I am unable to install oh-my-bash on my Mac Book Pro 2018 running Mac OS X 10.14.2:
REDACTED:~ REDACTED$ brew info bash
bash: stable 5.0.0 (bottled), HEAD
Bourne-Again SHell, a UNIX command interpreter
https://www.gnu.org/software/bash/
/usr/local/Cellar/bash/5.0.0 (150 files, 9.4MB) *
Poured from bottle on 2019-01-17 at 13:29:42
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/bash.rb
==> Options
--HEAD
Install HEAD version
==> Caveats
In order to use this build of bash as your login shell,
it must be added to /etc/shells.
==> Analytics
install: 26,405 (30 days), 51,296 (90 days), 204,628 (365 days)
install_on_request: 20,456 (30 days), 40,924 (90 days), 158,502 (365 days)
build_error: 0 (30 days)
REDACTED:~ REDACTED$ which bash
/usr/local/bin/bash
REDACTED:~ REDACTED$ bash --version
GNU bash, version 5.0.0(1)-release (x86_64-apple-darwin18.2.0)
Copyright (C) 2019 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
REDACTED:~ REDACTED$ sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmybash/oh-my-bash/master/tools/install.sh)"
Error: Bash 4 required for Oh My Bash.
Error: Upgrade Bash and try again.