Mr. Shell runs a command on multiple hosts and returns results meaningfully. bash$ mrsh -- "uptime; ls -ald /proc/$$" 09:12:17 -- starting: uptime; ls -ald /proc/8078 on razor bubble corky wisp -- 09:12:17 corky: 09:12:17 up 4 days, 2:14, 14 users, load average: 0.33, 0.22, 0.17 09:12:17 corky: dr-xr-xr-x 6 jettero jettero 0 2009-05-05 07:03 /proc/8078 09:12:18 razor: 09:12:15 up 4 days, 50 min, 9 users, load average: 0.62, 0.35, 0.31 09:12:18 razor: [stderr] ls: cannot access /proc/8078: No such file or directory 09:12:18 wisp: 09:12:30 up 4 days, 14:05, 5 users, load average: 0.04, 0.01, 0.00 09:12:18 wisp: [stderr] ls: cannot access /proc/8078: No such file or directory 09:12:18 bubble: 09:12:20 up 56 days, 16:45, 2 users, load average: 0.15, 0.16, 0.15 09:12:18 bubble: [stderr] ls: cannot access /proc/8078: No such file or directory 09:12:19 razor: -- shell exited with nonzero status: 2 -- 09:12:19 bubble: -- shell exited with nonzero status: 2 -- 09:12:19 wisp: -- shell exited with nonzero status: 2 --