I have some text file which has some occurrences of the string "bad" in it. I want to replace each occurrence of "bad" with good1, good2, good3, ,, good100 and so on.
I am trying this but it is replacing all occurrences with the last number, good100
$raw = $(gc raw.txt)
for($i = 0; $i -le 100; $i++)
{
$raw | %{$_ -replace "bad", "good$($i)" } > output.txt
}
How to accomplish this?
Try this:
$i = 1
$raw = $(gc raw.txt)
$new = $raw.split(" ") | % { $_ -replace "bad" , "good($i)" ; if ($_ -eq "bad" ) {$i++} }
$new -join " " | out-file output.txt
This is good if the raw.txt is single line and contains the word "bad" always separed by one space " " like this: alfa bad beta bad gamma bad (and so on...)
Edit after comment:
for multiline txt:
$i = 1
$new = @()
$raw = $(gc raw.txt)
for( $c = 0 ; $c -lt $raw.length ; $c++ )
{
$l = $raw[$c].split(" ") | % { $_ -replace "bad" , "good($i)" ; if ($_ -eq "bad" ) {$i++} }
$l = $l -join " "
$new += $l
}
$new | out-file output.txt
split() better?
Get-Content. You'll need to use foreach.[string] (gc raw.txt).For such things, I generally use Regex::Replace overload that takes a Matchevaluator:
$evaluator ={
$count++
"good$count"
}
gc raw.txt | %{ [Regex]::Replace($_,"bad",$evaluator) }
The evaluator also gets the matched groups as argument, so you can do some advanced replaces with it.
Here's another way, replacing just one match at a time:
$raw = gc raw.txt | out-string
$occurrences=[regex]::matches($raw,'bad')
$regex = [regex]'bad'
for($i=0; $i -le $occurrences.count; $i++)
{
$raw = $regex.replace($raw,{"good$i"},1)
}
$raw
