PowerShell for Windows Admins

Dec 12 2018   7:42AM GMT

Find duplicate characters in a string

Richard Siddaway Richard Siddaway Profile: Richard Siddaway

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Powershell

Staying with our current theme of manipulating strings this is how you find duplicate characters in a string.

 

Convert the string to a char array, group on the characters and use Where-Object to filter the characters that occur more than once – the duplicates. Sort the output for easier viewing.

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