bash升級前,請勿確認下當前mac's bash version。
[lookback@LookBack-MBP ~]$ /bin/bash --version
GNU bash, version 3.2.57(1)-release (x86_64-apple-darwin17)
Copyright (C) 2007 Free Software Foundation, Inc.
[lookback@LookBack-MBP ~]$
# 安裝brew
[lookback@LookBack-MBP ~]$ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
# 安裝bash
[lookback@LookBack-MBP ~]$ brew install bash
#替換bash
[lookback@LookBack-MBP ~]$ sudo mv /bin/bash /bin/bash.origin
[lookback@LookBack-MBP ~]$ sudo ln -s /usr/local/opt/bash/bin/bash /bin/bash
# 由於本mac版本下的sh並不是直接鏈接bash,而是bash的一個文件拷貝。因此,還要替換默認的sh指向的命令爲bash,如下:
[lookback@LookBack-MBP ~]$ sudo mv /bin/sh /bin/sh.origin
[lookback@LookBack-MBP ~]$ sudo ln -s /usr/local/opt/bash/bin/bash /bin/sh
2. 驗證 通過bash和sh命令查看版本:
[lookback@LookBack-MBP ~]$ bash --version
GNU bash,版本 4.4.23(1)-release (x86_64-apple-darwin17.5.0)
Copyright (C) 2016 Free Software Foundation, Inc.
許可證 GPLv3+: GNU GPL 許可證第三版或者更新版本 <http://gnu.org/licenses/gpl.html>