runas - Run a program under a specific user / group (poor man's suexec)

peter (Peter Cooperx) — Thu, 10 Apr 2008 08:07:10 GMT

#!/usr/bin/env ruby



# runas - Run another program under the privileges of a specified user and group.

# This is necessary because sudo demands a password, as we need it to be hands off.

# A poor man's suexec basically.



require 'etc'



user, group, cmd = ARGV



begin

  uid = Etc.getpwnam(user).uid

  gid = Etc.getgrnam(group).gid



  unless Process.euid == uid && Process.egid == gid

    Process.initgroups(user, gid)

    Process::GID.change_privilege(gid)

    Process::UID.change_privilege(uid)

  end



  exec cmd

rescue

  puts "Could not run as #{user}:#{group}"

  exit 1

end

Usage example: ./runas username groupname "sleep 10"

Get list of running processes

mstampar (Miroslav Stampar) — Tue, 29 May 2007 23:24:33 GMT



 Console.WriteLine("ID:\tProcess name:");

 Console.WriteLine("--\t------------");

 foreach (System.Diagnostics.Process process in System.Diagnostics.Process.GetProcesses())

  Console.WriteLine("{0}\t{1}", process.Id, process.ProcessName);

DZone Snippets: processes code

runas - Run a program under a specific user / group (poor man's suexec)

Get list of running processes