On *nix system, we can use the command “time” to measure a command execution time. How do I do this on Windows? Fortunately there is a Powershell command “Measure-Command” for this.

PS C:> Measure-Command {certutil -hashfile .\tmuninst.ini | Out-Host}
SHA1 hash of file .\tmuninst.ini:
7c 85 c2 94 73 8d 25 3e 12 8b eb 7a 1d a8 e7 b7 78 ec ee 8f
CertUtil: -hashfile command completed successfully.

Days : 0
Hours : 0
Minutes : 0
Seconds : 0
Milliseconds : 37
Ticks : 375544
TotalDays : 4.34657407407407E-07
TotalHours : 1.04317777777778E-05
TotalMinutes : 0.000625906666666667
TotalSeconds : 0.0375544
TotalMilliseconds : 37.5544

The Out-Host option will give the output from the actual command as well. Here in the example the output from the command certutil shows the SHA1 hash code of the file. Without it, the output from certutil is omitted.

To get a different hash code, use

Measure-Command {certutil -hashfile .\tmuninst.ini [HashAlgorithm] | Out-Host}

For example — SHA256:

Measure-Command {certutil -hashfile .\tmuninst.ini sha256 | Out-Host}

• Windows