1 00:00:01,290 --> 00:00:05,950 Let's create some script where we can practice the wildcards. 2 00:00:06,120 --> 00:00:10,110 But firstly we need to do some preparation. 3 00:00:10,110 --> 00:00:19,800 Great director directory Perrott and indeed the directory create few files with PTF extensions. 4 00:00:20,250 --> 00:00:25,920 So textfile one PDA can get also filed too. 5 00:00:26,850 --> 00:00:35,930 And for example something called PTF and you can create also some image file 6 00:00:39,880 --> 00:00:47,920 and also some text file. 7 00:00:48,240 --> 00:00:53,350 You can check that files are created. 8 00:00:53,520 --> 00:01:01,400 Now go back and grade script called back up dot dot sh. 9 00:01:14,290 --> 00:01:17,200 Of course starts with shebang. 10 00:01:17,870 --> 00:01:27,370 Dana Bash and on another line we will write a description of what we are going to build. 11 00:01:27,400 --> 00:01:39,550 Imagine that your boss wants from you to back up all pedia files from Berat location. 12 00:01:39,820 --> 00:01:53,830 So I will go back to copy that part. 13 00:01:54,990 --> 00:01:56,970 So in my case 14 00:02:00,090 --> 00:02:11,880 it is home Richard bash wildcards and your boss wants to copy that files to backup destination 15 00:02:15,070 --> 00:02:26,870 descript should take one out of the man and it is destination bot which needs two ends with Slash Bekka 16 00:02:33,300 --> 00:02:34,350 needs and 17 00:02:38,990 --> 00:02:41,090 with Slash backup 18 00:02:46,150 --> 00:02:47,200 so it can be. 19 00:02:47,200 --> 00:02:52,760 For example home Richard beshe wildcard backup. 20 00:02:52,780 --> 00:02:53,530 In my case 21 00:03:00,790 --> 00:03:07,270 so now we can start the variable assignment. 22 00:03:08,160 --> 00:03:16,480 I will assign into the variable my directory path in your case. 23 00:03:16,480 --> 00:03:21,880 It can be some different directory path. 24 00:03:21,970 --> 00:03:24,100 Now we can do argument check. 25 00:03:24,250 --> 00:03:29,600 So we are sure that descript is run when only one argument is passed. 26 00:03:29,710 --> 00:03:36,170 So if square brackets number of arguments not equal one. 27 00:03:37,030 --> 00:03:44,410 And if that is a valid rule brained uko only one argument 28 00:03:48,730 --> 00:04:01,420 is needed around go or assign zero destination got assigned zero means name of the script and we can 29 00:04:01,510 --> 00:04:06,090 of course exit Scribd here. 30 00:04:06,430 --> 00:04:11,370 If you use a didn't pass an argument or just too much arguments. 31 00:04:11,370 --> 00:04:13,690 So we are exiting with was one 32 00:04:18,250 --> 00:04:19,710 now. 33 00:04:20,260 --> 00:04:23,810 The wildcard spot destination path. 34 00:04:23,920 --> 00:04:24,270 Check 35 00:04:27,820 --> 00:04:35,510 here if we need to check if the destination path and Savitt slash back into destination of variable 36 00:04:35,600 --> 00:04:39,430 assign value of the first argument. 37 00:04:39,530 --> 00:04:40,690 So now right. 38 00:04:40,730 --> 00:04:46,540 If double square brackets are assigned destination 39 00:04:49,210 --> 00:04:50,340 not fo 40 00:04:54,270 --> 00:05:06,380 asterisk which represent any number of characters and slash Back-Up So if destination park doesn't get 41 00:05:06,400 --> 00:05:12,680 back up we will bring in Verdonk destination. 42 00:05:13,000 --> 00:05:18,780 So eco Verdonk destination path 43 00:05:21,190 --> 00:05:36,290 destination path must Antz with Slash like. 44 00:05:37,050 --> 00:05:42,490 And we can program here with some different styles. 45 00:05:42,510 --> 00:05:52,530 For example exit to now we have checked all connections so we can do afterwhile backup actual copy but 46 00:05:52,680 --> 00:06:01,390 we don't we don't have yet great destination folder so great destination for the 47 00:06:05,360 --> 00:06:13,790 for that we need to use and Cadia command to read barometer to be in order to create more than one directories 48 00:06:13,910 --> 00:06:15,640 which do not exist yet. 49 00:06:21,330 --> 00:06:27,580 And V.K. destination and Verby also go in the directory create another directory with current times 50 00:06:27,580 --> 00:06:28,140 then. 51 00:06:28,530 --> 00:06:38,190 So for that I am using date variable and in that date variable I am assigning current date for informa 52 00:06:38,460 --> 00:06:38,820 of 53 00:06:41,850 --> 00:06:42,270 year 54 00:06:45,150 --> 00:06:48,550 month day 55 00:06:53,070 --> 00:06:56,870 and also our 56 00:06:59,520 --> 00:06:59,900 many 57 00:07:03,250 --> 00:07:04,870 and second. 58 00:07:05,290 --> 00:07:15,070 So each time we run this back up script we create new folder where we will backup offerings. 59 00:07:15,100 --> 00:07:21,370 Now we can do copy command copy from brought to destination 60 00:07:26,930 --> 00:07:28,130 so C.P. 61 00:07:35,320 --> 00:07:36,710 a lot of sign brought 62 00:07:40,820 --> 00:07:46,440 and as we want to pick up only be defiance we need to use wild cards again. 63 00:07:46,730 --> 00:07:49,580 So type asterisk dot PTF 64 00:07:52,210 --> 00:07:54,370 and we'll copy to destination. 65 00:07:54,380 --> 00:07:57,140 Slash date. 66 00:08:03,830 --> 00:08:08,270 Now we can also for a recap from previous sections. 67 00:08:08,310 --> 00:08:10,610 That's the exit status of Kopitar month. 68 00:08:10,670 --> 00:08:17,400 So if exists that was of last month equals to zero. 69 00:08:19,150 --> 00:08:23,960 We can print something gleich back up OK. 70 00:08:25,280 --> 00:08:36,490 So if it is that those of last month is equal to zero then equal back up ok. 71 00:08:36,550 --> 00:08:49,790 Otherwise we can bring back up failed. 72 00:08:49,810 --> 00:08:52,240 Now you can save descript 73 00:08:57,500 --> 00:09:02,760 and Vinick to grant permission using chinch month. 74 00:09:03,800 --> 00:09:05,900 And now we can go around descript 75 00:09:11,950 --> 00:09:18,490 I will check all part of my working directory and I will copy that as a scrip argument. 76 00:09:22,580 --> 00:09:24,120 Or maybe not it. 77 00:09:24,140 --> 00:09:29,890 Firstly I will just call a script without any arguments to see it is working. 78 00:09:30,350 --> 00:09:36,750 And then as I got message only one argument is needed because as age destination. 79 00:09:37,010 --> 00:09:41,690 Great This works perfectly in this eco command. 80 00:09:41,690 --> 00:09:45,810 We will do our signs 0 which represents descript name. 81 00:09:45,920 --> 00:09:52,630 And here we can truly see around back up broad as age great. 82 00:09:52,760 --> 00:10:00,220 Now I can pass my working directory but as an honorable man and great Scribners as it did because of 83 00:10:00,220 --> 00:10:01,220 wrong destination. 84 00:10:01,220 --> 00:10:05,590 But I can change the destination part and direct and 85 00:10:09,790 --> 00:10:13,010 is say wrong destination. 86 00:10:14,250 --> 00:10:18,760 Now I can fix it to end with back up and it says Bekka. 87 00:10:18,860 --> 00:10:20,620 Okay great. 88 00:10:20,970 --> 00:10:23,730 So let's check the destination folder. 89 00:10:28,320 --> 00:10:36,480 And I can see that in destination folder it is created timestamp folder with free media files. 90 00:10:36,480 --> 00:10:37,600 Pretty amazing. 91 00:10:42,680 --> 00:10:46,450 So now let's just around descript. 92 00:10:46,460 --> 00:10:47,060 Again 93 00:10:50,980 --> 00:10:52,170 OK. 94 00:10:53,080 --> 00:10:55,210 And check destination Forder. 95 00:11:07,160 --> 00:11:11,540 And we can see that we have time stamps folder here now. 96 00:11:11,810 --> 00:11:13,940 Great. 97 00:11:14,070 --> 00:11:21,220 I recommend you now to go through our script one time or to be sure that you understand everything. 98 00:11:21,900 --> 00:11:23,480 So see you in next lecture.