1
00:00:02,200 --> 00:00:10,450
In this lecture we will talk about powerful command which can perform shell Gabon's by firstly what's

2
00:00:10,570 --> 00:00:13,190
in the content of our five day book.

3
00:00:13,210 --> 00:00:16,330
Thanks.

4
00:00:16,330 --> 00:00:26,440
Now let's say that if we want to print output of a date a month before first line so bright said

5
00:00:29,760 --> 00:00:39,450
and for others we can use regular expression with string name as name is present on the first line.

6
00:00:39,450 --> 00:00:48,840
Then as I come on do the letter be followed by some command or commands so we can use for example equal

7
00:00:52,050 --> 00:00:59,790
and they will read print in that month date column and then if you move on to another Kemang just type

8
00:00:59,870 --> 00:01:04,040
semi-colon and continue with another command.

9
00:01:04,080 --> 00:01:17,440
In our case the command shall command date and specify input file table to text.

10
00:01:17,610 --> 00:01:22,450
Can you see that on the first line we have printed actual date.

11
00:01:22,450 --> 00:01:32,200
Pretty amazing how we can easily change the regular text file and add output of some commands into it.

12
00:01:32,250 --> 00:01:41,300
Now we can up output of more commands for example of P.W. the comma.

13
00:01:41,550 --> 00:01:56,580
So right e-comm and we will print output of B W D and then we use another shall command B W D and we

14
00:01:56,580 --> 00:02:01,120
see that it is working perfectly.

15
00:02:01,170 --> 00:02:04,870
We can easily print and date before line with.

16
00:02:04,890 --> 00:02:07,530
But then for example Mark.

17
00:02:07,980 --> 00:02:11,710
So we change the regular expression with string name to string.

18
00:02:11,760 --> 00:02:12,330
Mark

19
00:02:15,480 --> 00:02:19,420
and if you see the date is printed before the line of it.

20
00:02:19,440 --> 00:02:29,160
But then Mark we can also use as an address number of specific line if we specify for example Number

21
00:02:29,190 --> 00:02:38,750
1 we got the output of common date printed in the first line and if we specify a range from first to

22
00:02:39,260 --> 00:02:40,070
last line

23
00:02:48,450 --> 00:02:52,750
and push and then we've got to design it out.