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Substitute command is without any doubt the most used command of all set commands how looks it's structure.

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They can see it right now as a one letter command.

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We are using that as then we have inside slashes regular expression.

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If there is found something which matches regular expression it will be replaced with a replacement

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which is inside another slushies.

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And we can of course use some flack original or cover later.

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Here we have some examples of using substitute command on output from eco commom eco command.

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Output is 1 5 3 and we're putting this out both as an input into set common sense searches for button

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5.

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And surprisingly it finds a string containing that pattern.

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And that thing is five.

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So that string will be replaced by string which is in a replacement place so it will be replaced by

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staying 2.

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And we will see on screen printed one two three and other examples can be substitute all numbers.

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It's free as that is.

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So here we have output of eco commom.

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Hannah is 50 years old and we are using it as an input into set common.

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Wherever you are searching for all numbers and if found we are replacing it with Siri asterisks.

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So from initial output Hannah is 50 years old.

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We will see Hannah is asterisk asterisk asterisk ears of.

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Now we can say something about most famous Fyke G.

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It means globally and what it does.

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You can see examples if you have for example in Bored to set the month 0 2 9 0 5 and we will substitute

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command and replace the 0 zero Awam the output will be 1 2 9 0 5.

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As said Burn forms by default a replacement only for first string which contains that.

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But then in our case 0 but if on the other hand use g.

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Like I said we'll do the replacement for all strings which contains that but.

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Now let's see this substitute command in action.