关于zsh的优点，请翻阅该链接。
为什么说zsh是shell中的极品？知乎

安装

安装zsh

  1. $ sudo apt-get install zsh

安装 oh my zsh 插件

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

但是由于GIT的缘故，可能会出现下载失败。
或者是直接到官网中提供的git仓库里下载。
oh my zsh仓库
文章末尾附带了安装插件的脚本，直接复制到系统中，新建一个install.sh，粘贴进去后运行即可。

配置

oh my zsh的配置文件在 ~/.zshrc 文件里。

插件

zsh-syntax-highlighting

语法高亮插件。当输入的指令是正确的时，输入的内容会变成绿色，否则显示红色。
image.png
image.png
执行以下指令下载安装。

  1. git clone https://github.com/zsh-users/zsh-syntax-highlighting.git ${ZSH_CUSTOM:-~/.oh-my-zsh/custom}/plugins/zsh-syntax-highlighting

下载成功后，打开配置文件。

  1. $ sudo vim ~/.zshrc

找到 plugins=，这里都是生成的插件配置，在括号里添加 zsh-syntax-highlighting。
保存退出，source后生效。

  1. $source ~/.zshrc

zsh-autosuggestions

插件可以记录历史输入过的指令，然后给出建议。
image.png
执行以下指令下载安装。

  1. git clone git://github.com/zsh-users/zsh-autosuggestions $ZSH_CUSTOM/plugins/zsh-autosuggestions

下载成功后，打开配置文件。

  1. $ sudo vim ~/.zshrc

找到 plugins=，这里都是生成的插件配置，在括号里添加 zsh-autosuggestions。
保存退出，source后生效。

  1. $source ~/.zshrc

主题

主题的字段为

  1. # ZSH_THEME="robbyrussell"        /* 默认主题 */
  2. # ZSH_THEME="agnoster"
  3. ZSH_THEME="ys"

如上所示，使用的主题为 robbyrussell，修改引号内的内容，指定相应的主题的名称，即可修改zsh的主题。只能有一个主题，不用的主题需注释掉。
保存退出，source后生效。

  1. $source ~/.zshrc

install.sh

  1. #!/bin/sh
  2. # This script should be run via curl:
  3. #   sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
  4. # or wget:
  5. #   sh -c "$(wget -qO- https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
  6. #
  7. # As an alternative, you can first download the install script and run it afterwards:
  8. #   wget https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh
  9. #   sh install.sh
  10. #
  11. # You can tweak the install behavior by setting variables when running the script. For
  12. # example, to change the path to the Oh My Zsh repository:
  13. #   ZSH=~/.zsh sh install.sh
  14. #
  15. # Respects the following environment variables:
  16. #   ZSH     - path to the Oh My Zsh repository folder (default: $HOME/.oh-my-zsh)
  17. #   REPO    - name of the GitHub repo to install from (default: ohmyzsh/ohmyzsh)
  18. #   REMOTE  - full remote URL of the git repo to install (default: GitHub via HTTPS)
  19. #   BRANCH  - branch to check out immediately after install (default: master)
  20. #
  21. # Other options:
  22. #   CHSH       - 'no' means the installer will not change the default shell (default: yes)
  23. #   RUNZSH     - 'no' means the installer will not run zsh after the install (default: yes)
  24. #   KEEP_ZSHRC - 'yes' means the installer will not replace an existing .zshrc (default: no)
  25. #
  26. # You can also pass some arguments to the install script to set some these options:
  27. #   --skip-chsh: has the same behavior as setting CHSH to 'no'
  28. #   --unattended: sets both CHSH and RUNZSH to 'no'
  29. #   --keep-zshrc: sets KEEP_ZSHRC to 'yes'
  30. # For example:
  31. #   sh install.sh --unattended
  32. #
  33. set -e
  35. # Default settings
  36. ZSH=${ZSH:-~/.oh-my-zsh}
  37. REPO=${REPO:-ohmyzsh/ohmyzsh}
  38. REMOTE=${REMOTE:-https://github.com/${REPO}.git}
  39. BRANCH=${BRANCH:-master}
  41. # Other options
  42. CHSH=${CHSH:-yes}
  43. RUNZSH=${RUNZSH:-yes}
  44. KEEP_ZSHRC=${KEEP_ZSHRC:-no}
  47. command_exists() {
  48.     command -v "$@" >/dev/null 2>&1
  49. }
  51. error() {
  52.     echo ${RED}"Error: $@"${RESET} >&2
  53. }
  55. setup_color() {
  56.     # Only use colors if connected to a terminal
  57.     if [ -t 1 ]; then
  58.         RED=$(printf '\033[31m')
  59.         GREEN=$(printf '\033[32m')
  60.         YELLOW=$(printf '\033[33m')
  61.         BLUE=$(printf '\033[34m')
  62.         BOLD=$(printf '\033[1m')
  63.         RESET=$(printf '\033[m')
  64.     else
  65.         RED=""
  66.         GREEN=""
  67.         YELLOW=""
  68.         BLUE=""
  69.         BOLD=""
  70.         RESET=""
  71.     fi
  72. }
  74. setup_ohmyzsh() {
  75.     # Prevent the cloned repository from having insecure permissions. Failing to do
  76.     # so causes compinit() calls to fail with "command not found: compdef" errors
  77.     # for users with insecure umasks (e.g., "002", allowing group writability). Note
  78.     # that this will be ignored under Cygwin by default, as Windows ACLs take
  79.     # precedence over umasks except for filesystems mounted with option "noacl".
  80.     umask g-w,o-w
  82.     echo "${BLUE}Cloning Oh My Zsh...${RESET}"
  84.     command_exists git || {
  85.         error "git is not installed"
  86.         exit 1
  87.     }
  89.     if [ "$OSTYPE" = cygwin ] && git --version | grep -q msysgit; then
  90.         error "Windows/MSYS Git is not supported on Cygwin"
  91.         error "Make sure the Cygwin git package is installed and is first on the \$PATH"
  92.         exit 1
  93.     fi
  95.     git clone -c core.eol=lf -c core.autocrlf=false \
  96.         -c fsck.zeroPaddedFilemode=ignore \
  97.         -c fetch.fsck.zeroPaddedFilemode=ignore \
  98.         -c receive.fsck.zeroPaddedFilemode=ignore \
  99.         --depth=1 --branch "$BRANCH" "$REMOTE" "$ZSH" || {
  100.         error "git clone of oh-my-zsh repo failed"
  101.         exit 1
  102.     }
  104.     echo
  105. }
  107. setup_zshrc() {
  108.     # Keep most recent old .zshrc at .zshrc.pre-oh-my-zsh, and older ones
  109.     # with datestamp of installation that moved them aside, so we never actually
  110.     # destroy a user's original zshrc
  111.     echo "${BLUE}Looking for an existing zsh config...${RESET}"
  113.     # Must use this exact name so uninstall.sh can find it
  114.     OLD_ZSHRC=~/.zshrc.pre-oh-my-zsh
  115.     if [ -f ~/.zshrc ] || [ -h ~/.zshrc ]; then
  116.         # Skip this if the user doesn't want to replace an existing .zshrc
  117.         if [ $KEEP_ZSHRC = yes ]; then
  118.             echo "${YELLOW}Found ~/.zshrc.${RESET} ${GREEN}Keeping...${RESET}"
  119.             return
  120.         fi
  121.         if [ -e "$OLD_ZSHRC" ]; then
  122.             OLD_OLD_ZSHRC="${OLD_ZSHRC}-$(date +%Y-%m-%d_%H-%M-%S)"
  123.             if [ -e "$OLD_OLD_ZSHRC" ]; then
  124.                 error "$OLD_OLD_ZSHRC exists. Can't back up ${OLD_ZSHRC}"
  125.                 error "re-run the installer again in a couple of seconds"
  126.                 exit 1
  127.             fi
  128.             mv "$OLD_ZSHRC" "${OLD_OLD_ZSHRC}"
  130.             echo "${YELLOW}Found old ~/.zshrc.pre-oh-my-zsh." \
  131.                 "${GREEN}Backing up to ${OLD_OLD_ZSHRC}${RESET}"
  132.         fi
  133.         echo "${YELLOW}Found ~/.zshrc.${RESET} ${GREEN}Backing up to ${OLD_ZSHRC}${RESET}"
  134.         mv ~/.zshrc "$OLD_ZSHRC"
  135.     fi
  137.     echo "${GREEN}Using the Oh My Zsh template file and adding it to ~/.zshrc.${RESET}"
  139.     sed "/^export ZSH=/ c\\
  140. export ZSH=\"$ZSH\"
  141. " "$ZSH/templates/zshrc.zsh-template" > ~/.zshrc-omztemp
  142.     mv -f ~/.zshrc-omztemp ~/.zshrc
  144.     echo
  145. }
  147. setup_shell() {
  148.     # Skip setup if the user wants or stdin is closed (not running interactively).
  149.     if [ $CHSH = no ]; then
  150.         return
  151.     fi
  153.     # If this user's login shell is already "zsh", do not attempt to switch.
  154.     if [ "$(basename "$SHELL")" = "zsh" ]; then
  155.         return
  156.     fi
  158.     # If this platform doesn't provide a "chsh" command, bail out.
  159.     if ! command_exists chsh; then
  160.         cat <<-EOF
  161.             I can't change your shell automatically because this system does not have chsh.
  162.             ${BLUE}Please manually change your default shell to zsh${RESET}
  163.         EOF
  164.         return
  165.     fi
  167.     echo "${BLUE}Time to change your default shell to zsh:${RESET}"
  169.     # Prompt for user choice on changing the default login shell
  170.     printf "${YELLOW}Do you want to change your default shell to zsh? [Y/n]${RESET} "
  171.     read opt
  172.     case $opt in
  173.         y*|Y*|"") echo "Changing the shell..." ;;
  174.         n*|N*) echo "Shell change skipped."; return ;;
  175.         *) echo "Invalid choice. Shell change skipped."; return ;;
  176.     esac
  178.     # Check if we're running on Termux
  179.     case "$PREFIX" in
  180.         *com.termux*) termux=true; zsh=zsh ;;
  181.         *) termux=false ;;
  182.     esac
  184.     if [ "$termux" != true ]; then
  185.         # Test for the right location of the "shells" file
  186.         if [ -f /etc/shells ]; then
  187.             shells_file=/etc/shells
  188.         elif [ -f /usr/share/defaults/etc/shells ]; then # Solus OS
  189.             shells_file=/usr/share/defaults/etc/shells
  190.         else
  191.             error "could not find /etc/shells file. Change your default shell manually."
  192.             return
  193.         fi
  195.         # Get the path to the right zsh binary
  196.         # 1. Use the most preceding one based on $PATH, then check that it's in the shells file
  197.         # 2. If that fails, get a zsh path from the shells file, then check it actually exists
  198.         if ! zsh=$(which zsh) || ! grep -qx "$zsh" "$shells_file"; then
  199.             if ! zsh=$(grep '^/.*/zsh$' "$shells_file" | tail -1) || [ ! -f "$zsh" ]; then
  200.                 error "no zsh binary found or not present in '$shells_file'"
  201.                 error "change your default shell manually."
  202.                 return
  203.             fi
  204.         fi
  205.     fi
  207.     # We're going to change the default shell, so back up the current one
  208.     if [ -n "$SHELL" ]; then
  209.         echo $SHELL > ~/.shell.pre-oh-my-zsh
  210.     else
  211.         grep "^$USER:" /etc/passwd | awk -F: '{print $7}' > ~/.shell.pre-oh-my-zsh
  212.     fi
  214.     # Actually change the default shell to zsh
  215.     if ! chsh -s "$zsh"; then
  216.         error "chsh command unsuccessful. Change your default shell manually."
  217.     else
  218.         export SHELL="$zsh"
  219.         echo "${GREEN}Shell successfully changed to '$zsh'.${RESET}"
  220.     fi
  222.     echo
  223. }
  225. main() {
  226.     # Run as unattended if stdin is closed
  227.     if [ ! -t 0 ]; then
  228.         RUNZSH=no
  229.         CHSH=no
  230.     fi
  232.     # Parse arguments
  233.     while [ $# -gt 0 ]; do
  234.         case $1 in
  235.             --unattended) RUNZSH=no; CHSH=no ;;
  236.             --skip-chsh) CHSH=no ;;
  237.             --keep-zshrc) KEEP_ZSHRC=yes ;;
  238.         esac
  239.         shift
  240.     done
  242.     setup_color
  244.     if ! command_exists zsh; then
  245.         echo "${YELLOW}Zsh is not installed.${RESET} Please install zsh first."
  246.         exit 1
  247.     fi
  249.     if [ -d "$ZSH" ]; then
  250.         cat <<-EOF
  251.             ${YELLOW}You already have Oh My Zsh installed.${RESET}
  252.             You'll need to remove '$ZSH' if you want to reinstall.
  253.         EOF
  254.         exit 1
  255.     fi
  257.     setup_ohmyzsh
  258.     setup_zshrc
  259.     setup_shell
  261.     printf "$GREEN"
  262.     cat <<-'EOF'
  263.                  __                                     __
  264.           ____  / /_     ____ ___  __  __   ____  _____/ /_
  265.          / __ \/ __ \   / __ `__ \/ / / /  /_  / / ___/ __ \
  266.         / /_/ / / / /  / / / / / / /_/ /    / /_(__  ) / / /
  267.         \____/_/ /_/  /_/ /_/ /_/\__, /    /___/____/_/ /_/
  268.                                 /____/                       ....is now installed!
  271.         Please look over the ~/.zshrc file to select plugins, themes, and options.
  273.         p.s. Follow us on https://twitter.com/ohmyzsh
  275.         p.p.s. Get stickers, shirts, and coffee mugs at https://shop.planetargon.com/collections/oh-my-zsh
  277.     EOF
  278.     printf "$RESET"
  280.     if [ $RUNZSH = no ]; then
  281.         echo "${YELLOW}Run zsh to try it out.${RESET}"
  282.         exit
  283.     fi
  285.     exec zsh -l
  286. }
  288. main "$@"