PowerShell: return error exit code if not match a string

Question

I found that

$(Invoke-Expression hostname) -eq 'mycomputername'

Whether it is matched or not, the exitcode must be 0 this behavior is different from linux ,i.e, if not match error code exit 1

Is there any short command in PowerShell that can return error exit code if doesn't match the string?

Answer 1

In an script you can change exit code using exit keyword.

A normal termination will set the exitcode to 0

An uncaught THROW will set the exitcode to 1

The EXIT statement will stop the process and set the exitcode to whatever is specified.

In your case I'ld do something like this

if ( $(hostname) -eq 'mycomputername')
{
  exit 0
}
else
{
  exit 1
}