&& is notoriously hard to search for on google, but the best I've found is this article which says to use -and.
Unfortunately it doesn't give any more information, and I can't find out what I'm supposed to do with -and (again, a notoriously hard thing to search for)
The context I'm trying to use it in is "execute cmd1, and if successful, execute cmd2", basically this:
csc /t:exe /out:a.exe SomeFile.cs && a.exe
This should be an easy few rep points to someone who knows, thanks!
It depends on the context, but here's an example of "-and" in action:
get-childitem | where-object { $_.Name.StartsWith("f") -and $_.Length -gt 10kb }
So that's getting all the files bigger than 10kb in a directory whose filename starts with "f".
PowerShell has -and and -or logical operators. Are the operators not working the way you expect them to? If so, you can post the expression here.
In CMD, '&&' means "execute command 1, and if it succeeds, execute command 2". I have used it for things like:
build && run_tests
In PowerShell, the closest thing you can do is:
(build) -and (run_tests)
It has the same logic, but the output text from the commands is lost. Maybe it is good enough for you, though.
EDIT
If you're doing this in a script, you will probably be better off separating the statements, like this:
build
if ($?) {
run_tests
}
&& and || were on the list of things to implement (still are) but did not pop up as the next most useful thing to add. The reason is that we have -AND and -OR. If you think it is important, please file a suggestion on Connect and we'll consider it for V3.
Experiment! Enjoy! Engage!
Jeffrey Snover [MSFT] Windows Management Partner Architect Visit the Windows PowerShell Team blog at: http://blogs.msdn.com/PowerShell Visit the Windows PowerShell ScriptCenter at: http://www.microsoft.com/technet/scriptcenter/hubs/msh.mspx
-and -or -lt -gt -le -ge ...
no offense to the powershell team, but were you guys on crack when you decided to use those ridiculous things and not the standard && || < > <= >=.