I know how to list Network interfaces:
ip ntable | grep dev | sort | uniq | sed -e 's/^.*dev //;/^lo/d'
and how to list ip's :
hostname -i
But Can't manage to list them nice way
Desired output would be:
IPv4:
Interface_1 IP_1, IP2
Interface_2 IP_4
Interface_3 IP_5
IPv6:
Interface_1 IP1
A quick approach that gives you the output in format:
Interface_1
IPv4: xxxxxxxx IPv6: xxxxxxxx
Interface_2
IPv4: xxxxxxxx IPv6: xxxxxxxx
Would be:
for i in $(ip ntable | grep dev | sort -u | awk '{print $2}'); do echo $i; ifconfig $i | grep inet | sed -e 's/\<inet\>/IPv4:/g' | sed -e 's/\<inet6\>/IPv6:/g' | awk '{print $1$2}'; done
You can parse the output to have the format as you like.
Related
##test1 on rhel8 or centos8
$for i in 1 2;do cat /proc/net/dev | grep ens192 | awk '{print "RX:"$2"\n""TX:"$10}';done | awk '{print $0}' | tee 111
##result:
RX:2541598118
TX:1829843233
RX:2541598118
TX:1829843233
I have a list of ip addresses in a text file that I wish to use in a script.
Here is the code outputting the ip addresses in the text file
openstack server list | grep agent | awk '{print \$9}' >> ${STACK}_list.txt
I would like to retrieve the ip addresses and use in a loop by ssh'ing in to them but not sure how to do that
Please refer this post.
script to read a file with IP addresses and login
Might be helpful for you.
Thanks.
Subhadeep
You can use a regex to filter all ip addresses from the server list-output:
openstack server list | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*'
You could pipe this output into a file if you need or to use this within a bash-script you could make something like this, without writing it into a file:
#!/bin/bash
#
ADDRESSES=$(openstack server list | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*')
for ADDRESS in $ADDRESSES
do
echo "ip: $ADDRESS"
done
It reads all ip-addresses from ther server-list output and iterate within the for-loop over this output and prints each ip separate on the terminal. Instead of the echo you could insert your ssh-command.
Example-server on my deployment:
root#m1r1:~# openstack server list
+--------------------------------------+-----------------------+--------+--------------------------+----------------+--------+
| ID | Name | Status | Networks | Image | Flavor |
+--------------------------------------+-----------------------+--------+--------------------------+----------------+--------+
| 46d04a77-4d33-4bb3-8214-b1444eed33a3 | server1 | ACTIVE | l2-network=192.168.4.131 | cirros | XS |
| e9489aca-00c3-4fc9-afc5-515c08b17406 | server2 | ACTIVE | l2-network=192.168.4.61 | | XS |
| ea8cec6a-a8d5-4bbb-970e-aaf65d7374b2 | server3 | ACTIVE | l2-network=192.168.4.163 | cirros | S |
| 7d934ec4-1d53-467b-9220-d67b4b68a832 | server4 | ACTIVE | l2-network=192.168.4.184 | | XS |
| 74d3036e-372a-4566-8ba2-10a0760c5562 | server5 | ACTIVE | l2-network=192.168.4.232 | cirros | XS |
| e08e1637-f4df-478d-a478-6578d038cb22 | server6 | ACTIVE | l2-network=192.168.4.190 | | XS |
| 8307a481-679e-4df0-a64e-3a497b13ac81 | server7 | ACTIVE | l2-network=192.168.4.202 | | XS |
| 38d10b12-daa5-483e-b9a5-9a16ba14d841 | server8 | ACTIVE | l2-network=192.168.4.250 | cirros | XS |
+--------------------------------------+-----------------------+--------+--------------------------+----------------+--------+
Output of this example:
ip: 192.168.4.131
ip: 192.168.4.61
ip: 192.168.4.163
ip: 192.168.4.184
ip: 192.168.4.232
ip: 192.168.4.190
ip: 192.168.4.202
ip: 192.168.4.250
#!/bin/sh
openstack server list | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*' > stack
while $(wc -l stack | cut -d' ' -f1) -gt 0 ]
do
ipnumber=$(sed -n '1p' stack)
echo "${ipnumber}"
sed -i '1d' stack
done
The echo command there is just a placeholder. You can replace it with ssh, or whatever else you want to do, with the IP number in the variable.
I have task extract ip addresses and interface list from ifconfig.
OS FreeBSD
ifconfig output:
em0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
ether 00:50:56:a5:42:13
inet 192.168.1.5 netmask 0xfffffff0 broadcast 192.168.1.255
inet6 fe80::250:56ff:fea1:4213%em0 prefixlen 64 scopeid 0x1
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
em1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
ether 00:50:56:a1:62:19
inet 172.16.16.16 netmask 0xfffffffc broadcast 172.16.16.255
inet6 fe80::250:56ff:fea1:6229%em1 prefixlen 64 scopeid 0x2
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
br0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
ether 00:50:56:a1:55:27
inet 10.10.10.11 netmask 0xffffff00 broadcast 10.10.10.255
inet6 fe80::250:56ff:fea1:5507%em2 prefixlen 64 scopeid 0x3
nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
I want output like this:
em0 : 192.168.1.5
em1 : 172.16.16.16
br0: 10.10.10.11
ifconfig | awk '/inet / {split($2,var,"/*"); print $1,":",var[1]}'
ifconfig | grep -o "inet [0-9]*\.[0-9]*\.[0-9]*\.[0-9]*" | grep -o "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*"
ifconfig | sed -En -e 's/.*inet ([0-9.]+).*/\1/p'
Currently I can extract only ip addresses.
Any help highly appreciated.
Maybe not the smartest solution but you can try it :
while read line
do
[[ "$line" =~ ^[a-z]+[0-9]: ]] && {
var=$(echo "$line" | cut -d' ' -f1)
ip=$(grep -A3 "$var" <(ifconfig) | grep -oP 'inet.{0,15}' | cut -d' ' -f2)
echo "$var" "$ip"
}
done < <(ifconfig)
In case you have only csh (default FreeBSD shell) and need to get the IP's of interfaces -l that are up -u, you could try this:
$ foreach i (`ifconfig -lu`)
ifconfig $i | awk -v i=$i '/inet6?/{print i ": " $2}'
end
This will return IPv4 and IPv6 addresses in the format:
<interface>: IP
From the ifconfig man:
The -l flag may be used to list all available interfaces on the system,
Option -u limits this to interfaces that are up.
If you just need IPv4 (inet) you could use something like:
$ foreach i (`ifconfig -lu`)
ifconfig $i inet | awk -v i=$i '/inet6?/{print i ": " $2}'
end
Try
for ifcfg in $(ifconfig -lu)
do
ifconfig $ifcfg | grep -v inet6 | awk -v ifcfg=$ifcfg '/inet6?/{print ifcfg " : " $2}'
done
Hope it helps.
Also you can extract MAC via following script:
for ifcfg in $(ifconfig -lu)
do
mac=$(ifconfig $ifcfg | grep -o -E '([[:xdigit:]]{1,2}:){5}[[:xdigit:]]{1,2}')
ifconfig $ifcfg | grep -v inet6 | awk -v ifcfg=$ifcfg,$mac '/inet6?/{print ifcfg mac "," $2}' | grep -v lo
done
Output:
em0,00:50:56:a5:42:13,192.168.1.5
em1,00:50:56:a1:62:19,172.16.16.16
I have the following command that I use to rewrite some maxscale output to be able to use it in other software:
maxadmin list servers | sed -r 's/[^a-z 0-9]//gi;/^\s*$/d;1,3d;' | awk '$1=$1' | cut -d ' ' -f 1,5 | sed -e 's/ /":"/g' | sed -e 's/\(.*\)/"\1"/' | tr '\n' ',' | sed 's/.$/}\n/' | sed 's/^/{/'
I am thinking this is way to complex for what I want to do, but I am not able to see a simpler version of this myself. What I want is to rewrite this (output of maxadmin list servers):
Servers.
-------------------+-----------------+-------+-------------+--------------------
Server | Address | Port | Connections | Status
-------------------+-----------------+-------+-------------+--------------------
svr_node1 | 192.168.178.1 | 3306 | 0 | Master, Synced, Running
svr_node2 | 192.168.178.1 | 3306 | 0 | Slave, Synced, Running
svr_node3 | 192.168.178.1 | 3306 | 0 | Slave, Synced, Running
-------------------+-----------------+-------+-------------+--------------------
Into this:
{"svrnode1":"Master","svrnode2":"Slave","svrnode3":"Slave"}
My command does a good job but as I said, there should be a simpler way with less sed commands being run hopefully.
You can use awk, like this:
json.awk
BEGIN {
printf "{"
}
# Everything after line for and before the last ------ line
# plus the last empty line (if any).
NR>4&&!/^([-]|$)/{
sub(/,/,"",$9) # Remove trailing comma
printf "%s\"%s\":\"%s\"",s,$1,$9
s="," # Set comma separator after first iteration
}
END {
print "}"
}
Run it like this:
maxadmin list servers | awk -f json.awk
Output:
{"svr_node1":"Master","svr_node2":"Slave","svr_node3":"Slave"}
In comments there came up the question how to achieve that without an extra json.awk file:
maxadmin list servers | awk 'BEGIN{printf"{"}NR>4&&!/^([-]|$)/{sub(/,/,"",$9);printf"%s\"%s\":\"%s\"",s,$1,$9;s=","}END{print"}"}'
Ugly, but works. ;)
If you want to put this into a shell script, consider a multiline version like this:
maxadmin list servers | awk '
BEGIN{printf"{"}
NR>4&&!/^([-]|$)/{
sub(/,/,"",$9)
printf"%s\"%s\":\"%s\"",s,$1,$9
s=","
}
END{print"}"}'
Is there a way to use shell script to get only the name and net from the result as below:
Result
6cb7f14e-6466-4211-9a09-2b8e7ad92703 | name-erkoev4ja3rv | 2e3900ff36574cf9937d88223403da77 | ACTIVE | Running | net0=10.1.1.2; ing-net=10.1.1.3; net=10.1.1.4;
Expected Result
name-erkoev4ja3rv: 10.1.1.4
$ input="6cb7f14e-6466-4211-9a09-2b8e7ad92703 | name-erkoev4ja3rv | 2e3900ff36574cf9937d88223403da77 | ACTIVE | Running | net0=10.1.1.2; ing-net=10.1.1.3; net=10.1.1.4;"
$ echo "$input" | sed -E 's,^[^|]+ \| ([^ ]+).* net=([0-9.]+).*$,\1: \2,g'
name-erkoev4ja3rv: 10.1.1.4
echo "6cb7f14e-6466-4211-9a09-2b8e7ad92703 | name-erkoev4ja3rv | 2e3900ff36574cf9937d88223403da77 | ACTIVE | Running | net0=10.1.1.2; ing-net=10.1.1.3; net=10.1.1.4;" | awk -F ' ' '{print $3}{print $13}'
Does this satisfy your case?