Kubectl_ Easy to use command line tool: Oh my Zsh_ Tips and tricks

Zsh  Tips and tricks

stay  unix/linux  In the operating system environment , We will often discuss  shell、 Terminal and command line interface .Bash  Probably the most famous  shell, But in  Mac  In computer ,Zsh  Probably the most popular  shell  了 .

What is?  Zsh？

Zsh  Also known as  z Shell, It expands  Bourne Shell (sh) The function of , Provides updated features and more support for plug-ins and themes . from 2019 Year of  MacOS Catalina  Start ,Zsh  Become  Mac  The default login and interaction in the computer  shell.

install  Zsh

install  

Oh My Zsh

  Prerequisite ： Must be installed  

zsh

Mac

stay  Mac  On the computer , You can use  Homebrew  To install  Zsh.

brew install zsh

Linux(Ubuntu)

# 1.  install zsh
sudo apt-get install zsh
# 2.  Confirm whether the installation is successful
zsh --version
# 3.  Set up zsh As the default shell
sudo chsh -s (which zsh)
# 4.  Log out and log back in


Linux(Centos)

# 1.  install zsh
sudo yum install zsh
# 2.  Confirm whether the installation is successful
zsh --version
# 3.  Set up zsh As the default shell
sudo chsh -s (which zsh)
# 4.  Log out and log back in

#  Check the current system  shell
cat /etc/shells 


adopt yum Installed zsh The version is 5.0.2 Of , And many topics need to use a higher version zsh, If you need a higher version, you can use the source code to install

First uninstall zsh

yum remove zsh


Then compile

sudo yum update -y
sudo yum install -y git make ncurses-devel gcc autoconf man
git clone -b zsh-5.7.1 https://github.com/zsh-users/zsh.git /tmp/zsh
cd /tmp/zsh
./Util/preconfig
./configure
sudo make -j 20 install.bin install.modules install.fns


Set to default shell

command -v zsh | sudo tee -a /etc/shells
sudo chsh -s /usr/local/bin/zsh


When installed  Zsh  after , You can also install the most popular  Zsh  plug-in unit ,

oh-my-Zsh

, This plug-in has many built-in plug-ins and themes , Use the following installation script :

sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"


Manual installation

1.1  Uninstall lower version

#  Uninstall the current version
 sudo yum remove zsh


1.2  Download the source code

• Source code ：https://zsh.sourceforge.io/Arc/source.html

#  download
wget https://sourceforge.net/projects/zsh/files/zsh/5.8/zsh-5.8.tar.xz/download

#  decompression
tar xvf zsh-5.8.tar.xz


1.3  Compilation and installation

#  Install the compiler
yum install gcc perl-ExtUtils-MakeMaker
yum install ncurses-devel

#  Enter the source directory
cd zsh-5.8

#  Perform configuration
#  Default installed in ：/usr/local/bin/zsh
./configure 

#  Compile and install
make && make install

#  Add information
 vim /etc/shells
#  Add in the last line ：/usr/local/bin/zsh


1.4  The verification results

#  Switch shell
chsh -s /usr/local/bin/zsh

#  View version information
 zsh --version
# zsh 5.8 (x86_64-pc-linux-gnu)


Zsh Basic commands

6 A little-known  Zsh  Tips and tricks

• take
    command

• The command is  mkdir  and  cd  A combination of two commands . You can also generate intermediate directories as needed .

• Specify the command to view history

• Enter the specified command , Press the up arrow again , The history starting with this command can be iterated

• zmv

• use  zmv  Rename a large number of files . First , function  
  autoload zmv
    To install  
  zmv
  . Then execute the following command ：

 zmv '(*).(jpg|jpeg)' 'demo-1.2'


• zcalc

• Open the calculator on the command line , First , function  
  autoload zcalc
    To install  
  zcalc
   . Then you can execute  
  zcalc
    command .

• Ctrl-q

• When you enter a long command , When you find that you need to execute a command before it , You can press  
  Ctrl-q
    Temporarily store the current command , Then enter another command , When the execution of the other command ends , The temporary commands will be automatically refilled .

• ctrl-x-e

• When you enter a long command , When you find an input error in the middle of the command , Can press  
  ctrl-x-e
    Copy the command to the editor for editing , After editing , Save to exit .

Easy to use plug-ins

To enable the zsh Plug in for ,  stay ~/.zshrc  Set in :

plugins=(git autojump last-working-dir tmux tmuxinator web-search fancy-ctrl-z themes)


• autojump

• last-working-dir

• tmux

• tmuxinator

• web-search

• fancy-ctrl-z

install oh-my-zsh

• Can pass  curl  or  wget  Two ways to install , Install... With one command .

curl  install

GitHub

:

sh -c "$(curl -fsSL https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"


Gitee (  Domestic mirror  )

sh -c "$(curl -fsSL https://gitee.com/mirrors/oh-my-zsh/raw/master/tools/install.sh)"


wget  install

GitHub

:

sh -c "$(wget https://raw.github.com/robbyrussell/oh-my-zsh/master/tools/install.sh -O -)"


Gitee (  Domestic mirror  )

sh -c "$(wget -O- https://gitee.com/pocmon/mirrors/raw/master/tools/install.sh)"



[[email protected]]/fly/k8s/shell/ohmyzsh# ./install.sh 
Cloning Oh My Zsh...
remote: Enumerating objects: 1280, done.
remote: Counting objects: 100% (1280/1280), done.
remote: Compressing objects: 100% (1236/1236), done.
remote: Total 1280 (delta 24), reused 1230 (delta 24), pack-reused 0
Receiving objects: 100% (1280/1280), 1.06 MiB | 1.23 MiB/s, done.
Resolving deltas: 100% (24/24), done.
From https://github.com/ohmyzsh/ohmyzsh
 * [new branch] master -> origin/master
Branch master set up to track remote branch master from origin.
Already on 'master'
/fly/k8s/shell/ohmyzsh

Looking for an existing zsh config...
Found ~/.zshrc. Backing up to /root/.zshrc.pre-oh-my-zsh
Using the Oh My Zsh template file and adding it to ~/.zshrc.

 __ __ 
 ____ / /_ ____ ___ __ __ ____ _____/ /_ 
 / __ \/ __ \ / __ `__ \/ / / / /_ / / ___/ __ \ 
/ /_/ / / / / / / / / / / /_/ / / /_(__ ) / / / 
\____/_/ /_/ /_/ /_/ /_/\__, / /___/____/_/ /_/ 
 /____/ ....is now installed!


Before you scream Oh My Zsh! look over the `.zshrc` file to select plugins, themes, and options.

• Follow us on Twitter: https://twitter.com/ohmyzsh
• Join our Discord community: https://discord.gg/ohmyzsh
• Get stickers, t-shirts, coffee mugs and more: https://shop.planetargon.com/collections/oh-my-zsh


upgrade oh-my-zsh

To upgrade oh-my-zsh,  The input terminal :

Get updates

By default , The system will prompt you every  2  Check for updates once a week .

stay  Oh My Zsh  Before loading

~/.zshrc

, You can choose another update mode by adding a line to the file ：

• Automatic update without confirmation ：

 zstyle ':omz:update' mode auto


• If updates are available , Please provide a reminder every few days ：

 zstyle ':omz:update' mode reminder


• To disable automatic updates completely ：

 zstyle ':omz:update' mode disabled


Be careful ： You can use the following settings to control  Oh My Zsh  Check the frequency of updates ：

# This will check for updates every 7 days
zstyle ':omz:update' frequency 7
# This will check for updates every time you open the terminal (not recommended)
zstyle ':omz:update' frequency 0


Update manually

If you want to update at any time （ Maybe someone just released a new plug-in and you don't want to wait a week ？） You just need to run ：

omz update


uninstall  Oh My Zsh

Oh My Zsh  Not for everyone . We will miss you , But we want to make breaking up easy .

If you want to uninstall

oh-my-zsh

, Just run... From the command line

uninstall_oh_my_zsh

. It will delete and restore your previous

bash

or

zsh

To configure .

Use  Oh My Zsh

plug-in unit

Oh My Zsh  There are a lot of plug-ins for you to use . You can view

plug-in unit

Contents and / or

wiki

To see what is currently available .

To enable the plugin

Once you find one （ Or more ） You want to contact  Oh My Zsh  Plug ins used together , You need to

.zshrc

Enable them in the file . You will be in your

$HOME

Found in the directory  zshrc  file . Open it with your favorite text editor , You will see a place listing all the plug-ins you want to load .

vim ~/.zshrc


for example , This may start to look like this ：

plugins=(
 git
 bundler
 dotenv
 macos
 rake
 rbenv
 ruby
)


Please note that , Plug ins are separated by spaces （ Space 、 tabs 、 New line ...）.

Don't

Use commas between them , Otherwise it will interrupt .

#  Refresh configuration
source ~/.zshrc


The use of plug-in

Each built-in plug-in contains a

README

, Used to record it . This readme file should show the aliases contained in that particular plug-in （ If the plug-in adds any aliases ） And extra good things .

The theme

We will admit it . stay  Oh My Zsh  The early days of the world , We may be a little too happy . We are now tied to more than  150  A theme . Most of them are in  wiki  both

Screenshot

（ We are trying to update this ！）. To have a look at ！

Select topic

Robby  The theme of is the default theme . This is not the most fancy . This is not the simplest . That's right （ For him, ）.

Find the theme to use , You need to edit this

~/.zshrc

file . You will see an environment variable （ All capitals ）, As shown below ：

ZSH_THEME="robbyrussell"


Use different themes , Just change the value to match the name of the desired topic . for example ：

ZSH_THEME="agnoster" # (this is one of the fancy ones)
# see https://github.com/ohmyzsh/ohmyzsh/wiki/Themes#agnoster


Be careful ： Many themes need to be installed

Power line font

or

Nerd fonts

In order to present correctly . Without them , These themes will present

Strange prompt symbol

Open a new terminal window , Your prompt should be as follows ：

If you don't find a theme that suits your needs , Please check out  wiki  understand

more

The theme .

If you feel bored , You can let the computer choose one randomly for you every time you open a new terminal window .

ZSH_THEME="random" # (...please let it be pie... please be some pie..)


If you want to choose a random theme from your favorite theme list ：

ZSH_THEME_RANDOM_CANDIDATES=(
 "robbyrussell"
 "agnoster"
)


If you only know which topics you don't like , They can be similarly added to the ignore list ：

ZSH_THEME_RANDOM_IGNORED=(pygmalion tjkirch_mod)


Abnormal problems

1.  uninstall zsh I can't log in after root Account solution

# Input in the terminal
sudo vim /etc/passwd
# Take the first line
root:x:0:0:root:/root:/bin/zsh
# Change it to
root:x:0:0:root:/root:/bin/bash
#  Put the last line
username:x:1000:1000:username,,,:/home/username:/username/local/bin/zsh
#  Change it to
username:x:1000:1000:username,,,:/home/username:/username/local/bin/bash
#  Save and log in root 了


Reference link ：

zsh

ohmyzsh to update

ohmyzsh Plug in list