使用 PowerShell 脚本查找以分钟为单位的时差

Question

I am trying to find the time difference between the last updated time and current time for a file. How do I extract TotalMinutes data from the output?

$Date = Get-Date
$Files = gci "C:\Users\ABCD\Documents\command.txt"
ForEach ($File in $Files){
    $FileDate = $File.LastWriteTime
}
$DURATION=$Date-$FileDate
Echo $DURATION

Output is coming as below
Days              : 0
Hours             : 2
Minutes           : 21
Seconds           : 37
Milliseconds      : 311
Ticks             : 84973115857
TotalDays         : 0.0983485137233796
TotalHours        : 2.36036432936111
TotalMinutes      : 141.621859761667
TotalSeconds      : 8497.3115857
TotalMilliseconds : 8497311.5857

Answer 1

You will not need a loop, after getting a single file:

$Files = gci "C:\Users\ABCD\Documents\command.txt"
ForEach ($File in $Files){
    $FileDate = $File.LastWriteTime
}

In this case, $Files might as well be $File , making the loop completely redundant:

$File = gci "C:\Users\ABCD\Documents\command.txt"
$FileDate = $File.LastWriteTime

In the exact same way you extracted LastWriteTime , you can get TotalMinutes :

$Date = Get-Date
$DURATION = $Date - $FileDate
$DURATION.TotalMinutes

Answer 2

Here is a complete answer:

$Date = Get-Date
$Files = gci "C:\Users\ABCD\Documents\command.txt"
ForEach ($File in $Files){
    $FileDate = $File.LastWriteTime
}
$DURATION=$Date-$FileDate
Write-Host "$($DURATION.TotalMinutes)"

Answer 3

$StartDate=(GET-DATE)
#wait a few seconds
$EndDate=(GET-DATE)
$diff = NEW-TIMESPAN -Start $StartDate -End $EndDate
Write-Output "Time difference is: $diff"
$diff
#to see minutes only
$diff.Minutes
#or seconds
$diff.Seconds

Answer 4

您可以使用以下命令来获取 TotalMinutes

$mins = $DURATION.TotalMinutes

Answer 5

Assuming the file exists, here's a one-liner:

((Get-Date) - (Get-ChildItem 'C:\Users\ABCD\Documents\command.txt').LastWriteTime).TotalMinutes

You can either let it echo to the screen as is, or you can assign it to a variable if you want to retain it.