how get ssh awk remote values

Question

im using this script

[test@sys-master ~]$ parallel -k -j 100 sshpass -p test1213'!' ssh -oStrictHostKeyChecking=no -oCheckHostIP=no -q [email protected].{} "cat /proc/loadavg | awk -F \" \" '{ print a,\$1,b }' a="'"$(hostname)"'" b=\$(nproc)" ::: {41..46}.{1..100} 

why return back local value? i need remote(node) values

 sys-master 9.87 24 sys-master 9.99 24 sys-master 11.85 24 sys-master 11.67 24 sys-master 10.75 24 sys-master 8.00 24 sys-master 10.27 24 sys-master 11.94 24 sys-master 10.28 24 sys-master 10.94 24 sys-master 12.02 24 sys-master 9.55 24 sys-master 11.43 2 

Answer 1

It is due to quoting.

GNU Parallel is not part of the shell so every input has to be quoted if it would be interpreted by the shell. And since you call GNU Parallel from a shell (which will interpret input) and GNU Parallel starts a shell (that interprets the input) it has to be quoted twice, unless you use -q, which you can only use if you need the full line to be quoted (i.e. no composed command).

As you can tell it very quickly get confusing. :)

So the general recommendation is to define a bash function and call that.

myloadavg() { sshpass -p test1213'!' ssh -oStrictHostKeyChecking=no -oCheckHostIP=no -q [email protected].$1 "cat /proc/loadavg | awk -F \" \" '{ print a,\$1,b }' a="'"\$(hostname)"'" b=\$(nproc)" } export -f myloadavg parallel myloadavg ::: {41..46}.{1..100}