indexOf not working as expected?

[gokulraj]

How to compare the string with exact match?

myString = "networkgroup@abc.com";

"network@abc.com" also satifying this condtion

Is there a way to find the exact string insted of indexOF()

[gokulraj]

I want to compare everything inside''. but it will be awesome I am able to check one more condition like before '' it contains "Device" string or not

like this

Device 'EVMTMW-WOZ' item not found/n Device 'TMAQW-WOZ' does not exist\n active 'directory' of device 'QASDTYQ-IOK'

[Carlos Candano]

Yes. That can be done. But what I am asking is if you only want the first instance of that format or for all instances in the string you have provided?