Finding stuff with top:
(Note that the 1 indicates the number of times to take a sample)
C02MW21AFD59:cc-portal michaelfernando$ top -l 1 | grep ruby
83441 ruby 0.0 00:59.84 2 0 8+ 264+ 113M+ 100M+ 0B 0B 127M+ 2554M+ 83440 1 sleeping 501 246375+ 24001+ 13+ 4+ 1964300+ 36+ 8340+ 0 457K+ 32K+ 334 0.0 michaelfernando
83439 ruby 0.0 00:59.96 2 0 8+ 268+ 115M+ 103M+ 0B 0B 131M+ 2558M+ 83438 1 sleeping 501 233596+ 24079+ 8+ 4+ 1967378+ 36+ 8641+ 0 462K+ 38K+ 295 0.0 michaelfernando
83437 ruby 0.0 00:59.09 2 0 8+ 285+ 128M+ 117M+ 0B 0B 165M+ 2586M+ 83436 1 sleeping 501 261641+ 25082+ 16+ 4+ 1963939+ 91+ 6608+ 2+ 582K+ 83K+ 402 0.0 michaelfernando
83435 ruby 0.0 00:58.69 2 0 8+ 281+ 127M+ 115M+ 0B 0B 161M+ 2582M+ 83434 1 sleeping 501 272724+ 24994+ 14+ 4+ 1965331+ 86+ 4643+ 91+ 577K+ 104K+ 476 0.0 michaelfernando
83433 ruby 0.0 00:58.41 2 0 8+ 286+ 164M+ 153M+ 0B 0B 219M+ 2625M+ 83432 1 sleeping 501 247795+ 25966+ 12+ 4+ 1963142+ 56+ 9207+ 0 578K+ 45K+ 323 0.0 michaelfernando
83431 ruby 0.0 00:58.84 2 0 8+ 282+ 166M+ 155M+ 0B 0B 207M+ 2607M+ 83430 1 sleeping 501 244891+ 25919+ 12+ 4+ 1976017+ 51+ 9774+ 0 562K+ 44K+ 333 0.0 michaelfernando
83429 ruby 0.0 00:57.64 2 0 8+ 264+ 114M+ 99M+ 0B 0B 140M+ 2568M+ 83428 1 sleeping 501 259317+ 23723+ 11+ 4+ 1958026+ 40+ 4125+ 0 473K+ 37K+ 482 0.0 michaelfernando
83427 ruby 0.0 00:59.41 2 0 8+ 274+ 121M+ 109M+ 0B 0B 151M+ 2574M+ 83426 1 sleeping 501 236837+ 25305+ 14+ 4+ 1982996+ 43+ 8050+ 0 485K+ 43K+ 208 0.0 michaelfernando
77623 ruby 0.0 00:22.99 6 0 24+ 368+ 222M+ 221M+ 0B 0B 292M+ 2667M+ 77623 28392 sleeping 501 388402+ 2072+ 230+ 103+ 1748526+ 2650+ 44203+ 4+ 2535K+ 1061K+ 11578 0.0 michaelfernando
28333 rubymine 0.0 24:46.92 61/1 1 361+ 6669+ 1288M+ 1110M+ 0B 720K+ 1447M+ 7328M+ 28333 278 running 501 3671512+ 13609+ 2151710+ 741001+ 13244471+ 5308353+ 7188150+ 48+ 22M+ 667M+ 1905207 0.0 michaelfernando