Question:
I have this code where I can’t seem to backslash the find/replace strings correctly:
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$find = "Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)" $replace = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.2 Safari/537.36" Get-Content prefs.js | %{ $_ -replace $find, $replace } | Set-Content prefs.js |
The $find value isn’t being replaced by the $replace value when this is run.
Answer:
It looks like you deal with literal strings. Do not use the -replace operator
which deals with regular expressions. Use the Replace method:
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... | %{$_.Replace("string to replace", "replacement")} | ... |
Alternatively, if you still want to use -replace then also use [regex]::Escape(<string>). It will do the escaping for you.
Example: replacing text literally with “$_”
Compare the results of the following, showing what can happen if you use an automatic variable in a regex replacement:
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[PS]> "Hello" -replace 'll','$_' # Doesn't work! HeHelloo [PS]> "Hello".Replace('ll','$_') # WORKS! He$_o |