linux/tools/perf/Documentation/perf-help.txt
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   1perf-help(1)
   2============
   3
   4NAME
   5----
   6perf-help - display help information about perf
   7
   8SYNOPSIS
   9--------
  10'perf help' [-a|--all] [COMMAND]
  11
  12DESCRIPTION
  13-----------
  14
  15With no options and no COMMAND given, the synopsis of the 'perf'
  16command and a list of the most commonly used perf commands are printed
  17on the standard output.
  18
  19If the option '--all' or '-a' is given, then all available commands are
  20printed on the standard output.
  21
  22If a perf command is named, a manual page for that command is brought
  23up. The 'man' program is used by default for this purpose, but this
  24can be overridden by other options or configuration variables.
  25
  26Note that `perf --help ...` is identical to `perf help ...` because the
  27former is internally converted into the latter.
  28
  29OPTIONS
  30-------
  31-a::
  32--all::
  33        Prints all the available commands on the standard output. This
  34        option supersedes any other option.
  35
  36PERF
  37----
  38Part of the linkperf:perf[1] suite
  39