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Shell: Zsh + Oh My Zsh + PowerLevel10k

Todo

Research:

Install Zsh and log out, when you login back again zsh will be your new default shell:

sudo apt install -y zsh
# change default shell
chsh -s $(which zsh)
# log out
gnome-session-quit --no-prompt

Open a terminal and choose the following when being prompted for the zsh config:

(1)  Continue to the main menu.
(1)  Configure settings for history, i.e. command lines remembered
     and saved by the shell.  (Recommended.)
  # (1) Number of lines of history kept within the shell.
  100000
  # (3) Number of lines of history to save to $HISTFILE.
  # (0)  Remember edits and return to main menu (does not save file yet)
(2)  Configure the new completion system.  (Recommended.)
  (1)  Turn on completion with the default options.
(4)  Pick some of the more common shell options.  These are simple "on"
     or "off" switches controlling the shell's features.
  # (1) Change directory given just path.
    (s) to set it (turn it on)
  # (4) Beep on errors.
    (s) to set it (turn it on)
  # (0)  Remember edits and return to main menu (does not save file yet)
(0)  Exit, saving the new settings.  They will take effect immediately.

https://github.com/ohmyzsh/ohmyzsh?tab=readme-ov-file#basic-installation https://github.com/romkatv/powerlevel10k?tab=readme-ov-file#oh-my-zsh

Install Oh My Zsh, this will close the current terminal:

# TODO: try using: sh -s --unattended
curl -sS -L -f "https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh" \
  | sh
exit

Warning

At this point you should have the fonts installed as per the guide.

Open a new terminal and set up the theme, this will close the current terminal:

git clone --depth=1 \
  "https://github.com/romkatv/powerlevel10k.git" \
  ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/themes/powerlevel10k
sed -i \
  's:ZSH_THEME="robbyrussell":ZSH_THEME="powerlevel10k/powerlevel10k":' \
  "${HOME}/.zshrc"
exit

Open a terminal and choose the following when being prompted for the powerlevel10k config:

Does this look like a diamond (rotated square)?
  (y)  Yes.
Does this look like a lock?
  (y)  Yes.
Does this look like an upwards arrow?
  (n)  No.
Does this look like an upwards arrow?
  (y)  Yes.
What digit is the downwards arrow pointing at?
  (1)  It is pointing at '1'.
Do all these icons fit between the crosses?
  (n)  No. Some icons overlap neighbouring crosses.
Prompt Style
  (1)  Lean.
Character Set
  (1)  Unicode.
Prompt Colors
  (1)  256 colors.
Show current time?
  (2)  24-hour format.
Prompt Height
  (2)  Two lines.
Prompt Connection
  (1)  Disconnected.
Prompt Frame
  (1)  No frame.
Prompt Spacing
  (1)  Compact.
Icons
  (2)  Many icons.
Prompt Flow
  (1)  Concise.
Enable Transient Prompt?
  (y)  Yes.
Instant Prompt Mode
  (1)  Verbose (recommended).
Apply changes to ~/.zshrc?
  (y)  Yes (recommended).

If you decide to skip this, you can configure the Oh My Zsh theme using:

p10k configure

Todo

Fix basic zsh settings not being saved, e.g. HISTSIZE

Set up the plugins:

# disable P10k pyenv prompt token, it becomes duplicate of virtualenv (bug?)
sed -i \
  "s/    pyenv/    # pyenv/" \
  "${HOME}/.p10k.zsh"
# set plugins, the more the slower the prompt
ZSH_PLUGINS=$(
  cat <<EOF
plugins=( \n\
    command-not-found \n\
    dirhistory \n\
    docker \n\
    docker-compose \n\
    encode64 \n\
    git \n\
    helm \n\
    history \n\
    jsontools \n\
    kubectl \n\
    poetry \n\
    rsync \n\
    #thefuck \n\
    urltools \n\
    web-search \n\
)
EOF
)
sed -i \
  "s/plugins=(git)/${ZSH_PLUGINS}/" \
  "${HOME}/.zshrc"

Todo

Research other useful plugins

Maybe:

  • pip
  • pyenv
  • pylint
  • python
  • redis-Compilation
  • sudo
  • tmux
  • tmuxinator
  • vscode

Desired:

Install direnv:

tee -a "${HOME}/.zshrc" >/dev/null <<EOF

# Add hooks for direnv to allow auto processing for .envrc files
export DIRENV_LOG_FORMAT=""
eval "\$(direnv hook zsh)"
EOF

Key bindings, aliases, completions, path:

# add user binaries directory to PATH
# https://unix.stackexchange.com/questions/36871/where-should-a-local-executable-be-placed
mkdir -p "${HOME}/bin" "${HOME}/.local/bin"
sed -i \
  's%# \(export PATH=$HOME.*\)%\1%' \
  "${HOME}/.zshrc"

# key bindings for navigating the command line
# home
bindkey "^[[H" beginning-of-line
# end
bindkey "^[[F" end-of-line
# ctrl + right arrow
bindkey "^[[1;5C" forward-word
# ctrl + left arrow
bindkey "^[[1;5D" backward-word
# ctrl + backspace
bindkey "^H" backward-delete-word
# ctrl + delete
bindkey "^[[3;5~" delete-word
# esc '
bindkey "^[;" quote-line
# ctrl + alt + ' (at the end of the region)
bindkey "^[\x27" quote-region
# ctrl + o
bindkey "^O" up-case-word
# ctrl + l
bindkey "^L" down-case-word
EOF

# Terminal copy-paste with xclip
tee -a "${HOME}/.zshrc" >/dev/null <<EOF

# used to pipe into the clipboard, e.g. ps -e | xcc
alias xcc="xclip -rmlastnl -selection clipboard -filter | xclip -rmlastnl -selection primary"
# used to copy the current line, e.g. xc "abcd efgh"
function xc() { echo -n "\$*" | xcc ; }
# used to paste into stdout
alias xv="xclip -o"
EOF

# Aliases not covered by oh my zsh plugins
tee -a "${HOME}/.zshrc" >/dev/null <<EOF

# Common command aliases
# redirect following and silent except for errors
alias curl='curl -sS -L'
# sort keys in JSON output
alias jq='jq -S'
alias pyjsonlint='python -m json.tool'
alias pyjsonlint-no-stdout='pyjsonlint >/dev/null'
EOF

# init completions
tee -a "${HOME}/.zshrc" >/dev/null <<EOF

autoload -Uz compinit && compinit
EOF

source "${HOME}/.zshrc"

Todo

Investigate https://github.com/zsh-users/zsh-completions

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

plugins=(… zsh-completions)

must be placed before compinit

Todo

install colorls

https://github.com/athityakumar/colorls

https://linuxize.com/post/how-to-install-ruby-on-ubuntu-18-04/

Todo

# The following lines were added by compinstall

zstyle ':completion:*' completer _complete _ignored
zstyle :compinstall filename '/home/tdumitrescu/.zshrc'

autoload -Uz compinit
compinit
# End of lines added by compinstall
# Lines configured by zsh-newuser-install
HISTFILE=~/.histfile
HISTSIZE=100000
SAVEHIST=100000
setopt autocd beep nomatch notify
bindkey -e
# End of lines configured by zsh-newuser-install