Linux System Brush Station group IP script

The station group server has many IP addresses, and if configured manually, it takes a lot of time. Using shell scripts to automate configuration can effectively improve productivity. As follows:

1. First configure the server first IP, and then SSH login to the server;

2. Create the file Iprange.txt under/root and write the IP segment to Iprange.txt, as follows

   #cat Iprange.txt

   192.168.10.0/28

   192.168.10.16/28

   192.168.20.32/28

   ........

3. Create a script

#vi iprange.sh

#!/bash/bash

Read-p "Please enter Ip_range ' TXT document:" Iprange.txt

Path=/etc/sysconfig/network-scripts

N=0

S=0

For i in '/bin/cat/root/iprange.txt '

Do

id=${i#*/} #截取后缀

add=${i%.*} #截取网段

prefix=${i%/*}

host=${prefix##*.} #截取第4个字段

If [$ID-eq]; then

Start= '/usr/bin/expr $HOST + 2 '

End= '/usr/bin/expr $START + 12 '

m=240

If [$N-eq 0]; Then

S=0

Else

Let s+= '/usr/bin/expr $END-$START + 1 '

Fi

Fi

If [$ID-eq]; then

Start= '/usr/bin/expr $HOST + 2 '

End= '/usr/bin/expr $START + 252 '

M=0

If [$N-eq 0]; Then

S=0

Else

Let s+= '/usr/bin/expr $END-$START + 1 '

Fi

Fi

If [$ID-eq]; then

Start= '/usr/bin/expr $HOST + 2 '

End= '/usr/bin/expr $START + 124 '

m=128

If [$N-eq 0]; Then

S=0

Else

Let s+= '/usr/bin/expr $END-$START + 1 '

Fi

Fi

If [$ID-eq]; then

Start= '/usr/bin/expr $HOST + 2 '

End= '/usr/bin/expr $START + 60 '

m=192

If [$N-eq 0]; Then

S=0

Else

Let s+= '/usr/bin/expr $END-$START + 1 '

Fi

Fi

If [$ID-eq]; then

Start= '/usr/bin/expr $HOST + 2 '

End= '/usr/bin/expr $START + 28 '

m=224

If [$N-eq 0]; Then

S=0

Else

Let s+= '/usr/bin/expr $END-$START + 1 '

Fi

Fi

If [$ID-eq]; then

Start= '/usr/bin/expr $HOST + 2 '

End= '/usr/bin/expr $START + 4 '

m=248

If [$N-eq 0]; Then

S=0

Else

Let s+= '/usr/bin/expr $END-$START + 1 '

Fi

Fi

Echo-n-E "Device=eth$j\nonboot=yes\nbootproto=static\nipaddr_start=${add}. $START \nipaddr_end=${add}. $END \ nclonenum_start= $S \nnetmask=255.255.255 $M "> $PATH/ifcfg-eth0-range$n

Let n++

Done

4. Execute the Script

#sh iprange.sh

5. Restart the NIC and check if the configuration is successful

#service Network Restart

#ifconfig

6. Deleting a script

Complete!

This article from "Dave-Technology blog" blog, declined reprint!

Linux System Brush Station group IP script