PowerShell convert string / manipulation: substring etc.

 

 In this article I show a few examples for manipulating strings (character strings) 

.ToUpper()

Converts a string to uppercase letters

PS C:\> $("test").ToUpper()
Result:
TEST

.ToLower()

Converts a string into lowercase letters

PS C:\> $("TEST").ToLower()
Result:
test

.Contains()

Tests a string whether a certain string is present

PS C:\> $("TEST").Contains("ES")
Result:
True

.StartsWith()

Tests a string to see if it starts with a certain string.

PS C:\> $("TEST").StartsWith("TE")
Result:
True

.EndsWith()

Tests a string to see if it ends with a specific string.

PS C:\> $("TEST").EndsWith("ST")
Result:
True

.Replace()

Replaces a specified string within a string

PS C:\> $("TEST").Replace("TE","ersetzt")
Result:
ersetztST

.Substring()

Replaces parts of a string based on their position

PS C:\> $("TEST").Substring("1")
Result:
EST

here is another example: start and end position:

PS C:\> $("TEST").Substring("1","2")
Result:
ES
  • 1 ... after the first character
  • 2 ... up to the 2nd character

If only the end position should be used, it looks like this:

 

PS C:\> $("TEST").Substring("","3")
Result:
TES

.TrimStart()

Removes certain characters at the beginning of the string:

PS C:\> $("TEST").TrimStart("TE")
Result:
ST

 

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