In this lecture we will talk about powerful command which can perform shell Gabon's by firstly what's
in the content of our five day book.
Thanks.
Now let's say that if we want to print output of a date a month before first line so bright said
and for others we can use regular expression with string name as name is present on the first line.
Then as I come on do the letter be followed by some command or commands so we can use for example equal
and they will read print in that month date column and then if you move on to another Kemang just type
semi-colon and continue with another command.
In our case the command shall command date and specify input file table to text.
Can you see that on the first line we have printed actual date.
Pretty amazing how we can easily change the regular text file and add output of some commands into it.
Now we can up output of more commands for example of P.W. the comma.
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
see that it is working perfectly.
We can easily print and date before line with.
But then for example Mark.
So we change the regular expression with string name to string.
Mark
and if you see the date is printed before the line of it.
But then Mark we can also use as an address number of specific line if we specify for example Number
1 we got the output of common date printed in the first line and if we specify a range from first to
last line
and push and then we've got to design it out.