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Essential Environment Setup

iTerm

Let's start with installing iTerm.

Please visit https://iterm2.com then download and install it.

Install color themes

Visit https://iterm2colorschemes.com and download the zip or tar.gz and extract it. Follow the installation instruction.

e.g.)

iTerm color themes Example

Homebrew

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

zsh (Z shell)

macOS's default shell is z-shell, so you don't need to install it.

To check the default shell

echo $SHELL

You should see something like

/bin/zsh

Oh My Zsh

Install Oh My Zsh.

sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

Font for Coding

brew tap homebrew/cask-fonts

FiraCode

brew install --cask font-fira-code

For nerd font,

brew install --cask font-fira-code-nerd-font 

Fira Code Sample

Microsoft Cascadia Code

brew install font-cascadia-code-pl

For nerd font,

brew install --cask font-caskaydia-cove-nerd-font 

Cascadia Code Sample

JetBrains Mono

brew install font-jetbrains-mono
brew install font-jetbrains-mono-nerd-font

JetBrains Mono Sample

Dot Files (WIP)

You can keep all aliases, environment variables and functions in ~/.zshrc but as the file gets bigger, it would be hard to maintain it. So it would be a good idea to put them in to multiple files depending on their relevance.

mkdir -p ~/.my-dot-file
echo 'if [ -f ~/.my-dot-file/.all_my_rc ]; then
. ~/.my-dot-file/.all_my_rc
fi' >> ~/.zshrc

Now you can have multiple .some_rc files in ~/.my-dot-file and load them in the ~/.my-dot-file/.all_my_rc so that ~/.zshrc can load them all.

TBD

Oh My Posh

brew install jandedobbeleer/oh-my-posh/oh-my-posh 

To be added...

Other Tools

git

brew install git 

exa

exa is a modern replacement for ls written in Rust.

brew install exa 

Once installed, you can replace ls with exa by adding aliases like.

if type exa >/dev/null 2>&1; then
alias ls0='command ls -G'
alias ll0='ls0 -l'
alias l0='ls0 -al'
alias ls='exa'
alias ll='ls --color-scale -lh'
alias l='ls --color-scale -lah'
else
alias ls='ls -G'
fi

Now you ls is exa. ls -l can be done by ll and ls -a is just l.

You can still use ls by running ls0 (but why?! 🤔)

curl

brew install curl 

wget

brew install wget 

fd

brew install fd 

grep

brew install grep 

htop

brew install htop 

httpie

brew install httpie 

bat

bat (🦇) is an alternative to cat (🐈) with syntax highlighting and Git integration.

brew install bat 

Let's compare bat with cat.

First cat,

cat

Now, bat,

bat

delta

delta is a syntax-highlighting pager for git.

brew install git-delta 

Once installed, add delta to ~/.gitconfig

[core]
pager = delta

For more about delta configuration, please visit the delta user manual.

FYI, this is what I have in my ~/.gitconfig.

[core]
pager = delta

[interactive]
diffFilter = delta --color-only

[delta]
navigate = true
side-by-side = true
features = line-numbers decorations
syntax-theme = Monokai Extended Bright
plus-style = syntax "#003800"
minus-style = syntax "#3f0001"

[delta "decorations"]
commit-decoration-style = bold yellow box ul
file-style = bold yellow ul
file-decoration-style = none
hunk-header-decoration-style = cyan box ul

[delta "line-numbers"]
line-numbers-left-style = cyan
line-numbers-right-style = cyan
line-numbers-minus-style = 124
line-numbers-plus-style = 28

Now the result of git diff may look like this.

delta-example

procs

procs is a modern alternative to ps.

brew install procs 

e.g.)

$ procs
PID:▲ User │ TTY CPU MEM CPU Time │ Command
[%] [%]
1 root │ 0.0 0.3 00:06:14 │ /lib/systemd/systemd --system --deserialize 20
2 root │ 0.0 0.0 00:00:05 │ kthreadd
4 root │ 0.0 0.0 00:00:00 │ kworker/0:0H
6 root │ 0.0 0.0 00:00:00 │ mm_percpu_wq
7 root │ 0.0 0.0 00:00:42 │ ksoftirqd/0
8 root │ 0.0 0.0 00:19:13 │ rcu_sched
9 root │ 0.0 0.0 00:00:00 │ rcu_bh
10 root │ 0.0 0.0 00:00:00 │ migration/0
11 root │ 0.0 0.0 00:01:18 │ watchdog/0
12 root │ 0.0 0.0 00:00:00 │ cpuhp/0
13 root │ 0.0 0.0 00:00:00 │ kdevtmpfs
14 root │ 0.0 0.0 00:00:00 │ netns
15 root │ 0.0 0.0 00:00:00 │ rcu_tasks_kthre
16 root │ 0.0 0.0 00:00:00 │ kauditd
17 root │ 0.0 0.0 00:02:53 │ khungtaskd
18 root │ 0.0 0.0 00:00:00 │ oom_reaper
19 root │ 0.0 0.0 00:00:00 │ writeback
20 root │ 0.0 0.0 00:00:00 │ kcompactd0
21 root │ 0.0 0.0 00:00:00 │ ksmd
22 root │ 0.0 0.0 00:00:00 │ khugepaged
:

dust

dust is more intuitive du - display disk usage statistics

brew install dust 

e.g.)

$ dust
4.0K ┌── blah-b1a.txt│ ████████ │ 17%
4.0K ┌─┴ b1 │ ████████ │ 17%
4.0K ┌─┴ b │ ████████ │ 17%
0B │ ┌── c2 │ ░░░░░░░░░░░░░░█ │ 0%
4.0K │ ├── blah-c.txt │ ░░░░░░░████████ │ 17%
4.0K │ │ ┌── blah-c1a.txt│ ░░░░░░░████████ │ 17%
4.0K │ ├─┴ c1 │ ░░░░░░░████████ │ 17%
8.0K ├─┴ c │ ███████████████ │ 33%
0B │ ┌── a2 │ ░░░░░░░░░░░░░░░░░░░░░░█ │ 0%
0B │ ├── a3 │ ░░░░░░░░░░░░░░░░░░░░░░█ │ 0%
4.0K │ ├── blah-a.txt │ ░░░░░░░░░░░░░░░████████ │ 17%
4.0K │ │ ┌── blah-a1a.txt│ ░░░░░░░░▒▒▒▒▒▒▒████████ │ 17%
4.0K │ │ ├── blah-a1b.txt│ ░░░░░░░░▒▒▒▒▒▒▒████████ │ 17%
8.0K │ ├─┴ a1 │ ░░░░░░░░███████████████ │ 33%
12K ├─┴ a │ ███████████████████████ │ 50%
24K ┌─┴ . │████████████████████████████████████████████ │ 100%

fzf

fzf is a general-purpose command-line fuzzy finder.

brew install fzf
  • Optional
    # To install useful key bindings and fuzzy completion:
    $(brew --prefix)/opt/fzf/install

e.g.)

$ fzf
  b/b1/blah-b1a.txt
c/c1/blah-c1a.txt
c/blah-c.txt
a/a1/blah-a1a.txt
a/a1/blah-a1b.txt
> a/blah-a.txt
6/6
>
  c/c1/blah-c1a.txt
> c/blah-c.txt
2/6
> c
> c/c1/blah-c1a.txt
1/6
> c1

tokei

tokei is a tool to get statistics of a project source code.

brew install tokei

e.g.)

$ tokei 
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
CSS 2 84 58 13 13
JavaScript 4 277 267 0 10
JSON 4 11199 11199 0 0
Scala 150 74098 58383 952 14763
YAML 1 2 2 0 0
-------------------------------------------------------------------------------
Markdown 46 2725 0 1965 760
|- Scala 24 7733 6346 47 1340
(Total) 10458 6346 2012 2100
===============================================================================
Total 207 88385 69909 2930 15546
===============================================================================
$ tokei --exclude "*.json" 
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
CSS 2 84 58 13 13
JavaScript 4 277 267 0 10
Scala 150 74098 58383 952 14763
YAML 1 2 2 0 0
-------------------------------------------------------------------------------
Markdown 46 2725 0 1965 760
|- Scala 24 7733 6346 47 1340
(Total) 10458 6346 2012 2100
===============================================================================
Total 203 77186 58710 2930 15546
===============================================================================

bottom

bottom is a customizable cross-platform graphical process/system monitor for the terminal. It is like htop with more graphical representation.

brew install bottom 

NOTE: to run bottom, the command is not bottom but btm.

$ btm

bottom example

bandwhich

bandwhich is a utility for displaying current network utilization.

brew install bandwhich 
# If bandwhich doesn't work,
$ sudo bandwhich
 Total Up / Down: 1.66KiBps / 910Bps
┌Utilization by process name─────────────────────┐┌Utilization by remote address──────────────────┐
│Process Connections Up / Down ││Remote Address Up / Down │
│ ││ │
│Abc[...]xyz 5 1.56KiBps / 231Bps ││syd1[..]net. 1.51KiBps / 181Bps │
│Someapp 6 102Bps / 462Bps ││PC-1. 0Bps / 576Bps │
<UNKNOWN> 1 0Bps / 216Bps ││PC-2. 0Bps / 102Bps │
│ ││192.168.123.255 51Bps / 0Bps │
│ ││255.255.255.255 51Bps / 0Bps │
│ ││syd1[..]net. 16Bps / 13Bps │
│ ││syd6[..]net. 16Bps / 13Bps │
│ ││ec2-[..]com. 4Bps / 6Bps │
│ ││cdn-[..]com. 4Bps / 6Bps │
│ ││cdn-[..]com. 4Bps / 6Bps │
│ ││1.2.3.200 4Bps / 4Bps │
│ ││ │
└────────────────────────────────────────────────┘└───────────────────────────────────────────────┘
┌Utilization by connection────────────────────────────────────────────────────────────────────────┐
│Connection Process Up / Down │
│ │
<en0>:49269 => syd15s20-in-f14.1e100.net.:443 (udp) Abc[...]xyz 1.51KiBps / 181Bps │
<en0>:12345 => PC-1.:12345 (udp) Someapp 0Bps / 315Bps │
<en0>:54915 => PC-1.:54915 (udp) <UNKNOWN> 0Bps / 216Bps │
<en0>:12345 => 255.255.255.255:12345 (udp) Someapp 51Bps / 0Bps │
<en0>:12345 => 192.168.2.255:12345 (udp) Someapp 51Bps / 0Bps │
<lo0>:12345 => PC-2.:12345 (udp) Someapp 0Bps / 51Bps │
<lo0>:12345 => PC-2.:12345 (udp) Someapp 0Bps / 51Bps │
<en0>:12345 => PC-1.:12345 (udp) Someapp 0Bps / 45Bps │
<en0>:51627 => syd12345-in-f14.1e100.net.:443 (udp) Abc[...]xyz 16Bps / 13Bps │
<en0>:62557 => syd67890-in-f10.1e100.net.:443 (udp) Abc[...]xyz 16Bps / 13Bps │
<en0>:56299 => cdn-111-222-333-444.github.com.:443 (tcp) Abc[...]xyz 4Bps / 6Bps │
<en0>:56312 => ec2-12-345-6[...]te.amazonaws.com.:443 (tcp) Abc[...]xyz 4Bps / 6Bps │
└─────────────────────────────────────────────────────────────────────────────────────────────────┘
Press <SPACE> to pause. Use <TAB> to rearrange tables. (DNS queries hidden).

grex

brew install grex 

TBD

jq

jq is a lightweight and flexible command-line JSON processor.

brew install jq 

mcfly

brew install mcfly 

TBD