16 · Cheatsheets

"It's not knowing but remembering that's the skill; the average engineer's real edge is a ~/notes folder organized like a library."

Each cheatsheet: - Groups frequently used commands - So boilerplate doesn't need to be memorized - Gets found within 5 seconds at the "oh, that was it!" moment

Table of Contents

File	Topic
kubectl.md	Pod debug, rollout, port-forward, kubectx/kubens, JSONPath
docker.md	Build, run, exec, networks, volumes, prune, BuildKit
git.md	Rewrite history, bisect, cherry-pick, reflog, worktree
helm.md	Template debug, release, repo, hook, OCI registry
terraform.md	Plan/apply, state ops, import, console, fmt/validate
aws-cli.md	EC2/S3/IAM, ssm, sts assume-role, profiles, query
linux-troubleshooting.md	top/htop/iotop, strace, lsof, ss, journalctl
networking-tools.md	dig, curl, nc, tcpdump, mtr, ssh tunnel
vim-survival.md	"Which hell am I escaping from" — minimum vim guide

Quick-access tip

To open these cheatsheets instantly from the terminal:

# ~/.bashrc or ~/.zshrc
export DEVOPS_NOTES="$HOME/Desktop/DevOps/16-Cheatsheets"
alias k8s-cs='${EDITOR:-vim} $DEVOPS_NOTES/kubectl.md'
alias dk-cs='${EDITOR:-vim} $DEVOPS_NOTES/docker.md'
alias git-cs='${EDITOR:-vim} $DEVOPS_NOTES/git.md'
alias tf-cs='${EDITOR:-vim} $DEVOPS_NOTES/terraform.md'
alias linux-cs='${EDITOR:-vim} $DEVOPS_NOTES/linux-troubleshooting.md'

# interactive search with fzf
cs() {
  local file
  file=$(ls $DEVOPS_NOTES/*.md | fzf --preview 'cat {}')
  [ -n "$file" ] && ${EDITOR:-vim} "$file"
}