问题
I was trying to find a way in powershell to remove more than one white space.
But what i found is how to do it in php. "Removing more than one white-space"
There will be similar regular expression may available .
How to acheive the same in powershell?
My string is like this
Xcopy Source Desination
Some lines may contain more than one white space between Source and destination.
回答1:
If you're looking to collapse multiple consecutive whitespace characters into a single space then you can do this using the -replace operator:
'[ Hello, World! ]' -replace '\s+', ' '
...returns...
[ Hello, World! ]
The first parameter to -replace is a regular expression pattern to match, and the second parameter is the text that will replace any matches. \s will match a whitespace character, and + indicates to match one or more occurrences, so, in other words, one or more adjacent whitespace characters will be replaced with a single space. Enter help about_comparison_operators or see here for more information.
来源：https://stackoverflow.com/questions/8686816/removing-more-than-one-white-space-in-powershell