This case shows different exit codes of PowerShell.exe when it is invoked with similar commands.
If the command 'Hello'; Write-Error Oops is invoked by PowerShell.exe then
its exit code is 1. If the same command is a script and the script is invoked
then the exit code is 0. If the script is dot-sourced, i.e. as if the command
is in the command line, then the exit code is still 0.
If the command Write-Error Oops; 'Hello' (swapped statements) is invoked then
the exit code is 0. This fact and the other tests give the idea that the exit
code of a command without terminating errors depends on the last statement in
the command line.
Scripts
- Script1.ps1 contains the command with an error.
- Test-1-command-and-script.ps1 invokes tests:
'Hello'; Write-Error Oops, exit code is 1- invokes it as a script, exit code is 0
- dot-sources the script, exit code is 0
Write-Error Oops; 'Hello', exit code is 0