WEBVTT 00:09.080 --> 00:11.260 Hello Friends will come back. 00:11.260 --> 00:14.490 Welcome to the part two of process management class. 00:14.610 --> 00:15.090 OK. 00:15.220 --> 00:20.140 In this lesson we're going to learn how to set up a priority of an process. 00:20.290 --> 00:22.150 With the help of nice and very nice. 00:22.150 --> 00:22.830 Come on. 00:23.050 --> 00:28.980 And also how to get a process with the help of kill and kill all come on again. 00:29.110 --> 00:35.540 And also we're going to learn that different kinds of signals that are available to process. 00:35.670 --> 00:36.130 OK. 00:36.280 --> 00:39.820 So first of all let's see the nice. 00:39.820 --> 00:40.240 Come on. 00:40.240 --> 00:40.600 OK. 00:40.630 --> 00:42.720 So let's see practically. 00:43.000 --> 00:46.650 First of all let's see here and the top Come on. 00:46.810 --> 00:53.670 And here you can see the top command currently executed by me that means the patient user. 00:53.800 --> 00:56.820 And you can see here the priorities Turkey. 00:56.910 --> 00:57.380 OK. 00:57.490 --> 01:03.630 So who changes priority you need to type in the command like for us. 01:03.710 --> 01:05.880 Do you need an administrator level privilege. 01:05.880 --> 01:09.150 OK so pseudo nice. 01:09.430 --> 01:19.610 Then and then the amount of value that we want to choose from that are already existing pretty OK. 01:19.780 --> 01:25.940 You can set the priority going process from minus 20 to plus 19. 01:26.130 --> 01:26.530 OK. 01:26.620 --> 01:33.010 So here I would like to be treated by 15 then come on then. 01:33.560 --> 01:34.020 OK. 01:34.160 --> 01:41.140 Now here you can see the prototype is generally here from 30 to 15. 01:41.620 --> 01:45.360 In this way you can set up the properties of process. 01:45.430 --> 01:45.740 OK. 01:45.790 --> 01:47.320 With the help of nice. 01:47.320 --> 01:48.000 Come on. 01:48.220 --> 01:49.360 OK let's read in top. 01:49.360 --> 01:50.140 Come on. 01:50.380 --> 01:50.710 OK. 01:50.720 --> 01:55.780 The priorities set back 220 because i log out and log in again here. 01:56.110 --> 02:00.140 So Press Control see this process. 02:00.160 --> 02:00.700 OK. 02:00.850 --> 02:02.930 Now when do you hope to use. 02:02.930 --> 02:03.400 Very nice. 02:03.400 --> 02:04.100 Come on. 02:04.330 --> 02:05.880 So you're very nice. 02:05.890 --> 02:12.400 Come on just use a really nice and then proud that you want to sit. 02:12.400 --> 02:14.690 So I want to sit here. 02:14.810 --> 02:22.270 D minus 10 then Dear iPhone you iPhone you for a user. 02:22.780 --> 02:27.170 I want to see the browser default Prashanth so it enter. 02:27.390 --> 02:29.410 It says permission denied. 02:29.530 --> 02:39.220 So just you see I need to enter into your password and now lives here. 02:39.340 --> 02:44.580 Here you can see the priority of oppression is reduced to then. 02:44.680 --> 02:45.180 OK. 02:45.370 --> 02:49.840 In this way you can set the priorities off nice and really nice. 02:49.840 --> 02:50.650 Come on. 02:51.010 --> 02:54.130 So the next come on that let me show you is Gil. 02:54.340 --> 02:59.310 So the kill command is used to kill any process that is running on your system again. 02:59.590 --> 03:03.770 So you need to provide a process Id kill the process. 03:03.770 --> 03:07.680 Suppose there is a process of stop listening to Background. 03:08.020 --> 03:17.570 And here you can see it displays here the process Id kill that you just need to provide 1 5 0 9. 03:18.100 --> 03:22.100 And here you can see this place in the process is stopped. 03:22.270 --> 03:26.120 So by default it sends a signal number 15. 03:26.130 --> 03:33.700 There are different signals there are total of 64 signals that you can send here with the help of kill 03:33.700 --> 03:38.470 command to list all the signals just type on. 03:38.650 --> 03:40.940 And here you can see these are the signals. 03:41.080 --> 03:41.470 OK. 03:41.530 --> 03:43.600 You can send to the process. 03:43.600 --> 03:44.230 OK. 03:44.810 --> 03:46.840 Let's see the process. 03:46.900 --> 03:51.240 OK here you can see it is showing the process stop here. 03:51.370 --> 03:54.270 When we execute the come on this. 03:54.350 --> 04:01.430 So for nine foot nine here you can see in the above list. 04:01.510 --> 04:06.230 Absolute kill signal or just kill the process completely. 04:06.370 --> 04:14.590 So this idea the process 1 0 9 and here you can see it shows the message. 04:14.800 --> 04:16.140 Let's see. 04:16.140 --> 04:19.820 And now you can see here there is no top process. 04:20.150 --> 04:27.800 It's showing here with the piers come on in this way here it signals having its own importance. 04:28.470 --> 04:34.050 And if you want to go into the dirt you just need to type man and kill. 04:34.150 --> 04:39.760 And here you can see it shows all the things that you can do with the Kill come on and you can apply 04:40.090 --> 04:46.190 this logic to every Come on if you want to go into the depth that is suppose you want to. 04:46.410 --> 04:53.710 One goes into depth four nights and then simply to this and you can see all the things that you can 04:53.710 --> 04:55.240 do with a nice cover. 04:55.520 --> 04:55.940 OK. 04:56.080 --> 05:03.750 In this way you can control the behavior of processes by setting up their priorities and also process 05:03.810 --> 05:08.090 if some process is causing a problem by sending different signals. 05:08.090 --> 05:08.530 OK. 05:08.710 --> 05:11.680 Most powerful signal leads minus nine. 05:11.740 --> 05:14.460 OK no final come on that issue is good. 05:14.490 --> 05:16.560 All that will all come out. 05:16.570 --> 05:19.390 You can get a process by its name. 05:19.390 --> 05:23.150 You go to pro-white the process ID of that process. 05:23.260 --> 05:23.800 OK. 05:23.920 --> 05:29.190 So suppose there is a process of learning and the background. 05:29.410 --> 05:37.590 So to kill this this type come on like this and process them and here you can see it display the message. 05:37.600 --> 05:38.920 The process is still 05:42.600 --> 05:44.160 ok by providing signalized. 05:44.170 --> 05:46.300 No it just blows. 05:46.480 --> 05:49.340 The processes are like CPS. 05:49.410 --> 05:52.570 OK now there is no processes running there. 05:52.870 --> 06:00.020 So in this way you can control the behavior of processes and make sure your system is running faster.