Your terminal never felt this good before.
1. 查看已有终端
> cat /etc/shells
/bin/sh
/bin/bash
/sbin/nologin
/usr/bin/sh
/usr/bin/bash
/usr/sbin/nologin
/bin/tcsh
/bin/csh
/usr/bin/tmux
> chsh -l
/bin/sh
/bin/bash
/sbin/nologin
/usr/bin/sh
/usr/bin/bash
/usr/sbin/nologin
/bin/tcsh
/bin/csh
/usr/bin/tmux
> echo $SHELL
/bin/bash
可以看到 CentOS 7 的默认终端是/bin/bash。
2. 安装 zsh
> yum info zsh
Available Packages
Name : zsh
Arch : x86_64
Version : 5.0.2
Release : 31.el7
Size : 2.4 M
Repo : base/7/x86_64
Summary : Powerful interactive shell
URL : http://zsh.sourceforge.net/
License : MIT
Description : The zsh shell is a command interpreter usable as an interactive
: login shell and as a shell script command processor. Zsh resembles
: the ksh shell (the Korn shell), but includes many enhancements.
: Zsh supports command line editing, built-in spelling correction,
: programmable command completion, shell functions (with
: autoloading), a history mechanism, and more.
> yum install -y zsh
> cat /etc/shells
/bin/sh
/bin/bash
/sbin/nologin
/usr/bin/sh
/usr/bin/bash
/usr/sbin/nologin
/bin/tcsh
/bin/csh
/usr/bin/tmux
/bin/zsh
3. 切换默认 Shell 为 zsh
请在
root用户下切换 Shell
> chsh -s /bin/zsh
Changing shell for root.
Shell changed.
提示终端切换完成，但还需重启方能生效。之后继续安装oh-my-zsh。
4. 安装 oh-my-zsh
Via curl
sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"
Via wget
sh -c "$(wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)"
提示oh-my-zsh安装成功：
__ __
____ / /_ ____ ___ __ __ ____ _____/ /_
/ __ \/ __ \ / __ `__ \/ / / / /_ / / ___/ __ \
/ /_/ / / / / / / / / / / /_/ / / /_(__ ) / / /
\____/_/ /_/ /_/ /_/ /_/\__, / /___/____/_/ /_/
/____/ ....is now installed!
Please look over the ~/.zshrc file to select plugins, themes, and options.
p.s. Follow us at https://twitter.com/ohmyzsh.
p.p.s. Get stickers, shirts, and coffee mugs at https://shop.planetargon.com/collections/oh-my-zsh.
5. 修改主题及配置
oh-my-zsh 的默认主题是robbyrussell，可以在~/.zshrc中修改ZSH_THEME主题字段，主题清单参见 Themes | oh-my-zsh。
# Set name of the theme to load --- if set to "random", it will
# load a random theme each time oh-my-zsh is loaded, in which case,
# to know which specific one was loaded, run: echo $RANDOM_THEME
# See https://github.com/robbyrussell/oh-my-zsh/wiki/Themes
ZSH_THEME="agnoster"
另外还可以在~/.zshrc中设置PATH路径或添加alias命令别名，使用方法与~/.bashrc相同：
> vim ~/.zshrc
# If you come from bash you might have to change your $PATH.
# export PATH=$HOME/bin:/usr/local/bin:$PATH
export GOLANDPATH=$HOME/GoLand-2018.3.5/
export GOPATH=$HOME/go
export PATH="$PATH:$GOPATH/bin:$GOLANDPATH:bin"
# Path to your oh-my-zsh installation.
export ZSH="/root/.oh-my-zsh"
# Set name of the theme to load --- if set to "random", it will
# load a random theme each time oh-my-zsh is loaded, in which case,
ZSH_THEME="agnoster"
...
...
# Set list of themes to pick from when loading at random
# If set to an empty array, this variable will have no effect.
# ZSH_THEME_RANDOM_CANDIDATES=( "robbyrussell" "agnoster" )
# Set personal aliases, overriding those provided by oh-my-zsh libs,
# plugins, and themes. Aliases can be placed here, though oh-my-zsh
# users are encouraged to define aliases within the ZSH_CUSTOM folder.
# For a full list of active aliases, run `alias`.
#
# Example aliases
# alias zshconfig="mate ~/.zshrc"
# alias ohmyzsh="mate ~/.oh-my-zsh"
alias rm='rm -i'
alias cp='cp -i'
alias mv='mv -i'
alias vi='vim'
alias pc='proxychains4'
保存之后更新配置：
source ~/.zshrc
例如下图所示即为agnoster-zsh-theme主题效果：
agnoster-zsh-theme
注意：在 CentOS 7 下使用agnoster主题，部分符号在终端无法正常显示，还需安装 Powerline fonts 字体：
# clone
git clone https://github.com/powerline/fonts.git --depth=1
# install
cd fonts
./install.sh
# clean-up a bit
cd ..
rm -rf fonts
之后在终端输入以下命令测试Powerline font字体是否成功安装：
echo "\ue0b0 \u00b1 \ue0a0 \u27a6 \u2718 \u26a1 \u2699"
字体安装成功后符号可正常显示
6. zsh 小技巧
输入d命令，即可查看在这个终端会话中访问过的目录，输入目录对应的序号即可跳转：
~ > d
0 ~
1 ~/.oh-my-zsh/plugins/git
2 /opt/google
3 ~/.oh-my-zsh
4 ~/.oh-my-zsh/plugins
5 ~/GolandProjects/go-rest-api-server
6 ~/GolandProjects
~ > 6
~/GolandProjects
~/GolandProjects >
另外还可以忽略cd命令，输入..、...或目录名都可以跳转。
