Usage with xargs

[Gary-Armstrong]

I'm trying to do this:

xargs -0 -P $parallel -I {} sh -c "{ date '+START {} %Y-%m-%d_%H:%M:%S' >> $logf; \
	bytes=$(diskus -v {}); \
        echo "{},$bytes" >> $csvf; \
	date '+FINISH {} %Y-%m-%d_%H:%M:%S' >> $logf; }"

But:

diskus: could not retrieve metadata for path '{}'

I'm 96% sure my xargs is correct since I'm just replacing du with diskus in the same construct. The {} comes out as expected elsewhere. Any ideas?

[sharkdp]

If diskus sees "{}" as a literal argument, then something is wrong with your command.