WEBVTT 00:08.960 --> 00:14.640 Hider welcome back in this lesson we're going to talk about the advanced process management tools. 00:14.650 --> 00:15.090 OK. 00:15.190 --> 00:18.120 Like estop have zijn jobs. 00:18.280 --> 00:23.230 So let's see how to manage the processes with the help of these advanced tools. 00:24.050 --> 00:30.360 You get first of all you need to install the stop command because by default it is not present on any 00:30.400 --> 00:31.520 Linux system. 00:31.550 --> 00:32.680 You need to install it. 00:32.720 --> 00:34.030 So install. 00:34.220 --> 00:43.580 You just need to type sudo and get install and stop and hit enter and then it will ask for your password 00:43.660 --> 00:45.950 then you need to insert your password. 00:46.070 --> 00:46.690 OK. 00:46.950 --> 00:48.910 I will install it on my machine. 00:48.980 --> 00:53.250 So that's why I work to start it directly like this stock. 00:53.310 --> 00:53.890 OK. 00:53.990 --> 00:57.670 So this is how the code looks with that path. 00:57.710 --> 00:58.600 Stop Come on. 00:58.680 --> 01:06.750 But right now I'm going to critique because you cannot formalise some of operations correctly with normal 01:06.750 --> 01:07.270 users. 01:07.280 --> 01:11.340 You need to be an administration to perform its task here. 01:11.510 --> 01:16.550 So you need to be Ruki users who just switch user come on. 01:16.700 --> 01:19.870 So you log in zoo. 01:20.100 --> 01:23.020 And you need to use your root password. 01:23.270 --> 01:28.560 OK now I log in as root and then type and stop and here. 01:28.670 --> 01:31.250 Now we are log in as root. 01:31.280 --> 01:37.330 Now we can perform any operations that can be performed with the help of this stuff. 01:37.320 --> 01:37.970 Come on. 01:38.150 --> 01:45.890 So let's talk about each option present here and what it's trying to say to us get in the output. 01:45.890 --> 01:52.880 So let's talk about the first option or the output here you this option here or this menu here tells 01:52.880 --> 01:58.040 us that the amount of sleep you involvement inside the processes. 01:58.070 --> 02:05.180 That means two point zero two point six OK this amount is constantly changing. 02:05.180 --> 02:08.540 That is in Walmer talk to you in the process. 02:08.580 --> 02:09.030 OK. 02:09.140 --> 02:13.600 It is the AMO go in Walmart publicity you in handling the processes. 02:13.700 --> 02:15.920 So the next one is memory. 02:16.040 --> 02:20.580 It is the amount of memory used by the processor. 02:20.570 --> 02:27.250 So here you can see there is total nine hundred ninety nine of memory available and out of that fifty 02:27.320 --> 02:31.200 seven point one megabyte of memories used. 02:31.280 --> 02:40.800 And the next one is sap that is W.P. step is in memory which is an extension to our physical memory. 02:40.800 --> 02:48.170 So that is not an actual memory but it is in files which is present on our harddrive and which acts 02:48.170 --> 02:50.980 as an extension to our physical RAM. 02:50.980 --> 02:51.420 OK. 02:51.650 --> 02:59.020 So there is one thousand twenty four megabyte of [REMOVED] members present and out of that zero. 02:59.190 --> 03:00.920 Bike is used. 03:00.940 --> 03:01.200 OK. 03:01.220 --> 03:11.000 So let's talk about the next row here and that is tasks and there are total 26 task and then 15 turret's 03:11.090 --> 03:17.180 and off of that one is running the next row shows us that the load average. 03:17.180 --> 03:25.260 So what does leverage leverage to is the time taken by the SIP you pulled each process one by one. 03:25.280 --> 03:26.720 Linux isn't multitasking. 03:26.720 --> 03:29.420 So that's why it is the loading average. 03:29.420 --> 03:31.910 So it displays your true values. 03:32.000 --> 03:39.040 So the three values here represents the load average for three different timings. 03:39.380 --> 03:43.580 So the first Velu shows us the Lord is for last five minutes. 03:43.640 --> 03:49.660 The second volume shows us the lowdown Resch last 10 minutes and the tol'able shows us to Lola read 03:49.880 --> 03:51.900 since last 15 minutes. 03:52.150 --> 03:54.400 OK here you can see this loadout. 03:54.410 --> 03:56.460 It is also constantly changing. 03:56.720 --> 04:00.740 OK the next two shows us up time uptime since last night. 04:00.740 --> 04:02.210 So what is Stargate. 04:02.200 --> 04:04.110 The total amount of time. 04:04.170 --> 04:04.740 OK. 04:04.850 --> 04:09.060 That goes for what is started and running continuously. 04:09.360 --> 04:09.650 OK. 04:09.650 --> 04:15.010 Here you can see on the server restarted since last 22 minutes. 04:15.290 --> 04:18.060 OK let's talk about the next row here. 04:18.230 --> 04:18.700 OK. 04:18.730 --> 04:22.530 Now we're going to see each column here one by one. 04:22.550 --> 04:24.580 So the first one is B ID. 04:24.580 --> 04:31.630 The ID stands for the process ID process ID is a number with both which we can do any process. 04:31.630 --> 04:32.110 OK. 04:32.210 --> 04:39.050 By providing this number the next one needs the user the user who started the process. 04:39.080 --> 04:39.570 OK. 04:39.770 --> 04:42.690 The name of the user is provided in this column. 04:42.800 --> 04:43.490 OK. 04:43.490 --> 04:51.020 So here you can see 1 6 6 2 is in process ID and that process is started by the user group. 04:51.050 --> 04:54.450 OK the next column represents the PR. 04:54.470 --> 05:00.040 That is the priority we saw in our previous lesson how to set up the priorities. 05:00.260 --> 05:04.830 OK we can also set the priorities in this tool. 05:05.060 --> 05:10.750 And it is very easy to set the priorities with the help of this stop Come on. 05:10.760 --> 05:14.970 So we're going to see in a few minutes how to set up the priorities. 05:15.170 --> 05:22.610 But for now just understand here this column represent the priorities the next column is and I that 05:22.610 --> 05:31.560 is the nice you then after that I it isn't what called memory size or it is the memory that is claimed 05:31.680 --> 05:34.330 but not actually used by the process. 05:34.380 --> 05:42.510 So the root user hiring process Heidi 1 6 6 2 clemmed maybe five thousand eight hundred thirty two kilobytes 05:42.680 --> 05:46.120 will get in the next column. 05:46.530 --> 05:52.590 Yes that is the reason for memory and it is tool maybe user or by the process. 05:52.720 --> 06:03.990 So of of five thousand eight hundred thirty two 3300 kilobytes memory is used here by the Roop user. 06:04.170 --> 06:06.730 And the next column is shared memory. 06:06.780 --> 06:12.930 So this column represents us the memory which is shared with other processes. 06:13.020 --> 06:13.840 OK. 06:13.860 --> 06:16.100 Out of the IRG memory. 06:16.210 --> 06:16.630 OK. 06:16.740 --> 06:21.410 The next column represents the status of deep processes. 06:21.450 --> 06:24.460 So there are different statuses of the processes. 06:24.510 --> 06:29.050 So here you can see the first represents our army. 06:29.040 --> 06:31.090 So that is the running process. 06:31.320 --> 06:33.700 Yes means it is in sleeping mode. 06:34.200 --> 06:38.710 If you find the that means it is either too slow or stop it. 06:39.000 --> 06:47.140 If you find Zelle that means it is in zombie process and if you find the means and the process is in 06:47.140 --> 06:54.600 the state of an interpreter will sleep OK after that the next column represents spew the amount of time 06:54.600 --> 06:58.530 spent by the spew on that process. 06:58.590 --> 07:04.950 The next one is the memory the memory column or the presence of physical RAM it or by the process you 07:04.980 --> 07:11.370 get the next column is time this time column shows us since last. 07:11.370 --> 07:14.300 The process is running all the time. 07:14.370 --> 07:21.330 It by the process or you can also say that the running time of the process and the next one is come 07:21.330 --> 07:21.770 on. 07:21.900 --> 07:26.090 So this column shows us to come on that. 07:26.110 --> 07:27.460 The process started. 07:27.670 --> 07:31.250 Or Linkov to come on with the process. 07:31.300 --> 07:40.250 So the top commander is displayed here and it's process IDs 1 6 x 2 and it is started by the user. 07:40.440 --> 07:45.630 In this way all these columns expenses this very useful information. 07:45.630 --> 07:49.440 OK let's talk about all the options present at the bottom. 07:49.770 --> 07:51.090 Let's talk about of one. 07:51.090 --> 07:55.070 When you press one then you get this help menu here. 07:55.350 --> 08:04.350 And if you want to understand the shortcuts then you can see here you can learn more things with this 08:04.350 --> 08:08.010 help menu then the next one is as to. 08:08.160 --> 08:16.710 So then press F to then the use of two is to set up or to customize the output of this stop. 08:16.710 --> 08:17.390 Come on. 08:17.410 --> 08:22.410 And so you can see or you can customize how it should look to the bottom. 08:22.530 --> 08:27.470 You can control this middle path arrow keys and then Turkey. 08:27.930 --> 08:35.690 You can also send the colors that should reappear handout or the columns that should be opened. 08:35.790 --> 08:40.530 Again you can determine or said anything with the help of this EF 2. 08:40.560 --> 08:47.670 So I'm not going to customize this right now because this output that present is pretty good. 08:47.670 --> 08:51.290 So after that the next option is S3. 08:51.300 --> 08:57.900 So with the help of S3 you can search a particular Come on supposedly here in the command column you 08:57.900 --> 09:01.220 can see there are different com ones are displayed. 09:01.260 --> 09:08.520 So when I type in a b snap D then here you can see it shows us to snap any Come on. 09:08.520 --> 09:15.600 And when you press if they are good it shows you the next game once get in this way you can search a 09:15.600 --> 09:22.860 particular process with the help of it's come on name you get the next option is for when you press 09:23.010 --> 09:25.870 for that you can filter OK. 09:25.900 --> 09:30.530 There is also work like there's three just type. 09:30.670 --> 09:31.170 C'mon. 09:31.170 --> 09:34.060 Suppose I want type or I want filter. 09:34.140 --> 09:35.550 I see. 09:35.850 --> 09:36.500 OK. 09:36.510 --> 09:38.820 I want to fill that SICAD then. 09:39.090 --> 09:41.150 It is showing us all the processes. 09:41.160 --> 09:47.100 OK with this thing come on name it this way you can use this option here. 09:47.300 --> 09:56.160 Press then returns restarted again and start the next one is fine with the help of your file you can 09:56.160 --> 09:58.990 see here the command column. 09:59.220 --> 10:07.890 When I press for you then you get all the processing reformat or all the commands in every format. 10:07.980 --> 10:15.420 Here you can see the Su's group and here that started this stuff. 10:15.420 --> 10:16.090 Come on. 10:16.290 --> 10:16.710 OK. 10:16.800 --> 10:22.980 So you can get in the root of that process or this come on or you can get the information. 10:23.630 --> 10:30.260 As compared to other options and with the help of this think of this the next option is sought by that 10:30.300 --> 10:38.510 is of six when you press at 6:00 then you can see here you choose a different option you can sort out 10:39.110 --> 10:45.790 by process ID or by user or by priority or by nice values. 10:45.950 --> 10:51.000 Ok there are different options riddle of which you can sort. 10:51.030 --> 10:56.740 So suppose I want to sort out what my user can select this user I need to enter. 10:56.820 --> 11:05.680 Now you can see the output is sorted based on users like this. 11:05.890 --> 11:13.470 The next option is at 7 7 and you can set highest priority nice value. 11:13.630 --> 11:14.250 OK. 11:14.270 --> 11:17.740 Love is though value means higher priority. 11:17.750 --> 11:25.620 So here this present user is having priority 20 and I want to set it too high. 11:25.640 --> 11:27.480 So press have seven. 11:27.500 --> 11:32.100 So as I press f7 the value decrease this year. 11:32.450 --> 11:37.760 Now it is said to turn it on if you want to increase the value. 11:37.760 --> 11:40.660 That means you want to set the lowest priority. 11:41.180 --> 11:51.970 Then you can press effect OK like this and by pressing up work you can set it to normal in this way 11:51.980 --> 11:53.690 you can set up the priorities. 11:53.750 --> 11:59.360 F7 and Peggy and the next option is nine with the help of health nine. 11:59.360 --> 12:05.930 Come on you can directly kill any process that is running in this column. 12:06.170 --> 12:10.810 OK so suppose I want to kill this process. 12:10.810 --> 12:11.770 Prashant. 12:11.920 --> 12:13.110 Good or. 12:13.210 --> 12:17.970 OK let's kill this process top so to kill that press night. 12:18.130 --> 12:18.410 OK. 12:18.410 --> 12:25.320 Now here of the pressing of mine you can see here there are different signals that you can send. 12:25.410 --> 12:25.800 OK. 12:25.910 --> 12:27.790 So you need to select these signals. 12:27.820 --> 12:36.310 So of all the signals I want to select nine because signalized means the absolute key. 12:36.440 --> 12:36.870 OK. 12:36.980 --> 12:39.350 So when you send the signal. 12:39.830 --> 12:40.120 OK. 12:40.130 --> 12:42.970 Now our prosess stop here. 12:43.150 --> 12:43.860 OK. 12:44.290 --> 12:51.590 In this way you can send a different signal so you can learn about it signal by searching online because 12:51.850 --> 12:53.780 the signals are a lot signals. 12:53.780 --> 13:01.840 And of course that signal number nine is for absolute kill signal number 15 is for stopping a process. 13:02.030 --> 13:04.470 So these two are important signals. 13:04.790 --> 13:09.510 So just log out here Exhibit No. 13:10.010 --> 13:11.910 We are here as Prashant. 13:11.960 --> 13:19.220 So the next come on that I would like to show you is jobs with jobs come on you can see the list of 13:19.220 --> 13:21.540 jobs that are running on your system. 13:21.590 --> 13:25.050 Currently there is no job is running on a system. 13:25.070 --> 13:30.650 OK so suppose I come on it stop and send it back around. 13:30.940 --> 13:31.570 OK. 13:31.760 --> 13:41.440 So when I type jobs here you can see it shows us the stop command is running and it isn't stop rested. 13:41.780 --> 13:48.050 So you can see the list of jobs that are currently running on your system with the help of jobs come 13:48.050 --> 13:49.120 on. 13:49.160 --> 13:52.820 The next one that I would like to show you is F G F G. 13:52.820 --> 14:01.440 Come on you used to start the job OK or restart a job that is top to the background. 14:01.520 --> 14:05.960 So you just need to provide here key. 14:06.170 --> 14:12.710 And after that the process name is there is only one process or the job is running that you don't need 14:12.710 --> 14:14.940 to prove anything this data. 14:15.260 --> 14:19.980 And here you can see updating enter our process started back. 14:20.350 --> 14:23.750 In this way and the jobs come on work. 14:23.780 --> 14:31.760 OK so suppose I type stop quick stop 14:34.580 --> 14:40.090 yoga there are companies that are running in the background with the same name. 14:40.120 --> 14:46.730 So if you want to start the second process then you need to cloyed option like this. 14:46.750 --> 14:47.340 OK. 14:47.470 --> 14:52.460 That is more and if you want to start the first day like this. 14:52.540 --> 14:53.210 OK. 14:53.470 --> 15:01.070 So if you having more than one processes all jobs running then just provide the option like this one 15:01.090 --> 15:02.110 two three. 15:02.120 --> 15:09.970 Well anything that is done and you can start that process back like this to get in this way you can 15:10.000 --> 15:17.830 perform the operations on the Linux system with the help of this pretty useful and very interesting 15:17.890 --> 15:19.060 colorful tool. 15:19.230 --> 15:19.660 OK.