Linux Cheatsheet Praktis: Perintah Harian yang Paling Berguna

pwd                 # lihat lokasi saat ini
ls -la              # list file detail (termasuk hidden)
cd /path/to/dir     # pindah directory
mkdir -p logs/app   # buat folder bertingkat
touch app.log       # buat file kosong
cp -r src backup/   # copy folder
mv old new          # rename / pindah
rm -rf tmp/         # hapus folder (hati-hati)

cat file.txt        # tampilkan isi file
less file.txt       # baca dengan scroll
head -n 20 file.txt # 20 baris pertama
tail -n 20 file.txt # 20 baris terakhir
tail -f app.log     # pantau log realtime

find . -name "*.log"          # cari file log
grep "ERROR" app.log          # cari kata di file
grep -R "TODO" src/            # recursive search
rg "timeout" src/              # ripgrep lebih cepat

chmod +x script.sh             # jadikan executable
chmod 644 file.txt             # rw-r--r--
chown user:group file.txt      # ganti owner
ls -l                          # cek permission

ps aux | head                  # list proses
top                            # monitor CPU/RAM realtime
htop                           # versi lebih nyaman (jika ada)
kill -9 <pid>                  # hentikan proses paksa

ps aux | grep node
pgrep -fl node

df -h                           # ruang disk
du -sh *                        # ukuran folder
du -sh /var/log/* | sort -h     # log terbesar

ip a                            # info network interface
ping 8.8.8.8                    # test koneksi
curl ifconfig.me                # cek IP publik
curl -I https://example.com     # cek response header

ss -tulnp                       # cek port listen
lsof -i :3000                   # siapa yang pakai port 3000

systemctl status nginx
systemctl start nginx
systemctl stop nginx
systemctl restart nginx
journalctl -u nginx -f          # log service realtime

sudo apt update
sudo apt install <package>
sudo apt remove <package>

sudo dnf install <package>

tar -czvf app.tar.gz app/       # compress folder
tar -xzvf app.tar.gz            # extract
zip -r app.zip app/
unzip app.zip

ssh user@server
scp file.txt user@server:/tmp/
rsync -avz ./app user@server:/opt/app

echo $PATH
export NODE_ENV=production
alias ll="ls -la"

git status
git add .
git commit -m "feat: update"
git push
 
npm install
npm run dev
npm run build