bash - Nagios Output Formatting -

short version:

is there better way of writing check below?

./check_snmp -h x.x.x.x -o oidstring -c public | awk '{print $4}' | sed 's/.$/.&/' | sed -e 's/$/ kb/' 

long version:

i have nagios service check outputs 3 digit number:

./check_snmp -h x.x.x.x -o oidstring -c public  snmp ok - 711 | iso.oidstring=711 

this have done format liking , give accurate value:

./check_snmp -h x.x.x.x -o oidstring -c public | awk '{print $4}' | sed 's/.$/.&/' | sed -e 's/$/ kb/'  71.1 kb 

the output perfect , can run command within centos environment without issue, when attempting implement check within nagios, service not return , value , instead (no output on stdout).

strangely, can perform service test check within nagios successfully, page displays host , service values 1 gives (no output on stdout).

i think nagios doesn't way i'm attempting format output, @ least on web side of things.

is there 'neater' way of writing check above?

thanks in advance.

you can using either single sed (uses dash anchor):

 ... | sed 's/^.*- \([0-9]*\)\([0-9]\) .*$/\1.\2 kb/' 

or single awk:

... | awk '{printf "%s kb\n", $4/10}'