powershell - Iterate & Search for a string in child items -

i trying build powershell script iterates through list of files , searches , removes match, not having luck, here script

$path = "d:\test\" $filter =  "*.txt" $files = get-childitem -path $path -filter $filter  foreach ($item in $files) {     $search = get-content -path $path$item     $search| select-string -pattern "t|" } 

at moment script returning whole content of file , not select string.

basically each file in folder have trailer record @ end i.e. t|1410 need iterate through files , delete last line, of these files 200mb+ can guide me please.

i've edited script , using following method.

$path = "d:\test\" $filter =  "*.txt" $files = get-childitem -path $path -filter $filter  foreach ($item in $files)  {             $search = get-content $path$item             ($search)| foreach-object { $_ -replace 't\|[0-9]*', '' } | set-content $path$item } 

i using powershell v.2

however, adding new empty line end of file leaving replace empty, how can avoid starting search bottom

-pattern "t|" 

that pattern matches "t" or nothing. there nothing between every pair of characters in string. avoid usual regular expression handling of | alternates separator, use backslash match literal |:

-pattern "t\|" 

alternately, use select-string's -simplematch switch stop argument -pattern being treated regular expression.