how to increment a number

[Justin_99 · Accepted solution]

Generate the list pretty quick with this.
Just change the -le 150 to the last IP number i used 150 as example, and change xx.xx as well.

hou00us:~> i=0; while [ $i -le 150 ]; do printf "10.xx.xx.%d\n" $i ;i=`expr $i + 1`; done


10.xx.xx.0
10.xx.xx.1
10.xx.xx.2
10.xx.xx.3
10.xx.xx.4
10.xx.xx.5
10.xx.xx.6
10.xx.xx.7
10.xx.xx.8
10.xx.xx.9
10.xx.xx.10
<<>>
10.xx.xx.150

[skt_skt]

c=0;
command|while read a
do
((c=c+$a))
done

[Mike Stroyan]

Charles,
If you use bash shell you can use a for loop
very similar to C language syntax

for ((i=1; i<=100; i++))
do
echo $i
done

[Yogeeraj_1]

hi Charles,

below an example of the nmap output:
=========================================
# nmap -sP 1.2.3.0/24
Starting nmap 3.70 ( http://www.insecure.org/nmap/ ) at 2007-07-23 09:14 MUT
Host 1.2.3.0 seems to be a subnet broadcast address (returned 10 extra pings). Note -- the actual IP also responded.
MAC Address: 00:0E:38:6F:FB:00 (Cisco Systems)
Host 1.2.3.1 appears to be up.
MAC Address: 00:03:6B:A7:0A:60 (Cisco Systems)
Host 1.2.3.2 appears to be up.
MAC Address: 00:17:E0:7E:98:96 (Unknown)
Host 1.2.3.3 appears to be up.
MAC Address: 00:0F:F7:16:1F:1E (Cisco Systems)
Host 1.2.3.4 appears to be up.
MAC Address: 00:0F:F7:16:1F:22 (Cisco Systems)
Host 1.2.3.5 appears to be up.
MAC Address: 00:11:85:F9:49:7A (Unknown)
Host 1.2.3.6 appears to be up.
MAC Address: 00:0E:38:50:97:80 (Cisco Systems)
Host 1.2.3.7 appears to be up.
MAC Address: 00:12:79:CF:55:ED (Unknown)
Host 1.2.3.8 appears to be up.
MAC Address: 00:12:79:CF:56:9F (Unknown)
Host 1.2.3.9 appears to be up.
MAC Address: 00:12:79:CF:55:ED (Unknown)
...
Host 1.2.3.251 appears to be up.
MAC Address: 00:16:17:5D:07:31 (Unknown)
Host 1.2.3.252 appears to be up.
MAC Address: 00:16:17:5C:EA:5C (Unknown)
Host 1.2.3.253 appears to be up.
MAC Address: 00:0C:29:74:2E:79 (VMware)
Host 1.2.3.254 appears to be up.
MAC Address: 00:0E:38:6F:FB:00 (Cisco Systems)
Host 1.2.3.255 seems to be a subnet broadcast address (returned 13 extra pings). Note -- the actual IP also responded.
MAC Address: 00:0E:38:6F:FB:00 (Cisco Systems)
Nmap run completed -- 256 IP addresses (167 hosts up) scanned in 6.706 seconds

=========================================

See if this is acceptable else we will have to work it out using scripts!

kind regards
yogeeraj

[Charles Holland]

situation resolved, Thanks to all who answered the call.

Thanks.

[Charles Holland]

Done.