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In this lecture we are going to talk about change command represented by letter.

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But before we do read what's print output of our file table to text.

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Now let's say that we want to change a line but then B are so right.

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Set

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commander the letter will b c

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as an address we will use Regla expression for switching B are so right B.

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And we will change a line which which contains sputter and B are two.

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He didn't.

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Information from B are a unit.

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So as an option of C Come on.

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Right.

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Hidden information from B.

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Our unit.

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And we also need to specify in Paul's file

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and if we can see that two lines very change and we see two times the information from our unit grade.

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In this same way we can of course change align with any search pattern.

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Let's say that you want to change line with bottom age.

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Our

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So change Regla expression or switching to H R and we see that it is working fine.