Script error

[Adam W.]

I found this script on one of the threads and thought it would be very usful to track the amount of data coming into my lan. However, I get the below error everytime I try to run it. Can someone help?

# vi lanaction.sh
"lanaction.sh" [Read only] 29 lines, 385 characters
#!/bin/ksh
#################################
# CURRENTLY IN PROGRESS
#
#
#
#################################


function lanad
{
lanadmin<< EOF >/tmp/t 2>&1
lan
display

quit
EOF
cat /tmp/t|grep Inbound|grep Oct|awk '{print $4}'
}
echo "Inbound Bytes per second on default lan interface"
let z=0
while true
do
sleep 1
let x=$(lanad)
let t=$x-$z
echo $t
let z=$x
done
:q!
# sh lanaction.sh
lanaction.sh[10]: Syntax error at line 12 : `<<' is not matched.

[Dennis Handly]

You have a space between the "<<" and "EOF"

[Adam W.]

I removed the space but get the same error.

[Dennis Handly]

>but get the same error.

Is "EOF" in column 1?

[OldSchool]

the E in the second EOF isn't the first character in the line??

you need:

lanadmin <.
...your stuff here..
.
EOF

NOTE: <<-EOF can be used if the second EOF is preceded by one (or more???) tabs

[Duncan Edmonstone]

That whole lanad function looks a bit "round the houses" to me - how about replacing it with something a little simpler:

function lanad
{
echo "lan\ndisplay\n\nquit" | lanadmin 2>&1 | awk '/Inbound Octets/ {print $4}'
}

HTH

Duncan

[Duncan Edmonstone]

Incidentally another "problem" with this script is that it will only print stats for the "default" lan interface for lanadmin (which is defined as the first one you see when you run lanscan). That might not be the interface you are actually using...

HTH

Duncan

[Adam W.]

Duncan your suggestion worked wonderfully.

I am still a bit confused as to why the original doesn't work though. The second "EOF" is the first character in that line, so even though yours worked well duncan, I would still like to know where I messed up the first time.

[Adam W.]

Also, Duncan, how would you suggest, getting this data for ALL lan interfaces?

[OldSchool]

well...if you post the original as an attachment it would help, as the attachment won't mess with spacing like a regular post does.

[Duncan Edmonstone · Accepted solution]

For all lan interfaces? Something quick and dirty like this?

#!/usr/bin/sh
lanscan -p | while read ppa
do
z[${ppa}]=$(lanadmin -g mibstats ${ppa} 2>&1 | awk '/Inbound Octets/ {print $4}')
done
echo "Inbound Bytes per second on all lan interfaces"
while true
do
sleep 1
lanscan -p | while read ppa
do
x[${ppa}]=$(lanadmin -g mibstats ${ppa} 2>&1 | awk '/Inbound Octets/ {print $4}')
(( t=${x[${ppa}]} - ${z[${ppa}]} ))
echo "lan${ppa}\t${t}"
z[${ppa}]=${x[${ppa}]}
done
done

What are you hoping to see from this data? Inbound octets don't tell you much about any particular interface...

HTH

Duncan

[Adam W.]

Got it old school.

[Adam W.]

Thanks Duncan that works very well, really I am just "messing around" to see what can be done, and have a little fun with it. Just interesting to know how much is coming in is all.

[OldSchool]

Adam,

for what its worth, the script you attached did not generate the syntax errors you reported....so i've got nothin for you

[Dennis Handly]

>ME: You have a space between the "<<" and "EOF"

I found this space doesn't matter. But in the other place it matters.

[Adam W.]

Well Old School, I still get the error. I will figure something out. Thanks Guys! I appreciate your help