![-Bash: !": Event Not Found [Closed]](https://docuprint.cloud68.co/uploads/bash-event-not-found-closed_1200.jpg)
How do I fix this bash terminal? Why would the '!' suddenly be a problem and the need for quotation marks are no longer seem to be necessary to produce the string. Did I break something? If so how do I reset it to factory setting? I'm sure it was working properly yesterday
Last login: Sat Oct 18 15:30:48 on ttys001
Michels-MacBook-Pro:~ michelfrechette$ echo "hello, world!"
-bash: !": event not found
Michels-MacBook-Pro:~ michelfrechette$ echo hello, world
hello, world
Michels-MacBook-Pro:~ michelfrechette$ echo "hello, world"
hello, world
-bash: !": event not found, this is curious.
1 Answer
Running
set +H
will turn off the offending (history expansion) functionality in its entirety. Putting this in your ~/.bashrc is a common practice.
Alternately, you can modify the histchars variable to change the characters used to trigger history expansion (by default, !), quick substitution (by default, ^) and comments (by default, #).
As yet another option, using single- rather than double-quotes avoids triggering the shell feature in question.
