The Not Equal Tilde in bash
bash, equals, shell, tilde
Solution
There is no opposing operator in bash up to version 4.3 (current at the time of this post).
`[[ ! str1 =~ str2 ]]` is the way to go.
For such questions, you should use `man` instead of your favourite search engine. The man page of the tool involved -- bash, in this case -- is authoritative, the 'web is hearsay (unless, of course, it led you to the man page ;-) ).
Problem
Like presented in the title, What's the opposite of `"=~"` operator? I really googled for that and I fund just the following solution: `[[ ! $str1 =~ $str2 ]]` Is there any operator that verify the opposite of `"=~"` operator? Thanks.