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In this lecture we are going to explore but in common.

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But firstly let's create a new file called Table that text on the first line.

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Right name then you stop and bright H.

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And again you stop and Bridey on it on other lines.

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I love write information about some people's name age and units.

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So do exactly the same as we will use this file for practicing set C'mon

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So I have three chords and so I will add two more.

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So now I have five records.

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So we can save the file now.

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Now let's say we want to print the lines which contains but then beat that.

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So I said no option needed here then address.

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Use Search bottom beat Peter

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and specify input file which you will be able to text if Iran does

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we see our message missing common this is because we didn't use any said one letter Kemang.

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So Ed paint come on.

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Represented by letter B and we can Hamleys.

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But if you see better line printed two times how is this possible because by default set prints all

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aligned to screen as we used print command for a line containing Peter.

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We printed this line again.

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So this is the reason why we are seeing good FAE's we can suppress printing of each line by set using

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option.

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And so if to previous command option and we should see only line containing bottom.

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Peter

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and we see.

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OK.

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So one time or by default set brings all the lines to standard output using option and we can suppress

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that and if you use print command we will see printed only lines we wanted to see.

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We can say to said that if you want to display only for example subline.

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So in other areas use instead of searching pattern inside slashes some number for example number three

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for a circle line followed by set one letter command.

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In our case letter B.

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And we can see only surd line printed.

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We can ensure by printing output of file table the text that John is really in search line.

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Do not forget that set by default it doesn't change input file.

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So if you previously ran some set commom we didn't change input file.

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Now just for recap if you don't use an option and say to set to print subline we see the output of input

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file you solid line is printed twice.

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We can easily use Range in Andreas for example by saying to myself I'm

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the after reading to said do do one letter command only four lines to 7 as a command.

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I am using here to be in NDC that everything was printed except for this line.

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It doesn't matter.

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Dead in my file.

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I have only six lines.

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If I say in the range do something also for 7 line no error message will be printed by bicep but if

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I want to say directly do something for her age ending in last line I can use Dallara sign which represents

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number of the last line.