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Hello everyone, and welcome to Filters / Text

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Processor commands. This is the lecture where I'm

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going to show you what are the commands, the text

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processing commands that we will cover in this

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lecture, and of course, the following lectures.

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These text processor commands are very powerful.

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That gives a huge advantage to Linux or many other

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operating systems. These commands are, cut, that

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allows you to cut the output. It takes the

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input of a command, or if you're reading a content

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of a file, it takes that in as an input, and then

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it cuts to your desired output. Then,

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goes to awk. awk actually allows you to list by

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the columns. Then we have grep and egrep

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commands, grep and egrep commands are just like as

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if you want to search by the keywords. If you are

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searching for a specific word, let's say warning,

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in our file, you could just grep for warning,

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and into that file, and it will list only the

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lines that contains that word warning. Then the

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sort command. As you see the name, the sort

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command sorts out the output in alphabetical

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order. Then we will learn the unique command. The

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unique command will not show any duplicates. If

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there are words in our file that are

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same as the one previous to it, then the unique

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command will eliminate all duplicates. And then

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last command we will learn is the word count

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command, also referred to as Walker command. So

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some people refer it as vaca, some people

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refer to it as wc count. Anyway, this is the

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one that will tells you how many words, how many

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letters and how many lines do you have in a file

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or in an output. So anyway, we are going to cover

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every one of these commands, and I have separated

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each lecture based on these commands. So you would

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have a very good understanding of how each command

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works. So are you ready to go and practice

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these commands with me in the next lectures. Let's

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go, let's go do it.

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