Like many developers, I use the terminal on a daily basis.
I actually use 2 different terminals: the one embedded in VScode and iTerm2 (I’m on macOS). Although this post contains the word bash, I don’t use it directly. I use zsh with ohmyzsh. If you never heard about it before, it supercharges bash and adds more interactivity. It also gives me interesting feedbacks like the branch and working directory I am currently in.
By the way, if you like the theme I’m using, feel free to steal my dotfiles. Also, I won’t be covering the Git part as I already did in this blog post.
Cheatsheet
How many “.js” files does this folder contains?
find . -name "*.js" | wc -l
# You can also exclude a folder (i.e. node_modules)find . -name "*.js" -not -path "**/node_modules/**" | wc -lHow many lines of code in this folder?
find . -name '*.vue' | xargs wc -l
# You can also exclude a folder (i.e. node_modules)find . -name '*.vue' -not -path "**/node_modules/**" | xargs wc -lFind all occurrences
Example: list where “console.log” is used in the codebase.
grep -Ril "console.log" .
# You can also exclude folders (i.e. .cache and node_modules)grep -Ril "console.log" . --exclude-dir={\*cache,node_modules\*}How big is my folder?
Example: list where “console.log” is used in the codebase.
du -sh .
# same but excluding git folderdu -sh -I .git .What about Vim?
I mostly use Vim for Git commits. It can also be handy when your IDE struggle to open 10 0000 lines long files. To pimp my vim™, I installed something called SpaceVim. It adds fancy things like a file explorer and the syntax color.
Aliases
Everything verbose!
Since you’re there, I aliased all my filesystem commands to make them more verbose.
# mv, rm, cpalias mv='mv -v'alias rm='rm -v'alias cp='cp -v'RAM consumption
alias ram='ps aux | awk '"'"'{print $6/1024 " MB\t\t" $11}'"'"' | sort -rn | head -25'
# Usage$ ram507.039 MB /usr/local/bin/node461.391 MB /Applications/Brave358.879 MB /Applications/Visual...🏴☠️ Change your mac address
This one is not really tech-related. I mostly use this one in airports/coffee shops to renew mac address (and get illimited access).
function airport() { local mac=$(openssl rand -hex 6 | sed 's/\(..\)/\1:/g; s/.$//') sudo ifconfig en0 ether $mac sudo ifconfig en0 down sudo ifconfig en0 up echo "Your new physical address is $mac"}🙃 The Russian Roulette
alias russian-roulette=' [ $(( $RANDOM % 6 )) == 0 ] && rm -rf / || echo "You live"'If you like to live on the edge… but please, be smart! And don’t run commands you don’t know the effects of!
Bonus #1: Tree
I use tree to display directories as trees. It very cool to write documentation.
$ tree content/pages
├── components│ ├── button.js│ └── checkbox.jpg├── pages│ ├── about.js│ └── dashboard.js├── index.js└── README.mdBonus #2: Gtop
Gtop is a system monitoring dashboard. Typing Gtop on my keyboard is usually quicker than opening the activity monitor (for some unknown reasons I always struggle to find it).
Bonus #3: cloc
If you have npm and npx installed you can use cloc like this:
$ npx cloc src content gatsby-*
------------------------------------------------------------Language files blank comment code------------------------------------------------------------Markdown 64 2695 0 8558JavaScript 77 475 78 3761SVG 3 13 1 1841------------------------------------------------------------SUM: 144 3183 79 14160------------------------------------------------------------
# You can also check a subset of files like this$ npx cloc src --match-f='.test.js'About the author
Hey, I'm Maxence Poutord, a passionate software engineer. In my day-to-day job, I'm working as a senior front-end engineer at Orderfox. When I'm not working, you can find me travelling the world or cooking.
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