADDR-日期+%Y%m%d.txt\’

#定义报表的全局变量

report_DateTime=\”\” #日期即可

report_Hostname=\”\” #主机名即可

report_OSRelease=\”\” #Release版本即可

report_Kernel=\”\” #内核正常

report_Language=\”\” #语言/编码没问题

report_LastReboot=\”\” #上次开机时间确定

report_Uptime=\”\” #执行时间(天) OK

report_CPUs=\”\” #CPU数量即可

report_CPUType=\”\” #CPU类型正常

report_Arch=\”\” #CPU架构没问题

report_MemTotal=\”\” #内存总容量(MB) ok

report_MemFree=\”\” #剩余内存(MB) ok

report_MemusedPercent=\”\” #内存使用%没问题

report_DiskTotal=\”\” #硬盘总容量(GB) ok

report_DiskFree=\”\” #硬盘剩余空间(GB) ok

report_DiskusedPercent=\”\” #硬盘使用率%没问题

report_InodeTotal=\”\” #Inode总数就可以了

report_InodeFree=\”\” #Inode 保持正常

report_InodeusedPercent=\”\” #Inode使用情况正常

report_IP=\”\” #IP地址正常

report_MAC=\”\” #MAC地址正常

report_Gateway=\”\” #默认网关即可

report_DNS=\”\” #DNS 正常

report_Listen=\”\” #请听

report_Selinux=\”\” #Selinux 好的

report_Firewall=\”\” #防火墙正常

report_USERs=\”\” #用户没问题

report_USEREmptyPassword=\”\” #空密码用户OK

report_USERTheSameUID=\”\” #相同ID的用户即可

report_PasswordExpiry=\”\” #密码过期日期(天) OK

report_RootUser=\”\” #root用户就可以

report_Sudoers=\”\” #sudo认证成功

report_SSHAuthorized=\”\” #SSH 可信主机OK

report_SSHDProtocolVersion=\”\” #SSH协议版本确定

report_SSHDPermitRootLogin=\”\” #允许root远程登录。好的

report_DefunctProcess=\”\” #僵尸进程数量就可以了

report_SelfInitiatedService=\”\” #自启动服务数量即可

report_SelfInitiatedProgram=\”\” #自启动程序数量即可

report_RuningService=\”\” #正在运行的服务数量没问题

report_Crontab=\”\” #计划任务数量就可以了

report_Syslog=\”\” #日志服务正常

report_SNMP=\”\” #SNMP 正常

report_NTP=\”\” #NTP 正常

report_JDK=\”\” #JDK版本没问题

函数版本(){

回声“”

回声“”

echo \”系统验证脚本:版本$VERSION\”

}

函数getCpuStatus(){

回声“”

回声“”

echo \”########################### CPU 检查#################

物理CPU 数量=

G

r

e

p

\’

p

H

y

s

C

d

\’

/

p

r

C

/

C

p

n

F

s

r

t

n

q

w

C

V

r

t

_

C

U

s

=

(grep \’物理ID\’ /proc/cpuinfo| sort | uniq | wc -l) Virt\\_CPUs=

(grep \’physicalid\’ /proc/cpuinfosortuniqwcl)Virt_CPUs=(grep “处理器” /proc/cpuinfo | wc -l)

CPU_Kernels=$(grep “cores” /proc/cpuinfo|uniq| awk -F \’: \’ \'{print KaTeX 解析错误: 预期为\’EOF\’ 但在位置2: 2}\’ CPU\\_Type=(grep “型号名称” /proc/cpuinfo | awk -F \’: \'{print KaTeX 解析错误: 2: 2} 在位置处得到\’}\’。

echo \”物理CPU数量:\”

H

y

s

C

_

C

U

s

\’

e

C

H

\’

逻辑

C

U

数字

:

Physical\\_CPUs\’ echo \’逻辑CPU数量:

Physical_CPUs\’echo\’逻辑CPU数量:Virt_CPUs\”

echo \”每个CPU :个核心

C

U

_

K

e

r

n

e

s

\’

e

C

H

\’

C

U

模型

:

CPU\\_Kernels\’echo\’CPU型号:

CPU_Kernels\’echo\’CPU型号:CPU_Type”

echo \’CPU架构:KaTeX解析错误: Expected \’EOF\’, got \’#\’ atposition 12: CPU\\_Arch\’ #报告信息report\\_CP…Virt_CPUs #CPU编号

report_CPUType=KaTeX 解析错误: 需要\’EOF\’,在位置11: CPU\\_Type #CPU 类型Report\\_A…CPU_Arch #CPU 架构

}

函数getMemStatus(){

回声“”

回声“”

echo \”##########################内存检查################## # # ########”

if [[ KaTeX 解析错误: 预期\’EOF\’,在位置52: 处得到\’#\’ …lse free -h fi #报告信息MemTotal=(grep MemTotal /proc/meminfo| awk \'{print KaTeX 解析错误: \’EOF\’ 预期,在位置2: 2}\’) #KB MemFree=(grep MemFree /proc/meminfo| awk \'{print KaTeX parse error: \’EOF\’预期但在位置2: 2}\’) #KB 让MemU.(awk \”BEGIN {if(KaTeX 解析错误: 预期组作为输入结尾处\’\\\’ 的参数: rintf \\\’%.2f\\\’,Memused*100/KaTeX 分析错误: 预期\’EOF\’, Got \’}\’ at location 9: MemTotal}}\’) report\\_Mem…((MemTotal/1024))\”\”MB\” #内存总容量(MB)

report_MemFree=\”KaTeX 解析错误: 预期为\’EOF\’,在位置23:ee/1024))\’MB\’ #剩余内存(MB) 报告.(awk \”BEGIN {if( KaTeX 解析错误: \’\\\’\’ 在组输入末尾: 期望作为参数.rintf \\\’%.2f\\\’,Memused*100/$MemTotal}}\”)\”\”%\” #内存使用%

}

函数getDiskStatus(){

回声“”

回声“”

echo \”########################## 磁盘检查################## # # ########”

df -hiP \’s/已安装/已安装/\’ /tmp/inode

df -hTP | 在sed 中安装在/tmp/disk 上

join /tmp/disk /tmp/inode | awk \'{print $1,$2,\”|\”,$3,$4,$5,$6,\”|\”,$8,$9,$10,$11,\”|\”,KaTeX 解析错误:预期为\’EOF\’,在位置3: 12}\’| 列-t #report.(df -TP | sed \’1d\’ | awk \’KaTeX 解析错误: \’EOF\’ 预期为\’# \’21: mpfs\'{print}\’) #KB disktotal=(echo “$diskdata” | awk \'{total+=KaTeX 解析错误: 预期\’EOF\’,获得位置在2: 处获得\’}\’ 3}END{打印总计.(echo “ $diskdata” ” | awk \'{total+=KaTeX 解析错误: 预期为\’EOF\’ 但\’} 在位置2: \’ 得到4}END{打印总计.((disktotal-diskused)) #KB

Discusedpercent=$(echo $disktotal $diskused | awk \'{if($10){printf 100}else{printf \”%.2f\”,$2*100/KaTeX 解析错误: 预期\’EOF\’ 在位置2: 我得到\’}\’与1 }}\’) inodedata=(df -iTP | sed \’1d\’ | awk \’

2

=

\’

t

仪表

p

F

s

\’

p

r

n

t

\’

n

d

e

t

t

=

2!=\’tmpfs\'{print}\’) inodetotal=

2!=\’tmpfs\’print\’)inodetotal=(echo “$inodedata” | awk \'{total+=KaTeX 解析错误: 预期为\’EOF\’,在位置2: 处得到\’}\’ 3}END{打印总计.(echo \”$inodedata\” ” | awk \'{total+=KaTeX 解析错误: 应为\’EOF\’,但在位置2: 处得到\’}\’ 4}END{正在打印总计. ((inodetotal-inodeused))

inodeusedpercent=$(echo $inodetotal $inodeused | awk \'{if($10){printf 100}else{printf \”%.2f\”,$2*100/KaTeX 解析错误: \’EOF\’ 预计在位置2: 我得到\’}\’在1 }}\’) 报告\\_Dis…((disktotal/

1024/1024))“GB” #硬盘总容量(GB)
report_DiskFree=KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 28: …024/1024))\”GB\” #̲硬盘剩余(GB) report…diskusedpercent\”“%” #硬盘使用率%
report_InodeTotal=KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 24: …otal/1000))\”K\” #̲Inode总量 report\\…((inodefree/1000))“K” #Inode剩余
report_InodeUsedPercent=“$inodeusedpercent”“%” #Inode使用率%

}

function getSystemStatus(){
echo “”
echo “”
echo “############################ 系统检查 ############################”
if [ -e /etc/sysconfig/i18n ];then
default_LANG=“$(grep “LANG=” /etc/sysconfig/i18n | grep -v “^#” | awk -F \’”’ \'{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 2}̲\’)\” else defaul…LANG
fi
export LANG=“en_US.UTF-8”
Release=

(

c

a

t

/

e

t

c

/

r

e

d

h

a

t

r

e

l

e

a

s

e

2

>

/

d

e

v

/

n

u

l

l

)

K

e

r

n

e

l

=

(cat /etc/redhat-release 2>/dev/null) Kernel=

(cat/etc/redhat−release2>/dev/null)Kernel=(uname -r)
OS=

(

u

n

a

m

e

o

)

H

o

s

t

n

a

m

e

=

(uname -o) Hostname=

(uname−o)Hostname=(uname -n)
SELinux=$(/usr/sbin/sestatus | grep “SELinux status: \” | awk \'{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 3}̲\’) LastReboot=(who -b | awk \'{print $3,KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 4}̲\’) uptime=(uptime | sed ‘s/.*up ([^,]*), .*/\\1/’)
echo \” 系统:

O

S

\”

e

c

h

o

\”

发行版本:

OS\” echo \” 发行版本:

OS\”echo\”发行版本:Release”
echo \” 内核:

K

e

r

n

e

l

\”

e

c

h

o

\”

主机名:

Kernel\” echo \” 主机名:

Kernel\”echo\”主机名:Hostname\”
echo \” SELinux:

S

E

L

i

n

u

x

\”

e

c

h

o

\”

语言

/

编码:

SELinux\” echo \”语言/编码:

SELinux\”echo\”语言/编码:default_LANG\”
echo \” 当前时间:

(

d

a

t

e

+

e

c

h

o

\”

最后启动:

(date +\’%F %T\’)\” echo \” 最后启动:

(date+′echo\”最后启动:LastReboot\”
echo \” 运行时间:KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 9: uptime\” #̲报表信息 report\\_Da…(date +“%F %T”) #日期
report_Hostname=“KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 11: Hostname\” #̲主机名 report\\_OSR…Release” #发行版本
report_Kernel=“KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 9: Kernel\” #̲内核 report\\_Lang…default_LANG” #语言/编码
report_LastReboot=“KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 13: LastReboot\” #̲最近启动时间 report\\_…uptime” #运行时间(天)
report_Selinux=“

S

E

L

i

n

u

x

\”

e

x

p

o

r

t

L

A

N

G

=

\”

SELinux\” export LANG=\”

SELinux\”exportLANG=\”default_LANG”

}

function getServiceStatus(){
echo “”
echo “”
echo “############################ 服务检查 ############################”
echo “”
if [[

c

e

n

t

o

s

V

e

r

s

i

o

n

>

7

]

]

;

t

h

e

n

c

o

n

f

=

centosVersion > 7 ]];then conf=

centosVersion>7]];thenconf=(systemctl list-unit-files –type=service –state=enabled –no-pager | grep “enabled”)
process=KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 84: …ep \”.service\”) #̲报表信息 report\\_Se…(echo \”KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 17: …onf\” | wc -l)\” #̲自启动服务数量 report\\…(echo \”KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 20: …ess\” | wc -l)\” #̲运行中服务数量 else co…(/sbin/chkconfig | grep -E “:on|:启用”)
process=KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 70: …running|正在运行\”) #̲报表信息 report\\_Se…(echo \”KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 17: …onf\” | wc -l)\” #̲自启动服务数量 report\\…(echo “KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 20: …ess\” | wc -l)\” #̲运行中服务数量 fi echo…conf” | column -t
echo “”
echo “正在运行的服务”
echo “————–”
echo “$process”

}

function getAutoStartStatus(){
echo “”
echo “”
echo “############################ 自启动检查 ##########################”
conf=KaTeX parse error: Expected group after \’^\’ at position 11: (grep -v \”^̲#\” /etc/rc.d/rc…/d’)
echo “KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 7: conf\” #̲报表信息 report\\_Se…(echo $conf | wc -l)” #自启动程序数量
}

function getLoginStatus(){
echo “”
echo “”
echo “############################ 登录检查 ############################”
last | head
}

function getNetworkStatus(){
echo “”
echo “”
echo “############################ 网络检查 ############################”
if [[ $centosVersion < 7 ]];then
/sbin/ifconfig -a | grep -v packets | grep -v collisions | grep -v inet6
else
#ip a
for i in $(ip link | grep BROADCAST | awk -F: ‘{print $2}’);do ip add show $i | grep -E “BROADCAST|global”| awk \'{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 2}̲\’ | tr \’\\n\’ \’ \’…(ip route | grep default | awk \'{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 3}̲\’) DNS=(grep nameserver /etc/resolv.conf| grep -v “#” | awk ‘{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 2}̲\’ | tr \’\\n\’ \’,\’…//’)
echo “”
echo “网关:

G

A

T

E

W

A

Y

\”

e

c

h

o

\”

D

N

S

GATEWAY \” echo \” DNS:

GATEWAY\”echo\”DNS:DNS”
#报表信息
IP=$(ip -f inet addr | grep -v 127.0.0.1 | grep inet | awk ‘{print $NF,KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 2}̲\’ | tr \’\\n\’ \’,\’…//’)
MAC=$(ip link | grep -v “LOOPBACK|loopback” | awk ‘{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 2}̲\’ | sed \’N;s/\\n…//’)
report_IP=\”KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 5: IP\” #̲IP地址 report\\_MA…MAC #MAC地址
report_Gateway=“KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 10: GATEWAY\” #̲默认网关 report\\_DN…DNS” #DNS
}

function getListenStatus(){
echo “”
echo “”
echo “############################ 监听检查 ############################”
TCPListen=

(

s

s

n

t

u

l

c

o

l

u

m

n

t

)

e

c

h

o

\”

(ss -ntul | column -t) echo \”

(ss−ntul∣column−t)echo\”TCPListen\”
#报表信息
report_Listen=“

(

e

c

h

o

\”

(echo \”

(echo\”TCPListen”| sed ‘1d’ | awk ‘/tcp/ {print $5}’ | awk -F: ‘{print $NF}’ | sort | uniq | wc -l)\”
}

function getCronStatus(){
echo “”
echo “”
echo “############################ 计划任务检查 ########################”
Crontab=0
for shell in $(grep -v “/sbin/nologin” /etc/shells);do
for user in

(

g

r

e

p

\”

(grep \”

(grep\”shell\” /etc/passwd| awk -F: ‘{print $1}’);do
crontab -l -u KaTeX parse error: Expected \’EOF\’, got \’&\’ at position 19: …r >/dev/null 2>&̲1 status=?
if [

s

t

a

t

u

s

e

q

0

]

;

t

h

e

n

e

c

h

o

\”

status -eq 0 ];then echo \”

status−eq0];thenecho\”user\”
echo “——–”
crontab -l -u

u

s

e

r

l

e

t

C

r

o

n

t

a

b

=

C

r

o

n

t

a

b

+

user let Crontab=Crontab+

userletCrontab=Crontab+(crontab -l -u KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 36: …\” fi done done #̲计划任务 find /etc/…(find /etc/cron* -type f | wc -l)
#报表信息
report_Crontab=“$Crontab” #计划任务数
}
function getHowLongAgo(){

计算一个时间戳离现在有多久了

datetime=“KaTeX parse error: Undefined control sequence: \\* at position 1: \\̲*̲\” [ -z \”datetime” ] && echo \”错误的参数:getHowLongAgo() KaTeX parse error: Undefined control sequence: \\* at position 1: \\̲*̲\” Timestamp=(date +%s -d “KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 12: datetime\”) #̲转化为时间戳 Now\\_Tim…(date +%s)
Difference_Timestamp=

(

(

((

((Now_Timestamp-

T

i

m

e

s

t

a

m

p

)

)

d

a

y

s

=

0

;

h

o

u

r

s

=

0

;

m

i

n

u

t

e

s

=

0

;

s

e

c

_

i

n

_

d

a

y

=

Timestamp)) days=0;hours=0;minutes=0; sec\\_in\\_day=

Timestamp))days=0;hours=0;minutes=0;sec_in_day=((60*60*24));
sec_in_hour=$((60*60));
sec_in_minute=60
while ((

(

(

((

((Difference_Timestamp-$sec_in_day)) > 1 ))
do
let Difference_Timestamp=Difference_Timestamp-sec_in_day
let days++
done
while ((

(

(

((

((Difference_Timestamp-

s

e

c

_

i

n

_

h

o

u

r

)

)

>

1

)

)

d

o

l

e

t

D

i

f

f

e

r

e

n

c

e

_

T

i

m

e

s

t

a

m

p

=

D

i

f

f

e

r

e

n

c

e

T

i

m

e

s

t

a

m

p

s

e

c

i

n

h

o

u

r

l

e

t

h

o

u

r

s

+

+

d

o

n

e

e

c

h

o

\”

sec\\_in\\_hour)) > 1 )) do let Difference\\_Timestamp=Difference_Timestamp-sec_in_hour let hours++ done echo \”

sec_in_hour))>1))doletDifference_Timestamp=DifferenceT​imestamp−seci​nh​ourlethours++doneecho\”days 天 $hours 小时前”
}

function getUserLastLogin(){

获取用户最近一次登录的时间,含年份

很遗憾last命令不支持显示年份,只有\”last -t YYYYMMDDHHMMSS\”表示某个时间之间的登录,我

们只能用最笨的方法了,对比今天之前和今年元旦之前(或者去年之前和前年之前……)某个用户

登录次数,如果登录统计次数有变化,则说明最近一次登录是今年。

username=$1

u

s

e

r

n

a

m

e

:

=

\”

w

h

o

a

m

i

\”

t

h

i

s

Y

e

a

r

=

{username:=\”`whoami`\”} thisYear=

username:=\”‘whoami‘\”thisYear=(date +%Y)

oldesYear=$(last | tail -n1 | awk ‘{print $NF}’)

while(( $thisYear >=

o

l

d

e

s

Y

e

a

r

)

)

;

d

o

l

o

g

i

n

B

e

f

o

r

e

T

o

d

a

y

=

oldesYear));do loginBeforeToday=

oldesYear));dologinBeforeToday=(last $username | grep

u

s

e

r

n

a

m

e

w

c

l

)

l

o

g

i

n

B

e

f

o

r

e

N

e

w

Y

e

a

r

s

D

a

y

O

f

T

h

i

s

Y

e

a

r

=

username | wc -l) loginBeforeNewYearsDayOfThisYear=

username∣wc−l)loginBeforeNewYearsDayOfThisYear=(last $username -t $thisYear\”0101000000\” | grep $username | wc -l)

if [ $loginBeforeToday -eq 0 ];then

echo “从未登录过”

break

elif [ $loginBeforeToday -gt

l

o

g

i

n

B

e

f

o

r

e

N

e

w

Y

e

a

r

s

D

a

y

O

f

T

h

i

s

Y

e

a

r

]

;

t

h

e

n

l

a

s

t

D

a

t

e

T

i

m

e

=

loginBeforeNewYearsDayOfThisYear ];then lastDateTime=

loginBeforeNewYearsDayOfThisYear];thenlastDateTime=(last -i
KaTeX parse error: Expected \’}\’, got \’EOF\’ at end of input: …++)printf\”%s \”,i}\’)\”
KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 11: thisYear\” #̲格式如: Sat Nov 2 …(date “+%Y-%m-%d %H:%M:%S” -d “

l

a

s

t

D

a

t

e

T

i

m

e

\”

)

e

c

h

o

\”

lastDateTime\”) echo \”

lastDateTime\”)echo\”lastDateTime”

break

else

thisYear=$((thisYear-1))

fi

done

}

function getUserStatus(){
echo “”
echo “”
echo “############################ 用户检查 ############################”
#/etc/passwd 最后修改时间
pwdfile=\”

(

c

a

t

/

e

t

c

/

p

a

s

s

w

d

)

\”

M

o

d

i

f

y

=

(cat /etc/passwd)\” Modify=

(cat/etc/passwd)\”Modify=(stat /etc/passwd | grep Modify | tr ‘.’ ’ ’ | awk ‘{print $2,$3}’)

echo “/etc/passwd 最后修改时间:

M

o

d

i

f

y

(

Modify (

Modify((getHowLongAgo $Modify))”
echo “”
echo “特权用户”
echo “——–”
RootUser=“”
for user in

(

e

c

h

o

\”

(echo \”

(echo\”pwdfile\” | awk -F: ‘{print $1}’);do
if [ $(id -u

u

s

e

r

)

e

q

0

]

;

t

h

e

n

e

c

h

o

\”

user) -eq 0 ];then echo \”

user)−eq0];thenecho\”user\”
RootUser=“

R

o

o

t

U

s

e

r

,

RootUser,

RootUser,user”
fi
done
echo “”
echo “用户列表”
echo “——–”
USERs=0
echo “$(
echo “用户名 UID GID HOME SHELL 最后一次登录”
for shell in $(grep -v “/sbin/nologin” /etc/shells);do
for username in

(

g

r

e

p

\”

(grep \”

(grep\”shell” /etc/passwd| awk -F: ‘{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 1}̲\’);do userLastL…(getUserLastLogin

u

s

e

r

n

a

m

e

)

\”

e

c

h

o

\”

username)\” echo \”

username)\”echo\”pwdfile\” | grep -w “

u

s

e

r

n

a

m

e

\”

g

r

e

p

w

\”

username\” |grep -w \”

username\”∣grep−w\”shell”| awk -F: -v lastlogin=“

(

e

c

h

o

\”

(echo \”

(echo\”userLastLogin” | tr ’ ’ ‘_’)\” ‘{print $1,$3,$4,$6,KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 12: 7,lastlogin}̲\’ done let USER…(echo “

p

w

d

f

i

l

e

\”

g

r

e

p

\”

pwdfile\” | grep \”

pwdfile\”∣grep\”shell”| wc -l)
done
)\” | column -t
echo “”
echo “空密码用户”
echo “———-”
USEREmptyPassword=“”
for shell in $(grep -v “/sbin/nologin” /etc/shells);do
for user in

(

e

c

h

o

\”

(echo \”

(echo\”pwdfile\” | grep “

s

h

e

l

l

\”

c

u

t

d

:

f

1

)

;

d

o

r

=

shell\” | cut -d: -f1);do r=

shell\”∣cut−d:−f1);dor=(awk -F: \’$2==”!!\”{print $1}’ /etc/shadow | grep -w $user)
if [ ! -z $r ];then
echo

r

U

S

E

R

E

m

p

t

y

P

a

s

s

w

o

r

d

=

\”

r USEREmptyPassword=\”

rUSEREmptyPassword=\”USEREmptyPassword,“

r

f

i

d

o

n

e

d

o

n

e

e

c

h

o

\”

\”

e

c

h

o

\”

相同

I

D

的用户

\”

e

c

h

o

\”

\”

U

S

E

R

T

h

e

S

a

m

e

U

I

D

=

\”

\”

U

I

D

s

=

r fi done done echo \”\” echo \”相同ID的用户\” echo \”————\” USERTheSameUID=\”\” UIDs=

rfidonedoneecho\”\”echo\”相同ID的用户\”echo\”−−−−−−−−−−−−\”USERTheSameUID=\”\”UIDs=(cut -d: -f3 /etc/passwd | sort | uniq -c | awk ‘$1>1{print $2}’)
for uid in

U

I

D

s

;

d

o

e

c

h

o

n

\”

UIDs;do echo -n \”

UIDs;doecho−n\”uid”;
USERTheSameUID=“

u

i

d

\”

r

=

uid\” r=

uid\”r=(awk -F: \’ORS=”“;

3

=

=

\”

3==\’\”

3==′\”uid”’{print “:”,KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 1}̲\’ /etc/passwd) …r\”
echo “”
USERTheSameUID=“$USERTheSameUID KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 10: r,\” done #̲报表信息 report\\_US…USERs” #用户
report_USEREmptyPassword=$(echo

U

S

E

R

E

m

p

t

y

P

a

s

s

w

o

r

d

s

e

d

s

/

,

/

/

)

r

e

p

o

r

t

_

U

S

E

R

T

h

e

S

a

m

e

U

I

D

=

USEREmptyPassword | sed \’s/^,//\’) report\\_USERTheSameUID=

USEREmptyPassword∣sed′s/,//′)report_USERTheSameUID=(echo

U

S

E

R

T

h

e

S

a

m

e

U

I

D

s

e

d

s

/

,

USERTheSameUID | sed \’s/,

USERTheSameUID∣sed′s/,//\’)
report_RootUser=$(echo $RootUser | sed ‘s/^,//’) #特权用户
}

function getPasswordStatus {
echo “”
echo “”
echo “############################ 密码检查 ############################”
pwdfile=“$(cat /etc/passwd)”
echo “”
echo “密码过期检查”
echo “————”
result=“”
for shell in $(grep -v “/sbin/nologin” /etc/shells);do
for user in

(

e

c

h

o

\”

(echo \”

(echo\”pwdfile\” | grep \”

s

h

e

l

l

\”

c

u

t

d

:

f

1

)

;

d

o

g

e

t

_

e

x

p

i

r

y

_

d

a

t

e

=

shell\” | cut -d: -f1);do get\\_expiry\\_date=

shell\”∣cut−d:−f1);doget_expiry_date=(/usr/bin/chage -l $user | grep ‘Password expires’ | cut -d: -f2)
if [[ $get_expiry_date = ’ never’ || $get_expiry_date = ‘never’ ]];then
printf “%-15s 永不过期\\n”

u

s

e

r

r

e

s

u

l

t

=

\”

user result=\”

userresult=\”result,

u

s

e

r

:

n

e

v

e

r

\”

e

l

s

e

p

a

s

s

w

o

r

d

_

e

x

p

i

r

y

_

d

a

t

e

=

user:never\” else password\\_expiry\\_date=

user:never\”elsepassword_expiry_date=(date -d “

g

e

t

_

e

x

p

i

r

y

_

d

a

t

e

\”

\”

+

c

u

r

r

e

n

t

_

d

a

t

e

=

get\\_expiry\\_date\” \”+%s\”) current\\_date=

get_expiry_date\”\”+current_date=(date “+%s”)
diff=

(

(

((

((password_expiry_date-

c

u

r

r

e

n

t

_

d

a

t

e

)

)

l

e

t

D

A

Y

S

=

current\\_date)) let DAYS=

current_date))letDAYS=(($diff/(60*60*24)))
printf “%-15s %s天后过期\\n” $user

D

A

Y

S

r

e

s

u

l

t

=

\”

DAYS result=\”

DAYSresult=\”result,

u

s

e

r

:

user:

user:DAYS days”
fi
done
done
report_PasswordExpiry=$(echo $result | sed ‘s/^,//’)

echo “”
echo “密码策略检查”
echo “————”
grep -v “#” /etc/login.defs | grep -E “PASS_MAX_DAYS|PASS_MIN_DAYS|PASS_MIN_LEN|PASS_WARN_AGE”

}

function getSudoersStatus(){
echo “”
echo “”
echo “############################ Sudoers检查 #########################”
conf=KaTeX parse error: Expected group after \’^\’ at position 11: (grep -v \”^̲#\” /etc/sudoers…/d’)
echo “KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 15: conf\” echo \”\” #̲报表信息 report\\_Su…(echo $conf | wc -l)”
}

function getInstalledStatus(){
echo “”
echo “”
echo “############################ 软件检查 ############################”
rpm -qa –last | head | column -t
}

function getProcessStatus(){
echo “”
echo “”
echo “############################ 进程检查 ############################”
if [ $(ps -ef | grep defunct | grep -v grep | wc -l) -ge 1 ];then
echo “”
echo “僵尸进程”;
echo “——–”
ps -ef | head -n1
ps -ef | grep defunct | grep -v grep
fi
echo “”
echo “内存占用TOP10”
echo “————-”
echo -e “PID %MEM RSS COMMAND
$(ps aux | awk \'{print $2, $4, $6, KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 3: 11}̲\’ | sort -k3rn …(ps -ef | grep defunct | grep -v grep|wc -l)”
}

function getJDKStatus(){
echo “”
echo “”
echo “############################ JDK检查 #############################”
java -version 2>/dev/null
if [ KaTeX parse error: Expected \’EOF\’, got \’&\’ at position 32: …ava -version 2>&̲1 fi echo \”JAVA…JAVA_HOME\”\”
#报表信息
report_JDK=“$(java -version 2>&1 | grep version | awk \'{print $1,KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 3}̲\’ | tr -d \’\”\’)\”…(getState rsyslog)”
echo “”
echo “/etc/rsyslog.conf”
echo “—————–”
cat /etc/rsyslog.conf 2>/dev/null | grep -v “^#” | grep -v “^\\KaTeX parse error: Expected group after \’^\’ at position 11: \” | sed \’/^̲/d’ | column -t
#报表信息
report_Syslog=”$(getState rsyslog)\”
}
function getFirewallStatus(){
echo “”
echo “”
echo “############################ 防火墙检查 ##########################”
#防火墙状态,策略等
if [[ KaTeX parse error: Expected \’EOF\’, got \’&\’ at position 68: …s >/dev/null 2>&̲1 status=?
if [ $status -eq 0 ];then
s=“active”
elif [ $status -eq 3 ];then
s=“inactive”
elif [

s

t

a

t

u

s

e

q

4

]

;

t

h

e

n

s

=

\”

p

e

r

m

i

s

s

i

o

n

d

e

n

i

e

d

\”

e

l

s

e

s

=

\”

u

n

k

n

o

w

n

\”

f

i

e

l

s

e

s

=

\”

status -eq 4 ];then s=\”permission denied\” else s=\”unknown\” fi else s=\”

status−eq4];thens=\”permissiondenied\”elses=\”unknown\”fielses=\”(getState iptables)\”
fi
echo “iptables: KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 114: …es 2>/dev/null #̲报表信息 report\\_Fi…s”
}

function getSNMPStatus(){
#SNMP服务状态,配置等
echo “”
echo “”
echo “############################ SNMP检查 ############################”
status=“

(

g

e

t

S

t

a

t

e

s

n

m

p

d

)

\”

e

c

h

o

\”

服务状态:

(getState snmpd)\” echo \”服务状态:

(getStatesnmpd)\”echo\”服务状态:status”
echo “”
if [ -e /etc/snmp/snmpd.conf ];then
echo “/etc/snmp/snmpd.conf”
echo “——————–”
cat /etc/snmp/snmpd.conf 2>/dev/null | grep -v “^#” | sed \’/^KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 8: /d\’ fi #̲报表信息 report\\_SN…(getState snmpd)\”
}

function getState(){
if [[ $centosVersion < 7 ]];then
if [ -e “/etc/init.d/$1” ];then
if [ /etc/init.d/$1 status 2>/dev/null | grep -E \”is running|正在运行\” | wc -l -ge 1 ];then
r=“active”
else
r=“inactive”
fi
else
r=“unknown”
fi
else
#CentOS 7+
r=“$(systemctl is-active KaTeX parse error: Expected \’EOF\’, got \’&\’ at position 5: 1 2>&̲1)\” fi echo \”r”
}

function getSSHStatus(){
#SSHD服务状态,配置,受信任主机等
echo “”
echo “”
echo “############################ SSH检查 #############################”
#检查受信任主机
pwdfile=“

(

c

a

t

/

e

t

c

/

p

a

s

s

w

d

)

\”

e

c

h

o

\”

服务状态:

(cat /etc/passwd)\” echo \”服务状态:

(cat/etc/passwd)\”echo\”服务状态:(getState sshd)”
Protocol_Version=$(cat /etc/ssh/sshd_config | grep Protocol | awk \'{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 2}̲\’) echo \”SSH协议版…Protocol_Version\”
echo “”
echo “信任主机”
echo “——–”
authorized=0
for user in

(

e

c

h

o

\”

(echo \”

(echo\”pwdfile\” | grep /bin/bash | awk -F: \'{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 1}̲\’);do authorize…(echo “$pwdfile” | grep -w $user | awk -F: \'{printf KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 26: …thorized\\_keys\”}̲\’) authorized\\_…(cat $authorize_file 2>/dev/null | awk ‘{print KaTeX parse error: Expected \’EOF\’, got \’}\’ at position 2: 3}̲\’ | tr \’\\n\’ \’,\’…//’)
if [ ! -z

a

u

t

h

o

r

i

z

e

d

_

h

o

s

t

]

;

t

h

e

n

e

c

h

o

\”

authorized\\_host ];then echo \”

authorized_host];thenecho\”user 授权 \”KaTeX parse error: Expected group as argument to \’\\\”\’ at position 19: …horized\\_host\\\” ̲无密码访问\” fi let a…(cat $authorize_file 2>/dev/null | awk ‘{print $3}’|wc -l)
done

echo “”
echo “是否允许ROOT远程登录”
echo “——————–”
config=

(

c

a

t

/

e

t

c

/

s

s

h

/

s

s

h

d

_

c

o

n

f

i

g

g

r

e

p

P

e

r

m

i

t

R

o

o

t

L

o

g

i

n

)

f

i

r

s

t

C

h

a

r

=

(cat /etc/ssh/sshd\\_config | grep PermitRootLogin) firstChar=

(cat/etc/ssh/sshd_config∣grepPermitRootLogin)firstChar={config:0:1}
if [ KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 15: firstChar == \”#̲\” ];then Permit…(echo $config | awk ‘{print $2}’)
fi
echo “PermitRootLogin $PermitRootLogin”

echo “”
echo “/etc/ssh/sshd_config”
echo “——————–”
cat /etc/ssh/sshd_config | grep -v “^#” | sed ‘/^$/d’

#报表信息
report_SSHAuthorized=“KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 13: authorized\” #̲SSH信任主机 report\\…Protocol_Version” #SSH协议版本
report_SSHDPermitRootLogin=“KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 18: …rmitRootLogin\” #̲允许root远程登录 } fu…(getState ntpd)”
echo “”
echo “/etc/ntp.conf”
echo “————-”
cat /etc/ntp.conf 2>/dev/null | grep -v “^#” | sed \’/^KaTeX parse error: Expected \’EOF\’, got \’#\’ at position 8: /d\’ fi #̲报表信息 report\\_NT…(getState ntpd)\”
}

function uploadHostDailyCheckReport(){
json=\”{
“DateTime”:“KaTeX parse error: Expected group as argument to \’\\\”\’ at end of input: …\\\”Hostname\\\”:\\\”report_Hostname”,
“OSRelease”:“KaTeX parse error: Expected group as argument to \’\\\”\’ at end of input: …, \\\”Kernel\\\”:\\\”report_Kernel”,
“Language”:“KaTeX parse error: Expected group as argument to \’\\\”\’ at end of input: …LastReboot\\\”:\\\”report_LastReboot”,
“Uptime”:“KaTeX parse error: Expected group as argument to \’\\\”\’ at end of input: …\\\”, \\\”CPUs\\\”:\\\”report_CPUs”,
“CPUType”:“KaTeX parse error: Expected group as argument to \’\\\”\’ at end of input: …\\\”, \\\”Arch\\\”:\\\”report_Arch”,
“MemTotal”:“KaTeX parse error: Expected group as argument to \’\\\”\’ at end of input: … \\\”MemFree\\\”:\\\”report_MemFree”,

为了做好运维面试路上的助攻手,特整理了上百道 【运维技术栈面试题集锦】 ,让你面试不慌心不跳,高薪offer怀里抱!

这次整理的面试题,小到shell、MySQL,大到K8s等云原生技术栈,不仅适合运维新人入行面试需要,还适用于想提升进阶跳槽加薪的运维朋友。

本份面试集锦涵盖了

174 道运维工程师面试题128道k8s面试题108道shell脚本面试题200道Linux面试题51道docker面试题35道Jenkis面试题78道MongoDB面试题17道ansible面试题60道dubbo面试题53道kafka面试18道mysql面试题40道nginx面试题77道redis面试题28道zookeeper
总计 1000+ 道面试题, 内容 又全含金量又高

174道运维工程师面试题

1、什么是运维?

2、在工作中,运维人员经常需要跟运营人员打交道,请问运营人员是做什么工作的?

3、现在给你三百台服务器,你怎么对他们进行管理?

4、简述raid0 raid1raid5二种工作模式的工作原理及特点

5、LVS、Nginx、HAproxy有什么区别?工作中你怎么选择?

6、Squid、Varinsh和Nginx有什么区别,工作中你怎么选择?

7、Tomcat和Resin有什么区别,工作中你怎么选择?

8、什么是中间件?什么是jdk?

9、讲述一下Tomcat8005、8009、8080三个端口的含义?

10、什么叫CDN?

11、什么叫网站灰度发布?

12、简述DNS进行域名解析的过程?

13、RabbitMQ是什么东西?

14、讲一下Keepalived的工作原理?

15、讲述一下LVS三种模式的工作过程?

16、mysql的innodb如何定位锁问题,mysql如何减少主从复制延迟?

17道ansible面试题**

60道dubbo面试题53道kafka面试18道mysql面试题40道nginx面试题77道redis面试题28道zookeeper
总计 1000+ 道面试题, 内容 又全含金量又高

174道运维工程师面试题

1、什么是运维?

2、在工作中,运维人员经常需要跟运营人员打交道,请问运营人员是做什么工作的?

3、现在给你三百台服务器,你怎么对他们进行管理?

4、简述raid0 raid1raid5二种工作模式的工作原理及特点

5、LVS、Nginx、HAproxy有什么区别?工作中你怎么选择?

6、Squid、Varinsh和Nginx有什么区别,工作中你怎么选择?

7、Tomcat和Resin有什么区别,工作中你怎么选择?

8、什么是中间件?什么是jdk?

9、讲述一下Tomcat8005、8009、8080三个端口的含义?

10、什么叫CDN?

11、什么叫网站灰度发布?

12、简述DNS进行域名解析的过程?

13、RabbitMQ是什么东西?

14、讲一下Keepalived的工作原理?

15、讲述一下LVS三种模式的工作过程?

16、mysql的innodb如何定位锁问题,mysql如何减少主从复制延迟?

17、如何重置mysql root密码?

#以上关于11个日常实用 Shell 脚本,运维人员先收藏起来~_常用的shell脚本的相关内容来源网络仅供参考,相关信息请以官方公告为准!

原创文章,作者:CSDN,如若转载,请注明出处:https://www.sudun.com/ask/92971.html

(0)
CSDN's avatarCSDN
上一篇 2024年7月4日 下午6:29
下一篇 2024年7月4日 下午6:29

相关推荐

发表回复

您的邮箱地址不会被公开。 必填项已用 * 标注