cheat_sheet/data/commands.json

{
  "linux": [
    {
      "command": "du -sh --block-size=1M /path/to/directory",
      "desc": "Show size of directory in MB (Change M to G for GB)"
    },
    {
      "command": "df -h /path/to/mount",
      "desc": "Show statistics about a drive (remove path for all)"
    },
    {
      "command": "free -h",
      "desc": "Display memory usage in human-readable units"
    },
    {
      "command": "find /path/to/directory -type f | wc -l",
      "desc": "Show amount of files in directory and its sub-directories"
    },
    {
      "command": "find /path/to/directory -type f -exec grep -n 'search' {} +",
      "desc": "Print all rows together with the filenames and rows a string is found in"
    },
    {
      "command": "ss -tuln",
      "desc": "Show open ports on current host (linux)"
    },
    {
      "command": "echo Hostname: $(hostname); echo Local_IP: $(hostname -i | awk '{print $1}'); echo Default_Gateway: $(ip route | awk '/default/ {print $3}')",
      "desc": "Print IP Address, Hostname, Default Route"
    },
    {
      "command": "tar -czf backup.tgz /path/to/dir",
      "desc": "Create a quick compressed backup of a directory"
    },
    {
      "command": "find . -type f -iname 'myfile.txt'",
      "desc": "Search for a specific file in folder (recursive, case-insensitive (use -name for case sensitive))"
    },
    {
      "command": "zip -r folder_name.zip folder_name",
      "desc": "Zip a folder and all of its contents into a archive"
    },
    {
      "command": "ln -s /path/to/file file",
      "desc": "Create a symbolic link pointing to a file on the system"
    },
  ],
  "python": [
    {
      "command": "python3 -m venv .venv && source .venv/bin/activate",
      "desc": "Initialise a (simple) .venv and activate it"
    },
    {
      "command": "python -m http.server 8000",
      "desc": "Serve the current directory over HTTP on port 8000"
    },
    {
      "command": "python -m pip install --upgrade pip",
      "desc": "Upgrade pip to the latest version"
    },
    {
      "command": "python -m pip freeze > requirements.txt",
      "desc": "Export current Python dependencies to requirements.txt"
    },
    {
      "command": "pip install jupyterlab ipykernel && python3 -m ipykernel install --user --name=project-name",
      "desc": "Install and initialise the kernel to use in jupyter"
    },
    {
      "command": "jupyter lab",
      "desc": "Start Jupyiter Lab"
    }
  ],
  "go": [
    {
      "command": "go mod init github.com/username/projectname",
      "desc": "Initialise a go project and create a mod file"
    },
    {
      "command": "go test ./...",
      "desc": "Run all Go tests recursively"
    },
    {
      "command": "go test -bench=. ./...",
      "desc": "Run all benchmarks in the module"
    },
    {
      "command": "go list -m all",
      "desc": "List all resolved module dependencies"
    },
    {
      "command": "go get github.com/some/package@latest",
      "desc": "Add dependencies"
    },
    {
      "command": "go mod tidy",
      "desc": "Tidy up unused dependencies"
    },
    {
      "command": "go mod verify",
      "desc": "Verify Integrity"
    },
    {
      "command": "go run <target_file_or_folder>",
      "desc": "Run a main.go file"
    },
    {
      "command": "go build -o bin/<bin_name> <target_file_or_folder>",
      "desc": "Build an executable"
    },
    {
      "command": "GOOS=linux GOARCH=amd64 go build -o bin/myprogram.exe main.go",
      "desc": "Cross-compile for Linux (alt. windows, darwin (arm64 / amd64))"
    }
  ],
  "git": [
    {
      "command": "git checkout -b branch_name",
      "desc": "Create and checkout a new branch"
    },
    {
      "command": "git rebase <target_branch>",
      "desc": "Rebase commits from source branch to target branch"
    },
    {
      "command": "git merge <target_branch>",
      "desc": "Merge commits from another branch into the one command is run on"
    },
    {
      "command": "git stash push -m 'Message/Stash Name'",
      "desc": "Stash changes without commiting"
    },
    {
      "command": "git stash pop",
      "desc": "Stash changes without commiting (add stash@{n} for specific stash from 'git stash list'"
    },
    {
      "command": "git reflog",
      "desc": "Show history of all changes"
    },
    {
      "command": "git status",
      "desc": "See what is changed right now"
    },
    {
      "command": "git remote set-url origin git@github.com:username/repo.git",
      "desc": "Change origin url (example from https to ssh)"
    }
  ],
  "gpg": [
    {
      "command": "gpg --list-keys",
      "desc": "List all imported keys"
    },
    {
      "command": "gpg --import pubkey.asc",
      "desc": "Import a downloaded key"
    },
    {
      "command": "gpg --encrypt --sign --recipient RECIPIENT_KEY_ID message.txt",
      "desc": "Encrypts message.txt with the recipients key into message.txt.gpg"
    },
    {
      "command": "gpg --decrypt message.asc",
      "desc": "Decrypt a file with a encrypted message"
    },
    {
      "command": "gpg --export -a KEY_ID > publickey.asc",
      "desc": "Export a existing (public) key into a file"
    },
    {
      "command": "gpg --fingerprint KEY_ID",
      "desc": "Check fingerprint of key"
    },
    {
      "command": "gpg --sign-key RECIPIENT_KEY_ID",
      "desc": "Sign a key"
    },
    {
      "command": "gpg --keyserver hkps://keys.openpgp.org --send-keys RECIPIENT_KEY_ID",
      "desc": "Send a signed key to a keyserver"
    }
  ],
  "security": [
    {
      "command": "firejail --private --net=none <application>",
      "desc": "Run a command in a sandbox with no access to the home dir or the network"
    },
    {
      "command": "nmap -p- -A <ip-address>",
      "desc": "Scan a IP Address for open ports and os information"
    },
    {
      "command": "nmap -p <port-num> -sV <ip-address>",
      "desc": "Scan a specific port to see more information about service running"
    },
    {
      "command": "nmap -p <port-num> --script ssh* <ip-address>",
      "desc": "Scan a ssh port for all ssh relavant info"
    },
    {
      "command": "chkrootkit / rkhunter --check / lynis audit system",
      "desc": "System checking tools for malware and auditing on linux"
    },
    {
      "command": "arch-audit",
      "desc": "Audit installed packages for known vulnerabilities (pacman)"
    }
  ]
}