topic Re: substr in Operating System - Linux

substr

A.G.M. Velthof — Tue, 19 Sep 2006 09:05:59 GMT

Hello all,

I am making a script to determinate a filesystem from the cmviewcl command.
I've come this far.

uname -a|awk '{print $2}'>NODE_NAME
read NODE<$NODE_NAME
cmviewcl -n $NODE|grep -e running|grep -e NAO|awk '{print $1}' > running.out (this produces the file "running.out" with 2 entry's, NAOT01 and NAOT03)
How do I change it, so the script substracts it to a file with the entry's T01 an T03?

Thanks

Re: substr

James R. Ferguson — Tue, 19 Sep 2006 09:11:59 GMT

Hi:

Do you want something like:

# echo "NAT01\nNAT03"|awk '{print substr($1,3)}'

...this snips off the first three characters of the string in $1.

Regards!

...JRF...

Re: substr

Mel Burslan — Tue, 19 Sep 2006 09:12:41 GMT

you can pipe your output to

| cut -c4-

but this only works if you have 3 leading characters bedore the Txx string in the nodenames.

Re: substr

A.G.M. Velthof — Tue, 19 Sep 2006 09:16:19 GMT

Thanks, both solutions work.

Regards, Alfons

Re: substr

Rory R Hammond — Wed, 20 Sep 2006 16:20:21 GMT

NODE=$uname -a |awk '{print $2}')
cmviewcl -n ${NODE} |
awk '($0 ~ /running/ && $1 ~ /NA/) { print substr($1,3)}
'