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Bash Terminal

Bash

Bourne Again SHell (Bash) is the GNU Project's shell.

Bash is an sh-compatible shell that incorporates useful features from the Korn shell (ksh) and C shell (csh).

Terminal theme

The standard macOS Terminal appearance is just boring. Apple included a few nice preset themes too, but to really make your terminal appearance stand out you need to customize it yourself.

Below is the Terminal using my personal theme and .bash_profile configuration. Feel free to copy and use it.

macOS Bash theme

Enable Antialias text, Bold Fonts, ANSI Colors, and Bright Colors

  1. Open the macOS Terminal

  2. In the top menu bar, select Terminal then Preferences... (⌘,)

  3. Select the Profiles tab

  4. Choose the Basic or Pro profile/theme from the left side list

  5. Press the Default button near the bottom of the window

  6. Under the Text tab check the boxes:

    • Antialias text
    • Use bold fonts
    • Display ANSI colors
    • Use bright colors for bold text

Terminal Profiles - Text

Update and select Bash as the default shell

You can update and set up Bash following this tutorial or using the mac-setup install script:

bash <(curl -fsSL raw.githubusercontent.com/monsieurborges/mac-setup/master/install) bash

If you decide to do it on your own:

  1. Define HOMEBREW_PREFIX

    if [[ "$(/usr/bin/uname -m)" == "arm64" ]]; then
    HOMEBREW_PREFIX="/opt/homebrew"
else
    HOMEBREW_PREFIX="/usr/local"
fi

eval "$(${HOMEBREW_PREFIX}/bin/brew shellenv)"

  2. Update bash:

    brew install bash

  3. Add the new shell to the list of allowed shells:

    if $(grep -Fxq "${HOMEBREW_PREFIX}/bin/bash" /etc/shells); then
    echo "The list of shells is already updated"
else
    sudo echo "${HOMEBREW_PREFIX}/bin/bash" >> /etc/shells
fi

  4. Change to the new shell:

    chsh -s "${HOMEBREW_PREFIX}/bin/bash"

  5. Check the bash version:

    bash --version

Improve Bash theme

Bash command line history

Follow the tutorial or just paste that on the Terminal:

bash <(curl -fsSL raw.githubusercontent.com/monsieurborges/mac-setup/master/install) bashconfig

Set up the command line history search

Paste that in the terminal:

read -r -d '' INPUTRC <<"EOF"
"\e[A":history-search-backward
"\e[B":history-search-forward

set colored-stats on
set mark-symlinked-directories on
set show-all-if-ambiguous on
set show-all-if-unmodified on
set visible-stats on
set completion-ignore-case on
TAB: menu-complete
EOF

echo "${INPUTRC}" > "${HOME}/.inputrc"

Update .bash_profile

  1. Backup the current .bash_profile file:

    if [[ -f "${HOME}/.bash_profile" ]]; then
    cp "${HOME}/.bash_profile" "${HOME}/.bash_profile.bkp"
fi

  2. Update the .bash_profile. Paste that in the terminal:

    read -r -d '' BASH_PROFILE <<"EOF"
#!/bin/bash
# Bash Profile for macOS
# Copyright (c) Monsieur Borges
# https://github.com/monsieurborges/mac-setup

# LS Colors
# CLICOLOR use ANSI color sequences to distinguish file types
export CLICOLOR=true
export LSCOLORS=gxegbxdxcxahadabafacge
alias ls='ls -GFh'

# Bash Colors and formatting
CYAN="\[\e[38;5;6m\]"
MAGENTA="\[\e[38;5;13m\e[1m\]"
SKYBLUE="\[\e[38;5;25m\e[1m\]"
NONE="\[\e[0m\e[21m\]"

# Prevent Mac OS ._ in in tar.gz files
export COPYFILE_DISABLE=true

# Homebrew
if [[ "$(/usr/bin/uname -m)" == "arm64" ]]; then
    # ARM macOS
    HOMEBREW_PREFIX="/opt/homebrew"
else
    # Intel macOS
    HOMEBREW_PREFIX="/usr/local"
fi

eval "$(${HOMEBREW_PREFIX}/bin/brew shellenv)"

# Homebrew completion
if [[ -f "$(brew --prefix)/etc/bash_completion.d/brew" ]]; then
    source "$(brew --prefix)/etc/bash_completion.d/brew"
fi

# Bash completion@2
if [[ -r "$(brew --prefix)/etc/profile.d/bash_completion.sh" ]]; then
    source "$(brew --prefix)/etc/profile.d/bash_completion.sh"
fi

# Bash-Git-prompt
if [[ -f "$(brew --prefix)/etc/bash_completion.d/git-prompt.sh" ]]; then
    GIT_PS1_SHOWCOLORHINTS=true
    GIT_PS1_SHOWDIRTYSTATE=true
    GIT_PS1_SHOWUNTRACKEDFILES=true
    GIT_PS1_DESCRIBE_STYLE='default'
    source "$(brew --prefix)/etc/bash_completion.d/git-prompt.sh"
fi

# exa is a replacement for ls https://github.com/ogham/exa
if command -v exa 1>/dev/null 2>&1; then
    alias ls="exa --group-directories-first --classify"
fi

# Python virtual environment
# Allow pip only for active virtual environment
# Use 'gpip' for global environment
export PIP_REQUIRE_VIRTUALENV=true
gpip(){
    PIP_REQUIRE_VIRTUALENV="" pip "${@}"
}

# Pyenv Python version management
if command -v pyenv 1>/dev/null 2>&1; then
    eval "$(pyenv init -)"
    pyenv virtualenvwrapper
fi

# PRIMARY PROMPT
PROMPT_COMMAND='__git_ps1\
                "\n${MAGENTA}[\d \t] ${SKYBLUE}$(python --version 2>&1)${NONE}\
                \n\u@\h: ${CYAN}\w${NONE}"\
                "\n${VIRTUAL_ENV:+($(basename ${VIRTUAL_ENV}))}\\$ "\
                " (%s)"'
EOF

echo "${BASH_PROFILE}" > "${HOME}/.bash_profile"

Install bash-completion

bash-completion is a collection of command line command completions for the Bash shell.

brew install bash-completion@2

Install docker command-line completion (optional)

brew install docker-completion docker-machine-completion docker-compose-completion

Install exa (optional)

exa is a replacement for ls written in Rust.

brew install exa