lsproc

$ ls /proc
1      130    17832  2      32075  5794  835        diskstats    pagetypeinfo
10     1311   17833  20     36     5821  84         dma          partitions
102    1328   17900  20486  3662   637   85         driver       sched_debug
103    1335   17904  21     3778   6600  86         execdomains  self
1070   13541  17905  22     3783   662   87         fb           slabinfo
10932  1358   17911  23     38     672   88         filesystems  softirqs
10938  1362   17915  231    3808   681   9          fs           stat
10942  1367   17916  232    39     7     90         interrupts   swaps
11     1374   18     23463  4380   703   927        iomem        sys
1108   13774  18331  237    4866   709   93         ioports      sysrq-trigger
1110   13775  18332  24     4965   710   930        irq          sysvipc
1116   13779  18333  243    5      716   931        kallsyms     timer_list
1119   1392   18336  246    5106   718   94         kcore        timer_stats
1120   1402   18337  247    521    720   95         key-users    tty
1149   1403   18338  25     530    729   950        keys         uptime
11802  1413   18339  26     535    742   96         kmsg         version
11808  1414   18358  265    537    76    acpi       kpagecount   vmallocinfo
11812  1435   18366  266    544    763   asound     kpageflags   vmstat
12     15     18367  269    546    77    buddyinfo  loadavg      zoneinfo
12302  16     18505  270    547    78    bus        locks
12303  161    18506  28     548    79    cgroups    meminfo
1238   163    19     2809   550    8     cmdline    misc
1245   17     19252  29     551    80    consoles   modules
1258   17331  19263  3      555    81    cpuinfo    mounts
129    17582  19264  30     577    82    crypto     mtrr
13     17828  19308  3177   578    83    devices    net