Instead of manually specify -n that is a multiple of m which could overflow, maybe xargs should have an additional argument to allow -n be the maximum allowable multiple of m?
> $ seq 1000000 | xargs -n $(( 5 * 2000 )) printf '%s\t%s\t%s\t%s\t%s\n' > /tmp/1.txt > $ < /tmp/1.txt awk -e '!($1 && $2 && $3 && $4 && $5)' | wc -l -- Regards, Peng
