PS-Ruby

PS-Ruby is a simple ps wrapper with ruby. You can see example.rb to learn more...

installation

  gem install ps-ruby

Usage

Display all processes

  > require 'ps-ruby'
  > PS.simple_display

  PID   %CPU  %MEM  COMMAND
  36484 21.1  0.6   /Applications/Google Chrome.app...
  36140 19.0  1.0   /Applications/Google Chrome.app...
  67812 14.7  0.2   /Applications/Sublime Text.app/...
  67813 13.7  0.1   ruby example.rb
  ...

Display special processes by name

  > PS.simple_display("zsh")

or

  > PS.simple_display(/.*zsh.*/i)

or

  PS.find_processes("zsh").simple_display

  PID   %CPU  %MEM  COMMAND
  59395 0.4   0.0   -zsh
  67468 0.0   0.0   -zsh
  83005 0.0   0.0   -zsh

Get special processes by name

  > PS.find_processes("zsh")

  [{
    "USER" => "HondaDai", 
    "PID" => "59395", 
    "%CPU" => "0.4", 
    "%MEM" => "0.0", 
    "VSZ" => "2462760", 
    "RSS" => "3308", 
    "TT" => "s002", 
    "STAT" => "S", 
    "STARTED" => "2:21PM", 
    "TIME" => "0:00.75", 
    "COMMAND" => "-zsh"
  }, {
    "USER" => "HondaDai", 
    "PID" => "83005", 
    "%CPU" => "0.0", 
    "%MEM" => "0.0", 
    "VSZ" => "2462760", 
    "RSS" => "776", 
    "TT" => "s001", 
    "STAT" => "S+", 
    "STARTED" => "10:10PM", 
    "TIME" => "0:01.07", 
    "COMMAND" => "-zsh"
  }, {
    "USER" => "HondaDai", 
    "PID" => "67468", 
    "%CPU" => "0.0", 
    "%MEM" => "0.0", 
    "VSZ" => "2462760", 
    "RSS" => "196", 
    "TT" => "s000", 
    "STAT" => "S", 
    "STARTED" => "Fri03PM", 
    "TIME" => "0:00.78", 
    "COMMAND" => "-zsh"
  }]

Chaining

  > PS.find_processes("zsh").find_process_by("PID", "67468")

  [{
    "USER" => "HondaDai", 
    "PID" => "67468", 
    "%CPU" => "0.0", 
    "%MEM" => "0.0", 
    "VSZ" => "2462760", 
    "RSS" => "196", 
    "TT" => "s000", 
    "STAT" => "S", 
    "STARTED" => "Fri03PM", 
    "TIME" => "0:00.78", 
    "COMMAND" => "-zsh"
  }]

  ms = PS.find_processes("Microsoft")
  word = ms.find_processes("Word")
  ppt = ms.find_processes("PowerPoint")

Get special attribute

  commands = PS.find_processes("Microsoft").pick_attr("COMMAND")

Kill process

  > PS.find_processes("chrome").kill! # kill all processes named '.*chrome.*'

or

  > chrome = PS.find_processes("chrome")[0]
  > chrome.kill!

Check a process alive or not

  > chrome = PS.find_processes("chrome")[0]
  > chrome.alive?

Get all processes

  > PS.get_all_processes