Is there a way to change multiple lines with one loop in Power Shell

Question

I have a text file like this:

info

:

I went to Paris

xxx

yyy

zzz

info

:

I went to Italy

aaa

bbb

ccc

I want this text file to be like this

Info : I went to Paris

xxx

yyy

zzz

Info : I went to Italy

aaa

bbb

ccc

So it will be like;

1- finding every colons

2- (a way) double pressing to backspace button and moving to upper line and pressing spacebar + colon + spacebar + delete button which will get those paris and italy lines to the upper line.

mklement0 · Accepted Answer · 2021-12-12T23:13:59.907

3

Use the regex-based -replace operator:

^{Tip of the hat to Santiago Squarzon for helping to simplify the regex and substitution.}

# Outputs to the screen; pipe to Set-Content to save back to a file as needed.
(Get-Content -Raw file.txt) -replace '(?m)(?<=^info)(?:\r?\n){2}:(?:\r?\n){2}', ' : '

For an explanation of the regex and the ability to experiment with it, see this regex101.com page.

edited Dec 12 '21 at 23:13

answered Dec 12 '21 at 21:13

mklement0

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You make it look so easy hehe, just learnt about non-capturing group that's great – Santiago Squarzon Dec 12 '21 at 21:22
Would it be bad to see it this way? https://regex101.com/r/Eg8DWl/1 opposite of what you're doing – Santiago Squarzon Dec 12 '21 at 21:31
1

Nicely done, @Santiago. Indeed, the explicit capture groups aren't necessary. I've tweaked your solution a bit and took the liberty of updating the answer with it. – mklement0 Dec 12 '21 at 21:42
1

The lookahead wasn't even needed lol have so much to learn, thanks for taking the time to answer that :) – Santiago Squarzon Dec 12 '21 at 21:48

Is there a way to change multiple lines with one loop in Power Shell

1 Answers1