Script to change two dates - powershell

Question

I tried changing the start and end date in the content of the file using the PowerShell script but it changes both dates to the same.
$path = "H:\oim\adcbsm007\adcbsm007.txt"
$path = "H:\oim\alps027\alps027.txt"
$word = "2016,01,28"
$replacement = "2016,01,29"
$text = get-content $path
$newText = $text -replace $word,$replacement
$newText > $path
$path = "H:\oim\adcbm007\adcsm007.txt"
$path = "H:\oim\alps027\alps027.txt"
$word = "2016,01,29"
$replacement = "2016,01,30"
$text = get-content $path
$newText = $text -replace $word,$replacement
$newText > $path
The content of the text file is something like this:
http://www.google.com="Global History"&customer=guest&password=guest&STARTTIME=2016,01,30,00,00,00&STOPTIME=2016,01,30,00,00,00&POINTSEVERY=15 min&GRAPHTYPE=excel

Answer 1

You need to replace the end date before the start date, otherwise the start date will be the same as the end date after the first replacement. Therefore the second replacement will change both start and end date to the new end date value. Also, if you want to do the replacement in several files you can't put the paths in the same variable, lest the second path replaces the first one. Use a list and a foreach loop (or something similar) instead.
$paths = 'H:\oim\adcbsm007\adcbsm007.txt', 'H:\oim\alps027\alps027.txt'
$startOld = '2016,01,28'
$startNew = '2016,01,29'
$endOld = '2016,01,29' # == $startNew
$endNew = '2016,01,30'
foreach ($p in $paths) {
(Get-Content $p) -replace $endOld, $endNew -replace $startOld, $startNew |
Set-Content $p
}