CODEWITHSUNDEEP
windowspowershellquoting
lit
lit

Reputation: 16236

Backslashes in Powershell

Why does the string for the -split parameter require two backslashes while the string for the -join parameter requires only one backslash? The backtick is the escape character in Powershell. What does a backslash preceding a character do for you?

$path = 'C:\folder\test\unit1\testing\results\report.txt'

$path -split '\\' -notlike '*test*' -join '\'

http://powershell.com/cs/blogs/tips/archive/2014/06/17/fun-with-path-names.aspx

Upvotes: 12

Views: 13927

Answers (2)

Keith Hill
Keith Hill

Reputation: 201682

-split splits on a regex by default. So it is the regex that requires escaping a backslash. You can tell PowerShell not to use a regex like so:

$path -split '\',-1,'SimpleMatch'

-join is just taking whatever characters you supply to use as the delimiter to stick between the strings being joined.

Upvotes: 12

Novakov
Novakov

Reputation: 3095

-split is accepting a regular expression where backslash is special character, so it need to be escaped

Upvotes: 3

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