How to "grep" in PowerShell and also show surrounding lines/context?

Question

What are the "Context Line Control" settings of the Powershell cmd: findstr or what is an alternative Powershell cmd which will let me find a string in some output and also give me the convenience to print surrounding lines?

On GNU/Linux I would do: grep -A 5 -B 5 somestring file.txt

The command below searches for the string "four" but asks grep to show 1 line above the found line and 2 lines below the found line which has the string present.

$ grep -A 2 -B 1 four tmp.text
three
four
five
six
$ cat tmp.text
one
two
three
four
five
six
seven

Thanks

user_964491 · Answer

I found an answer here: https://communary.net/2014/11/10/grep-the-powershell-way/

You can search the example file like:

PS C:\Users\dan> Select-String four .	mp.txt -Context 1,3

  tmp.txt:3:three
> tmp.txt:4:four
  tmp.txt:5:five
  tmp.txt:6:six
  tmp.txt:7:seven

How to "grep" in PowerShell and also show surrounding lines/context?

1 Answers