Sets the (user) user ID for this process. Not available on all platforms.
Sets the group ID for this process.
Sets the effective user ID for this process. Not available on all platforms.
Returns the effective group ID for this process. Not available on all platforms.
Process.egid #=> 500
Sets the effective group ID for this process. Not available on all platforms.
Detach the process from controlling terminal and run in the background as system daemon. Unless the argument nochdir is true (i.e. non false), it changes the current working directory to the root (“/”). Unless the argument noclose is true, daemon() will redirect standard input, standard output and standard error to /dev/null. Return zero on success, or raise one of Errno::*.
Returns a Tms structure (see Process::Tms) that contains user and system CPU times for this process, and also for children processes.
t = Process.times [ t.utime, t.stime, t.cutime, t.cstime ] #=> [0.0, 0.02, 0.00, 0.00]
Returns the name of the script being executed. The value is not affected by assigning a new value to $0.
This method first appeared in Ruby 2.1 to serve as a global variable free means to get the script name.
Returns true if the integer value of stat equals other.
Logical AND of the bits in stat with num.
fork { exit 0x37 } Process.wait sprintf('%04x', $?.to_i) #=> "3700" sprintf('%04x', $? & 0x1e00) #=> "1600"
Shift the bits in stat right num places.
fork { exit 99 } #=> 26563 Process.wait #=> 26563 $?.to_i #=> 25344 $? >> 8 #=> 99
Override the inspection method.
system("false") p $?.inspect #=> "#<Process::Status: pid 12861 exit 1>"
Returns the process ID that this status object represents.
fork { exit } #=> 26569 Process.wait #=> 26569 $?.pid #=> 26569
Returns true if stat terminated because of an uncaught signal.
Returns the number of the signal that caused stat to terminate (or nil if self was not terminated by an uncaught signal).
Returns true if stat exited normally (for example using an exit() call or finishing the program).
Returns the least significant eight bits of the return code of stat. Only available if exited? is true.
fork { } #=> 26572 Process.wait #=> 26572 $?.exited? #=> true $?.exitstatus #=> 0 fork { exit 99 } #=> 26573 Process.wait #=> 26573 $?.exited? #=> true $?.exitstatus #=> 99
Returns true if stat is successful, false if not. Returns nil if exited? is not true.
Returns true if stat generated a coredump when it terminated. Not available on all platforms.
Exchange real and effective user IDs and return the new effective user ID. Not available on all platforms.
[Process.uid, Process.euid] #=> [0, 31] Process::UID.re_exchange #=> 0 [Process.uid, Process.euid] #=> [31, 0]