Zsh & Oh-My-Zsh

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🌐 Resources 🔗

• Zsh

  • zsh community projects

• Oh My Zsh

• Zsh for Humans

• Nerd Fonts

• e.g. NeuralNine/config-files

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Zsh Installation

sudo apt update -y && sudo apt install -y curl eza git-all unzip zsh
sudo chsh -s $(which zsh) $(whoami)

zsh

• If eza does not install via apt, install it manually

sudo sh -c '
    apt update &&
    apt install -y gpg &&
    mkdir -p /usr/share/keyrings &&
    wget -qO- https://raw.githubusercontent.com/eza-community/eza/main/deb.asc | gpg --dearmor -o /usr/share/keyrings/gierens.gpg &&
    echo "deb [arch=amd64 signed-by=/usr/share/keyrings/gierens.gpg] http://deb.gierens.de stable main" | tee /etc/apt/sources.list.d/gierens.list &&
    chmod 644 /usr/share/keyrings/gierens.gpg /etc/apt/sources.list.d/gierens.list &&
    apt update &&
    apt install -y eza
'

• Install a specific nerd font and set it as terminal emulator font

  • e.g. JetBrainsMono Nerd Font

cd
mkdir -p $HOME/.local/share/fonts
cd $HOME/.local/share/fonts
curl -fLO https://github.com/ryanoasis/nerd-fonts/releases/latest/download/JetBrainsMono.zip
unzip JetBrainsMono.zip
rm JetBrainsMono.zip

fc-cache -fv

# Set "JeBrainsMono Nerd Font Mono" Regular font for the terminal
# e.g. for Terminator - must be run at least one time
sed -i '/\[\[default\]\]/,/^\[/s/^ *font = .*/    font = JetBrainsMono Nerd Font Mono 16/' "$HOME/.config/terminator/config"

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OhMyZsh

sh -c "$(wget -O- https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

# Confirm with y to change the default shell to zsh

Install the desired plugins and themes

# Auto-suggestions
git clone https://github.com/zsh-users/zsh-autosuggestions ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/plugins/zsh-autosuggestions

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

# Powerlevek10k Theme
git clone --depth=1 https://github.com/romkatv/powerlevel10k.git ${ZSH_CUSTOM:-$HOME/.oh-my-zsh/custom}/themes/powerlevel10k

zshrc

Edit the $HOME/.zshrc

• Change the Zsh theme to use Powerlevel10k, add or update plugins to include additional Zsh plugins and add some lines before the source .*oh-my-zsh.sh command for additional configuration

ZSHRC="$HOME/.zshrc"

# Set the new theme
sed -i 's/^ZSH_THEME=.*/ZSH_THEME="powerlevel10k\/powerlevel10k"/' "$ZSHRC"

# Replace the plugins line with the new plugins
sed -i '/^plugins=/ { s/=.*/=(command-not-found kubectl zsh-autosuggestions zsh-syntax-highlighting)/; }' "$ZSHRC"

# Add additional lines before sourcing oh-my-zsh
sed -i '/^source .*oh-my-zsh.sh/ i \
# Fix errors\
ZSH_DISABLE_COMPFIX="true"\n\
\
# Skip all aliases in lib files\
zstyle '\'' :omz:lib:* '\'' aliases no\n' "$ZSHRC"

• Check the file and restart zsh to apply the changes and configure Powerlevel10k Theme.

zsh

# Add "user" to be shown in the prompt
grep -q '^[[:space:]]*user[[:space:]]*$' "$HOME/.p10k.zsh" || sed -i '/os_icon.*# os identifier/ a\    user' "$HOME/.p10k.zsh"

• EXTRA: to manually access the Powerlevel10k built-in configuration wizard again, run:

p10k configure

EXTRA

Set the same ohmyzsh config for the root user by symlinking the current user's zsh configuration.

ROOTUSER=root
USER_HOME_PATH=$(eval echo "~$ROOTUSER")

sudo mv ${USER_HOME_PATH}/.zshrc ${USER_HOME_PATH}/.zshrc.bak 2>/dev/null

sudo ln -sf $HOME/.zshrc ${USER_HOME_PATH}/.zshrc
sudo ln -sf $HOME/.oh-my-zsh ${USER_HOME_PATH}/.oh-my-zsh
sudo ln -sf $HOME/.p10k.zsh ${USER_HOME_PATH}/.p10k.zsh

sudo chsh -s $(which zsh) $ROOTUSER

aliases

Define custom Aliases within the ZSH_CUSTOM folder (if a oh-my-zsh user), or in the $HOME/.zshrc file if only zsh user.

# e.g. of my custom aliases

tee $ZSH_CUSTOM/aliases.zsh > /dev/null <<EOF
# Alias to update the system
alias updateos='sudo sh -c "apt update && apt -y upgrade && apt -y autoremove"'

# Comment above & Uncomment the following for full Ubuntu + Snap + Brew update
# alias updateos='sudo sh -c "sudo apt update && sudo apt -y upgrade && sudo apt -y autoremove && sudo snap refresh" && brew upgrade'

# OpenVpn Aliases
alias htbvpn='sudo openvpn --config $HOME/htb/htb.ovpn --daemon'        # HTB FREE VPN
alias htbvipvpn='sudo openvpn --config $HOME/htb/htbvip.ovpn --daemon'  # HTB VIP VPN
alias htbvipplusvpn='sudo openvpn --config $HOME/htb/htbvipplus.ovpn --daemon'  # HTB VIP+ VPN
alias thmvpn='sudo openvpn --config $HOME/thm/thm.ovpn --daemon'
alias pwnxvpn='sudo openvpn --config $HOME/pwnx/pwnx.ovpn --daemon'
alias killopenvpn='sudo pkill openvpn'

# Additional Aliases
alias clipcopy='xclip -selection clipboard'
alias df='df -h'
alias diff='diff --color=auto'
alias dir='dir --color=auto'
alias egrep='egrep --color=auto'
alias fgrep='fgrep --color=auto'
alias grep='grep --color=auto'
alias h='history -100 -1'
alias history='omz_history'
alias hl='history | less'
alias hs='history | grep'
alias hsi='history | grep -i'
alias hz='omz_history -E'
alias ipa='ip -br -c a'
alias l='eza -lah --group-directories-first'
alias la='ls -A'
alias ll='l -T'
alias ls='ls -lh --color=auto'
alias mask='awk '\''{ printf substr($0, 1, 5); for (i=6; i<=length($0); i++) printf "*"; print "" }'\'''
alias p3='python3'
alias ports='ss -tunlp'
alias python='python3'
alias sudo='sudo -v; sudo '
alias ugq='ugrep --pretty --hidden -Qria'
alias vdir='vdir --color=auto'
EOF

path

Set Custom PATH.

# e.g. of my custom PATH

tee $ZSH_CUSTOM/my_paths.zsh > /dev/null <<EOF
# Go
export PATH=\$PATH:\$HOME/go/bin

# iximiuz Labs
export PATH=\$PATH:\$HOME/.iximiuz/labctl/bin
if command -v labctl > /dev/null; then
  source <(labctl completion zsh)
fi

EOF

Reboot the system to apply all the zsh settings

reboot

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