CODEWITHSUNDEEP
powershell
Carlos
Carlos

Reputation: 257

Trimming to the right of a character

I'm trying to trim to the right of a certain character in a text string.

Currently I am using 

$string = "1500 pixels"
$string.Trim(" pixels")

This works fine and returns 1500 but if the last characters aren't " pixels" then it will fail. How do I trim to the right of " "?

Upvotes: 1

Views: 3116

Answers (2)

mklement0
mklement0

Reputation: 438123

James C.'s helpful answer works well, but just to show an alternative using the -replace operator:

> '1500 pixels' -replace ' .*'  # short for: '1500 pixels' -replace ' .*', ''
1500

Regular expression ' .*' matches the first space and everything that comes after (.*), and, due to the absence of a replacement string, replaces what was matched with the empty string, i.e., effectively removes the match.

In case you only want to trim from the rightmost space, LotPings offers this variation:

> '1500 pixels and more' -replace ' [^ ]*$'
1500 pixels and

[^ ]*$ matches any sequence (*) of chars. that aren't a space char. ([^ ]) through the end of the string ($).

Upvotes: 6

henrycarteruk
henrycarteruk

Reputation: 13227

The Split() method can do this for you, it split a string into an array using a delimiter.

You split the string using space " " as the delimiter, then use [0] to return the first element of the array - which is 1500 in your example:

$string = "1500 pixels"
$string.Split(" ")[0]

And [1] to return the second element (pixels), if you also want to know this:

$string.Split(" ")[1]

Upvotes: 6

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