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.)
Homebrew
Homebrew is a package manager for macOS (and Linux).
/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 $SHELL
You should see something like
/bin/zsh
Oh My Zsh
Oh my zsh is an open source framework for managing Zsh configuration.
Install Oh My Zsh.
sh -c "$(curl -fsSL https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"
Font for Coding
FiraCode
brew install --cask font-fira-code
For nerd font (Recommended),
brew install --cask font-fira-code-nerd-font
Microsoft Cascadia Code
brew install font-cascadia-code-pl
For nerd font (Recommended),
brew install --cask font-caskaydia-cove-nerd-font
JetBrains Mono
brew install font-jetbrains-mono
For nerd font (Recommended),
brew install font-jetbrains-mono-nerd-font
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
Oh My Posh is a prompt theme engine for any shell.
brew install jandedobbeleer/oh-my-posh/oh-my-posh
To be added...
Other Tools
git
brew install git
eza
eza is a modern replacement for ls written in Rust.
exa is no longer maintained.
brew install eza
Once installed, you can replace ls with eza by adding aliases like.
if type eza >/dev/null 2>&1; then
alias ls0='command ls -G'
alias ll0='ls0 -l'
alias l0='ls0 -al'
alias ls1='eza --icons'
alias ls='ls1 --group-directories-first --git --git-repos-no-status'
alias ll='ls --color -lh --time-style long-iso'
alias l='ls --color -lah --time-style long-iso'
else
alias ls='ls -G'
fi
Now you ls is eza. 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
HTTPie
HTTPie is a simple and intuitive http client CLI tool similar to curl. httpie now has a desktop app as well.
brew install httpie
It installs http and https.
Try the following command to test,
https httpie.io/hello
wget
brew install wget
fd
fd is an alternative to find.
brew install fd
grep
macOS alreadys has grep but if you want to use GNU grep, you can run the following command to install it.
brew install grep
htop
htop is a cross-platform interactive process viewer.
brew install htop
bat
bat (🦇) is an alternative to cat (🐈) with syntax highlighting and Git integration.
brew install bat
Let's compare bat with cat.
First cat,
Now, 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.
procs
procs is a modern alternative to ps written in Rust.
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
===============================================================================
$ tokei --exclude "*.json" --exclude "website"
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
Scala 202 78295 62349 1160 14786
YAML 1 6 5 0 1
-------------------------------------------------------------------------------
Markdown 67 4209 0 3046 1163
|- Scala 40 10970 8954 83 1933
(Total) 15179 8954 3129 3096
===============================================================================
Total 270 82510 62354 4206 15950
===============================================================================
$ tokei modules
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
Scala 201 78282 62339 1160 14783
===============================================================================
Total 201 78282 62339 1160 14783
===============================================================================
$ tokei website
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
CSS 2 94 60 19 15
JavaScript 5 506 427 51 28
JSON 6 21425 21425 0 0
===============================================================================
Total 13 22025 21912 70 43
===============================================================================
tokei docs
===============================================================================
Language Files Lines Code Comments Blanks
===============================================================================
JSON 7 42 42 0 0
-------------------------------------------------------------------------------
Markdown 35 3832 0 2740 1092
|- Scala 33 10831 8848 78 1905
(Total) 14663 8848 2818 2997
===============================================================================
Total 42 3874 42 2740 1092
===============================================================================
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
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
grex is a tool to simplify the task of creating regular expressions.
brew install grex
e.g.)
$ grex a-111 a-222 a-333
^a\-(?:111|222|333)$
$ grex -d a-111 a-222 a-333
^a\-\d\d\d$
$ grex -d a-111 a-222 a-333 b-111
^[ab]\-\d\d\d$
$ grex -d a-111 a-222 a-333 b-111 c-000
^[a-c]\-\d\d\d$
$ grex -d a-111 a-222 a-333 b-111 c-000 d-1234
^(?:d\-\d|[a-c]\-)\d\d\d$
$ grex -d a-111 a-2220 a-333 b-111 c-000 d-1234
^(?:a\-\d\d\d(?:\d)?|d\-\d\d\d\d|[bc]\-\d\d\d)$
$ grex -d a-111 a-2220 a-333 b-111 c-000 d-111 d-1234
^(?:[ad]\-\d\d\d(?:\d)?|[bc]\-\d\d\d)$
$ grex -w -d a-111 a-2220 a-333 b-111 c-000 d-111 d-1234
^\w\-\d\d\d(?:\d)?$
$ grex -w -d a-111 a-2220 a-333 b-111 b-1111 c-000 c-0000 d-111 d-1234
^\w\-\d\d\d(?:\d)?$
$ grex -w -d a-111 a-2220 a-333 b-111 b-1111 c-000 c-0000 d-111 d-12345
^\w\-\d\d\d(?:\d(?:\d)?)?$
$ grex -rwd a-111 a-2220 a-333 b-111 b-1111 c-000 c-0000 d-111 d-12345
^\w\-\d{3,5}$
$ grex -crwd a-111 a-2220 a-333 b-111 b-1111 c-000 c-0000 d-111 d-12345
^\w-\d{3,5}$
jq
jq is a lightweight and flexible command-line JSON processor.
brew install jq
mcfly
brew install mcfly
TBD