How to execute a command using bash if a piece of text is successfully found in the def. file and vice versa?

Question

linux

Here, for example, I enter in the console: If it finds everything with the word meta, it will execute echo with the word successfully, if it does not find it, it will not execute. But how to make that in case of an unsuccessful search, force another command to be executed? For example echo "unsuccessful"? And how to organize all this in one request?
grep meta /home/1.html && echo успешно

Answer 1

grep meta /home/1.html || echo Failed
One could even
concatenate grep meta /home/1.html && echo success || echo Failed