regex-negation – IT Nursery

Regex – Does not contain certain Characters

May 11, 2022 by IT Nursery

I need a regex to match if anywhere in a sentence there is NOT either < or >. If either < or > are in the string then it must return false. I had a partial success with this but only if my < > are at the beginning or end: (?!<|>).*$ I am using … Read more

Regular expression to match a line that doesn’t contain a word

April 9, 2022 by IT Nursery

I know it’s possible to match a word and then reverse the matches using other tools (e.g. grep -v). However, is it possible to match lines that do not contain a specific word, e.g. hede, using a regular expression? Input: hoho hihi haha hede Code: grep “<Regex for ‘doesn’t contain hede’>” input Desired output: hoho … Read more