Cache the results of your command within the specified time
Currently only supports Linux
Don't use it in serious projects
$ time ./main -c 'seq 1000000 |count' -t 10
500000500000
./main -c 'seq 1000000 |count' -t 10 0.80s user 0.09s system 102% cpu 0.872 total
$ time ./main -c 'seq 1000000 |count' -t 10
500000500000
./main -c 'seq 1000000 |count' -t 10 0.00s user 0.00s system 0% cpu 0.003 total