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In this lecture we're going to use a in our script and I will show you what we've built.

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Firstly I wrote the content of my directory where I have few text files and now I relied on the script

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at a dot s h

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discrete stores in a names of all text files and then iterate through aere and for each text file it

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brings in two square brackets information.

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What is the line of that file name and also information.

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If we have permission to write into that file so I will now remove the script and create new

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on the first line.

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I will start with shoving Dana Bash then into the the.

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Video store.

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All text files names and even use command.

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As for that

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but as if you are using our command for every assignment we need to come on substitution so we can do

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that by prepending dollar sign and before anti-seize which contains our common

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because we will be looking for a it will be nice to have some Guntur so we can identify what index we

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are processing right now.

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And we will start with Guntur which has the values 0 0 index in a means first item.

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Now we can loop through array.

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So for a file in a in all items

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and I am using at symbol for death in square brackets.

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So for each file we will do some commands and we will do that between do and damn keyboard.

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So we can print Firstly filename

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and then into firebrick it gets

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so into that square brackets we can write its name length and we will do that using an 8 index as we

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are practicing all about at now.

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So in the square brackets we are putting value of variable count so here into curly brackets we are

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starting with Esch then at a and then into square brackets we are placing

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output a viable count and it represents a index.

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Now we can bring in if that file is a writer or not.

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So we are asking if that file is a writer.

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And for that if we are of course using and.

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And if that file is of writing go we'll put in

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top followed by string.

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Yes.

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And because of the special character we need to use eco dash.

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And if the file is not right or wrong we will print up for it by saying no.

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Now we can also increment a counter and basically

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if we do then we are done we create.

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So now we can say that

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now Grant exec what permissions and around the script

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great.

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It is working.

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But to be sure that it is really working.

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I will remove the right permissions from file introduced text

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and now after running discreate we see dead file in the text is not the right level.

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Great but it seems to hit.

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I forgot to do a header so I opened the script again

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and after assignment of Redbook count

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right equal with parameter even because the values stop and write filename backslash the represent stop

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right there.

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Bill and save the script now and then again and Gray Davis see the script US-Soviet the heater output

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of the data.

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It works perfectly.