little help/suggestions needed

[octopus]

I'm struggling with some programing issues and hope someone have done this already.

I wrote some scripts and get: cat: write error: Broken pipe and need som suggestion to solve it.

I'm reading from /tmp / vpnclient-1.log. When I resstart router "with / bin / cat vpnclient-1.log
https://pastebin.com/eXVxdJ4T

Is any other way to read from / tmp or other solution to solve this?

Thanks
Octopus

 

[Martineau]

I'm struggling with some programing issues and hope someone have done this already.

I wrote some scripts and get: cat: write error: Broken pipe and need som suggestion to solve it.

I'm reading from /tmp / vpnclient-1.log. When I resstart router "with / bin / cat vpnclient-1.log
https://pastebin.com/eXVxdJ4T

Is any other way to read from / tmp or other solution to solve this?

Does the following extract the "CN=value" ?

awk '{FS="="} /VERIFY OK: depth=0/ {print $(NF);exit}' /tmp/vpnclient-1.log

EDIT: Updated to 'only match the first occurrence of the string'

 

[octopus]

Does the following extract the "CN=value" ?

awk '{FS="="} /VERIFY OK: depth=0/ {print $(NF)}' /tmp/vpnclient-1.log

Yes it does but multiple times. I need "grep -E -m 1" to.

octopus@RT-AC68U:/tmp/home/root# awk '{FS="="} /VERIFY OK: depth=0/ {print $(NF)}' /tmp/vpnclient-1.log
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com

 

[ColinTaylor]

Try this instead:

CN3="$(grep -E -m 1 "VERIFY OK: depth=0" /tmp/vpnclient-1.log | cut -d ',' -f2 | cut -d "=" -f2)"; echo $CN3

 

[octopus]

Try this instead:

CN3="$(grep -E -m 1 "VERIFY OK: depth=0" /tmp/vpnclient-1.log | cut -d ',' -f2 | cut -d "=" -f2)"; echo $CN3

That working just fine.

octopus@RT-AC68U:/tmp/home/root# CN3="$(grep -E -m 1 "VERIFY OK: depth=0" /tmp/vpnclient-1.log | cut -d ',' -f2 | cut -d "=" -f2)"; echo $CN3
vpn61.prd.kista.ovpn.com

Thanks
I testing if it working with my other codes.

 

[Martineau]

Yes it does but multiple times. I need "grep -E -m 1" to.

octopus@RT-AC68U:/tmp/home/root# awk '{FS="="} /VERIFY OK: depth=0/ {print $(NF)}' /tmp/vpnclient-1.log
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com
vpn61.prd.kista.ovpn.com

Sorry … missed off the 'Only match first line'...see the updated code

 

[octopus]

Sorry … missed off the 'Only match first line'...see the updated code

When I put this together i dont resolv ip-number.

CN="$(grep -E -m 1 "VERIFY OK: depth=0" /tmp/vpnclient-1.log | cut -d ',' -f2 | cut -d "=" -f2)"
GROUP_IP="$(nslookup "$CN" | grep -woE '([0-9]{1,3}\.){3}[0-9]{1,3}' | awk 'NR>2');echo "$GROUP_IP"

 

[ColinTaylor]

You're missing a closing double quote:

GROUP_IP="$(nslookup "$CN" | grep -woE '([0-9]{1,3}\.){3}[0-9]{1,3}' | awk 'NR>2')";echo "$GROUP_IP"

 

[octopus]

You're missing a closing double quote:

GROUP_IP="$(nslookup "$CN" | grep -woE '([0-9]{1,3}\.){3}[0-9]{1,3}' | awk 'NR>2')";echo "$GROUP_IP"

Hm I'm blind ...... too many characters and numbers.
Thanks

 

[octopus]

Thanks @ColinTaylor and @Martineau is seem to working now.

 

[Dabombber]

It might be better not to rely on the IPv4 format for nslookup output (for example 'nslookup google.com ::' or 'nslookup microsoft.com ns1.msft.net'), likewise there might only be an IPv6 address listed.

GROUP_IP="$(nslookup "$CN" | awk 'NR>2&&$1=="Address:"{print $2;exit}')";echo "$GROUP_IP"

If you only want the IPv4 address that'd be better done on the nslookup side

GROUP_IP="$(nslookup -type=A "$CN" | awk 'NR>2&&$1=="Address:"{print $2;exit}')";echo "$GROUP_IP"

 

[octopus]

It might be better not to rely on the IPv4 format for nslookup output (for example 'nslookup google.com ::' or 'nslookup microsoft.com ns1.msft.net'), likewise there might only be an IPv6 address listed.

GROUP_IP="$(nslookup "$CN" | awk 'NR>2&&$1=="Address:"{print $2;exit}')";echo "$GROUP_IP"

If you only want the IPv4 address that'd be better done on the nslookup side

GROUP_IP="$(nslookup -type=A "$CN" | awk 'NR>2&&$1=="Address:"{print $2;exit}')";echo "$GROUP_IP"

Thanks but that not working:

GROUP_IP="$(nslookup -type=A "vpn61.prd.kista.ovpn.com" | awk 'NR>2&&$1=="Address:"{print $2;exit}')";echo "$GROUP_IP"

GROUP_IP="$(nslookup "vpn61.prd.kista.ovpn.com" | awk 'NR>2&&$1=="Address:"{print $2;exit}')";echo "$GROUP_IP"

 

[Dabombber]

Ah sorry, I didn't realise I was using entwares nslookup. Ignore the -type=A option.

 

[octopus]

Ah sorry, I didn't realise I was using entwares nslookup. Ignore the -type=A option.

Doesn't work

GROUP_IP="$(nslookup "vpn61.prd.kista.ovpn.com" | awk 'NR>2&&$1=="Address:"{print $2;exit}')";echo "$GROUP_IP"

 

[ColinTaylor]

Busybox's nslookup returns the info in a different format so you'd need something like:

GROUP_IP="$(nslookup "vpn61.prd.kista.ovpn.com" | awk 'NR>2&&$1=="Address"{print $3;exit}')";echo "$GROUP_IP"

 

[Dabombber]

Mmm, the format is completely different
This should work with either the builtin nslookup or the entware version.

GROUP_IP="$(nslookup "vpn61.prd.kista.ovpn.com" | awk 'NR>2&&/^Address/{if(NF==2){print $2}else{print $3};exit}')";echo "$GROUP_IP"

EDIT: Awk script could be written a little more concisely as

'NR>2&&/^Address/{print $(NF==2?2:3);exit}'

 

[octopus]

Busybox's nslookup returns the info in a different format so you'd need something like:

GROUP_IP="$(nslookup "vpn61.prd.kista.ovpn.com" | awk 'NR>2&&$1=="Address"{print $3;exit}')";echo "$GROUP_IP"

Mmm, the format is completely different
This should work with either the builtin nslookup or the entware version.

GROUP_IP="$(nslookup "vpn61.prd.kista.ovpn.com" | awk 'NR>2&&/^Address/{if(NF==2){print $2}else{print $3};exit}')";echo "$GROUP_IP"

Seems both working now. Thanks.