I wanted to extract some strings from some text files. After some researching for that files, I found some pattern that strings appear in a text file.
I composed a short powershell script by help of google-search. This script receives two parameters (textfile path and extracting keyword) and operates extracting strings from text file.
As finding & extracting the target strings from the file $tpath\temp.txt, this script saves it to another file $tpath\tmpVI.txt.
Set-PSDebug -Trace 2 -step
$txtpath=$args[0]
$exkey=$args[1]
$tfile=gc "$tpath\temp.txt"
$savextracted="$tpath\tmpVI.txt"
$tfile -replace '&', '&' -replace '^.*$exkey', '' -replace '\s.*$', '' -replace '\\.*$','' | out-file "$savextracted" -encoding ascii
But until now, the extracted & saved result has been fault, never wanted strings.
By PS debugging, it seems the regular expressions in the last line make troubles and variable $exkey does so in replace quotation. But I don't know how to fix this. What shall I do?
If you're looking to capture lines that have your match, here's a snippet that solves that problem:
Function Get-Matches
{
Param(
[Parameter(Mandatory,Position=0)]
[String] $Path,
[Parameter(Mandatory,Position=1)]
[String] $Regex
)
@(Get-Content -Path $Path) -match $Regex
}
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