Question

I need to extract values of specific column. I need to parse output generated with cmd :

netstat -an |

Select-String "TCP\s+.+\:.+\s+(.+)\:(\d+)\s+(\w+)" |

ForEach-Object {

    $key = $_.matches[0].Groups[1].value

    $Status = $_.matches[0].Groups[3].value.

Above 2 strings when printed gives me Foreign IP and connection state. I need a column with port no of local IP to which a foreign IP is connected.

Answer 1

I’m not sure what you mean by a column but I’ve tweaked your regex and this gets the local and foreign addresses and ports:

netstat -an |

Select-String "TCP\s+(.+)\:(.+)\s+(.+)\:(\d+)\s+(\w+)" |

ForEach-Object {

    $LocalAddress =  $_.matches[0].Groups[1].value
    $LocalPort =  $_.matches[0].Groups[2].value
    $ForeignAddress = $_.matches[0].Groups[3].value
    $ForeignPort = $_.matches[0].Groups[4].value

    Write-Output "ForeignAddress: $ForeignAddress `t ForeignPort: $ForeignPort `t LocalAddress: $LocalAddress `t LocalPort: $LocalPort"
}