Cheatsheets | ArgoBox

Systemd vs OpenRC

linux

Service management commands for both init systems

Service Control

systemd OpenRC Description

systemctl start nginx rc-service nginx start Start a service

systemctl stop nginx rc-service nginx stop Stop a service

systemctl restart nginx rc-service nginx restart Restart a service

systemctl status nginx rc-service nginx status Check status

systemctl enable nginx rc-update add nginx default Enable at boot

systemctl disable nginx rc-update del nginx default Disable at boot

System Information

systemd OpenRC Description

systemctl list-units rc-status List running services

systemctl list-unit-files rc-update show List all services

journalctl -u nginx cat /var/log/nginx/*.log View service logs

journalctl -f tail -f /var/log/messages Follow system logs

Docker Essential Commands

docker

Common Docker operations for containers, images, and networks

docker ps List running containers

docker ps -a List all containers (including stopped)

docker images List local images

docker pull nginx:latest Pull an image from registry

docker run -d --name web -p 80:80 nginx Run container in background with port mapping

docker exec -it web /bin/bash Execute interactive shell in container

docker logs -f web Follow container logs

docker stop web && docker rm web Stop and remove container

docker system prune -a Remove all unused data (images, containers, networks)

docker network ls List networks

docker network create mynet Create a network

docker volume ls List volumes

docker inspect web View detailed container info

docker stats Live resource usage stats

docker compose up -d Start compose stack in background

docker compose down -v Stop and remove stack with volumes

docker compose logs -f Follow compose stack logs

docker compose pull Pull latest images for stack

Kubernetes kubectl Commands

kubernetes

Essential kubectl commands for cluster management

kubectl get pods List pods in current namespace

kubectl get pods -A List pods in all namespaces

kubectl get pods -o wide List pods with node info

kubectl describe pod mypod Detailed pod information

kubectl logs mypod -f Follow pod logs

kubectl logs mypod -c mycontainer Logs from specific container

kubectl exec -it mypod -- /bin/bash Interactive shell in pod

kubectl apply -f manifest.yaml Apply configuration

kubectl delete -f manifest.yaml Delete resources from file

kubectl get svc List services

kubectl get deploy List deployments

kubectl get nodes List cluster nodes

kubectl top pods Resource usage by pods

kubectl top nodes Resource usage by nodes

kubectl rollout restart deploy/myapp Restart deployment

kubectl rollout status deploy/myapp Watch rollout progress

kubectl scale deploy/myapp --replicas=3 Scale deployment

kubectl port-forward svc/myapp 8080:80 Forward local port to service

kubectl get events --sort-by=.lastTimestamp Recent cluster events

kubectl config get-contexts List available contexts

kubectl config use-context mycluster Switch context

Git Workflow Commands

git

Common Git operations for version control

git status Show working tree status

git add . Stage all changes

git commit -m 'message' Commit with message

git push origin main Push to remote

git pull --rebase Pull with rebase

git fetch --all Fetch all remotes

git branch -a List all branches

git checkout -b feature/new Create and switch to branch

git merge feature/new Merge branch into current

git rebase main Rebase current branch onto main

git log --oneline -10 Show last 10 commits (short)

git log --graph --oneline Show commit graph

git diff Show unstaged changes

git diff --staged Show staged changes

git stash Stash current changes

git stash pop Apply and remove stash

git reset --soft HEAD~1 Undo last commit, keep changes staged

git reset --hard HEAD~1 Undo last commit, discard changes

git cherry-pick abc123 Apply specific commit

git remote -v List remotes with URLs

SSH Quick Reference

networking

SSH connections, tunnels, and key management

ssh user@host Basic SSH connection

ssh -p 2222 user@host Connect on non-standard port

ssh -i ~/.ssh/mykey user@host Connect with specific key

ssh -L 8080:localhost:80 user@host Local port forward

ssh -R 8080:localhost:80 user@host Remote port forward

ssh -D 1080 user@host SOCKS proxy

ssh -J jump@bastion user@target Jump host / ProxyJump

ssh-keygen -t ed25519 -C 'comment' Generate ED25519 key

ssh-copy-id user@host Copy public key to host

ssh-add ~/.ssh/mykey Add key to agent

ssh-keyscan host >> ~/.ssh/known_hosts Add host key

scp file.txt user@host:/path/ Copy file to remote

scp user@host:/path/file.txt . Copy file from remote

rsync -avz src/ user@host:/dest/ Sync directory to remote

Network Debugging

networking

Commands for troubleshooting network issues

ip addr Show IP addresses

ip route Show routing table

ip link Show network interfaces

ss -tulpn Show listening ports

ss -s Socket statistics summary

ping -c 4 host Ping host (4 packets)

traceroute host Trace route to host

mtr host Combined ping/traceroute

dig domain.com DNS lookup

dig @8.8.8.8 domain.com DNS lookup with specific server

nslookup domain.com Simple DNS lookup

curl -I https://example.com HTTP headers only

curl -v https://example.com Verbose HTTP request

wget -O- https://example.com Download to stdout

nc -zv host 80 Test TCP port connectivity

tcpdump -i eth0 port 80 Capture packets on port 80

iptables -L -n -v List firewall rules

nft list ruleset List nftables rules

ZFS Storage Commands

storage

ZFS pool and dataset management

zpool status Show pool health status

zpool list List pools with capacity

zpool import List importable pools

zpool import -f tank Force import pool

zpool export tank Export pool

zpool scrub tank Start scrub

zpool history tank Show pool history

zfs list List datasets

zfs list -t snapshot List snapshots

zfs create tank/data Create dataset

zfs snapshot tank/data@backup Create snapshot

zfs rollback tank/data@backup Rollback to snapshot

zfs destroy tank/data@backup Delete snapshot

zfs send tank/data@snap | ssh host zfs recv tank/data Send snapshot to remote

zfs get all tank/data Show all properties

zfs set compression=lz4 tank/data Enable compression

zfs set quota=100G tank/data Set quota

Tailscale VPN Commands

networking

Tailscale mesh VPN management

tailscale status Show connection status

tailscale ip Show Tailscale IP

tailscale ping hostname Ping via Tailscale

tailscale up Connect to network

tailscale down Disconnect from network

tailscale up --ssh Enable Tailscale SSH

tailscale up --advertise-routes=10.0.0.0/24 Advertise subnet

tailscale up --accept-routes Accept advertised routes

tailscale up --exit-node=hostname Use exit node

tailscale netcheck Network connectivity check

tailscale debug derp-map Show DERP relay servers

tailscale file send file.txt hostname: Send file via Taildrop

tailscale logout Log out and disconnect

Disk & Filesystem Commands

storage

Disk management and filesystem operations

lsblk List block devices

lsblk -f List with filesystem info

fdisk -l List partitions

df -h Disk space usage

du -sh /path Directory size

du -sh * | sort -h Sorted directory sizes

ncdu /path Interactive disk usage

mount /dev/sdb1 /mnt Mount filesystem

umount /mnt Unmount filesystem

blkid Show UUIDs and labels

mkfs.ext4 /dev/sdb1 Create ext4 filesystem

e2fsck -f /dev/sdb1 Check ext4 filesystem

tune2fs -l /dev/sdb1 Show ext4 superblock info

smartctl -a /dev/sda SMART health data

hdparm -tT /dev/sda Test disk speed

fstrim -v / TRIM SSD

Process Management

linux

Process monitoring and control

ps aux List all processes

ps aux | grep nginx Find specific process

pgrep -a nginx Find process by name

top Interactive process viewer

htop Better interactive viewer

kill PID Graceful kill (SIGTERM)

kill -9 PID Force kill (SIGKILL)

pkill nginx Kill by name

killall nginx Kill all with name

nice -n 10 command Run with lower priority

renice -n 10 -p PID Change priority

nohup command & Run immune to hangups

command & Run in background

jobs List background jobs

fg %1 Bring job to foreground

bg %1 Resume job in background