How to create a String.Contains expression in a trigger?

[saibuster]

Hi,

So I have a trigger expression that looks something like: Expression: {Test template:system.run[c:\test.exe].strlen()}>0
This trigger works if any string is returned from executing test.exe but I am looking for a way to trigger only if a specific string is returned, something similar to String.Contains("text I am after"); function in c#.
Any examples would be highly appreciated

[saibuster]

Another note - I tried ({Test template:system.run[c:\test.exe].regexp("Text to look for")}#0) as suggested in the documentation but I got the following error message:

Cannot update trigger
Details

• Incorrect trigger expression. Check expression part starting from "}#0)".

[saibuster]

I found the solution if anyone ever encounters the same issue:

{Test template:system.run[c:\test.exe].regexp("Text to look for")}=1