CODEWITHSUNDEEP
linuxbashping
user7214700
user7214700

Reputation:

ping multiple sub nets / bash

I'm trying to ping multiple sub nets what I'm doing now is simply repeating the loop but I believe should be much simpler solution to do it in one loop

for i in 192.168.0.{1..254} 
do
echo $1 >> live_host_list & disown
done
echo "net 192.168.0.0 Scanned"
echo "starting 10.0.0.0 network"
for i in 10.0.0.{1..254} 
do
echo $1 >> live_host_list & disown
done
echo "net 10.0.0.0 Scanned"

Upvotes: 0

Views: 80

Answers (3)

clt60
clt60

Reputation: 63972

You can very easily generate a list of IP's using perl oneliner.

perl -MNet::IP -lnE '$ip=Net::IP->new($_) or warn "wrong input: $_";while($ip){say$ip++->ip()}'

You need the Net::IP module. The above code - formatted for easy reading:

perl -MNet::IP -lnE '
    $ip = Net::IP->new($_) or warn "wrong input: $_";
    while( $ip ) {
        say$ip++->ip()
    }'

The nice thing with the above is, it could accept many different inputs, e.g. you can use it as:

perl -MNet::IP -lnE '$ip=Net::IP->new($_)or warn "wrong input: $_";while($ip){say$ip++->ip()}' <<EOF
10.10.10.252 - 10.10.11.2
192.168.1.240/29
10.10.9.32 + 7
10.10.100.100
EOF

so, you can use as input

  • range of IP addresses: 10.10.10.252 - 10.10.11.2
  • class-less prefix 192.168.1.240/29
  • start + next N 10.10.9.32 + 7
  • 1 address alone 10.10.100.100

the above produces:

10.10.10.252
10.10.10.253
10.10.10.254
10.10.10.255
10.10.11.0
10.10.11.1
10.10.11.2
192.168.1.240
192.168.1.241
192.168.1.242
192.168.1.243
192.168.1.244
192.168.1.245
192.168.1.246
192.168.1.247
10.10.9.32
10.10.9.33
10.10.9.34
10.10.9.35
10.10.9.36
10.10.9.37
10.10.9.38
10.10.9.39
10.10.100.100

Upvotes: 0

user5900757
user5900757

Reputation: 

   subnetlist=("10.0.0." "10.0.1." "192.168.5.")
 for subn in "${subnetlist[@]}"; do
        echo "starting ${subn}0 network"
        for oct in {1..254}; do
            echo "${subn}${oct}" & disown
       done
    echo "net ${subnetlist}0 Scanned"
    done

Upvotes: 0

123
123

Reputation: 11236

Could do this

for i in '192.168.0.' '10.0.0.';do 
    echo "starting $i.0 network"
    for j in $i{1..254};do 
        echo $1 >> live_host_list $j & disown
    done
    echo "net $i.0 Scanned"
done

Upvotes: 1

Related Questions