Unexpected output with grep '^no\(fork\|group\)' ------------------------------------------------ Key: WFCORE-3556 URL: https://issues.jboss.org/browse/WFCORE-3556 Project: WildFly Core Issue Type: Bug Components: CLI Reporter: Katerina Novotna Assignee: Jean-Francois Denise Fix For: 5.0.0.Alpha2 *Description of problem:* Aesh grep command doesn't return expected result. The same command with bash grep gives 'nofork' result. *Actual results:* [standalone@embedded /] echo nofork | grep '^no\(fork\|group\)' [standalone@embedded /] *Expected results:* [standalone@embedded /] echo nofork | grep '^no\(fork\|group\)' [standalone@embedded /] nofork