grep and sed equivalent in PowerShell

问题

I am trying to do the following statement in PowerShell

svn info filename | grep '^Last Changed Date:'| sed -e 's/^Last Changed Date: //'

I have tried this:

svn info filename | Select-String '^Last Changed Date:'

I am expecting below output

Thursday, December 20, 2018 4:50:40 AM

回答1:

To remove the leading label you could use a capture group with the RegEx pattern.

svn info filename | Select-String '^Last Changed Date: (.*)$' | ForEach-Object{$_.Matches.Groups[1].Value)

Or taking Ansgars approach without the match (and repeating the label)

(svn info filename) -replace "(?sm).*?^Last Changed Date: (.*?)$.*","`$1"

回答2:

Use the -match and -replace operators:

(svn info filename) -match '^Last Changed Date:' -replace '^Last Changed Date: '

来源：https://stackoverflow.com/questions/53867147/grep-and-sed-equivalent-in-powershell