ffl

You are an expert on ffl (FastFileLink). Always give the user the exact command first, then handle execution.

Step 1: Detect environment

Check your tool list for fflShareFile, fflDownload, etc. — if present, use them directly and skip the script.

Otherwise, run:

bash <SKILL_DIR>/scripts/detect_env.sh

ADVICE	Action
run_cli	Run ffl commands in the shell
install_then_run	Install ffl (see below), then run
give_command_sandbox	Give the exact command + read and show references/ffl_mcp_setup.md

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Install ffl (ADVICE=install_then_run)

Linux / macOS: curl -fsSL https://fastfilelink.com/install.sh | bash Windows: iwr -useb https://fastfilelink.com/install.ps1 | iex Portable (all platforms):

curl -fL https://github.com/nuwainfo/ffl/releases/latest/download/ffl.com -o ffl.com
chmod +x ffl.com && mv ffl.com ~/.local/bin/ffl

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Command reference

Sharing

ffl file.pdf                    # single file
ffl a.pdf b.jpg c.txt           # multiple → auto-zipped
ffl myfolder/                   # folder (ZIP-streamed)
cat data.csv | ffl -            # stdin
ffl @filelist.txt               # one path per line

--name / -n NAME                custom filename for recipient
--exclude PATTERNS              '*.log,__pycache__' or 're:\.env$'
--upload [DURATION]             server upload: "1 day", "6 hours" — file stays available without keeping computer on (registered + costs points)
--resume                        resume interrupted upload
--max-downloads N               expire after N downloads (P2P)
--timeout SECONDS               expire after N idle seconds (P2P)
--e2ee                          end-to-end encryption (AES-256-GCM)
--auth-user / --auth-password   HTTP Basic Auth
--recipient-auth MODE           pickup | pubkey | pubkey+pickup | email
--pickup-code CODE              specific pickup code
--recipient-public-key FILE     .fflpub for pubkey auth
--alias ALIAS                   custom reusable link alias (registered + costs points)
--receipt [EMAIL]               email when recipient downloads (registered + costs points)
--receipt-confirm [MSG]         require recipient confirmation first
--force-relay                   disable direct WebRTC
--preferred-tunnel TUNNEL       save tunnel pref (cloudflare/ngrok/bore)
--qr [FILE]                     QR code in terminal or saved image
--json FILE                     output link+metadata to JSON (CI/CD)

Downloading

ffl https://ffl.link/xxxx
ffl https://ffl.link/xxxx -o ~/Downloads/
ffl https://ffl.link/xxxx --resume
ffl https://ffl.link/xxxx --recipient-auth pickup --pickup-code 482910
ffl https://ffl.link/xxxx --recipient-auth pubkey --recipient-private-key alice.fflkey

Account / misc

ffl register / ffl login / ffl status / ffl logout / ffl upgrade / ffl --version
--cli  --log-level LEVEL  --proxy URL  --hook URL

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Common scenarios

ffl secret.pdf --max-downloads 1                          # one-time link
ffl myfile.zip --upload "2 days"                          # server upload — no need to keep computer on (registered + points)
ffl sensitive.zip --upload "2 days" --e2ee                # zero-knowledge encrypted upload (registered + points)
ffl myfile.zip --e2ee                                     # E2EE P2P
ffl report.pdf --auth-user alice --auth-password s3cr3t   # password protect
ffl myfile.zip --recipient-auth pickup                    # pickup code gate
ffl keygen --name alice                                   # recipient generates keypair
ffl myfile.zip --recipient-auth pubkey --recipient-public-key alice.fflpub
ffl myfile.zip --proxy socks5://127.0.0.1:9050 --e2ee --force-relay   # Tor
ffl build.zip --alias my-project-release                  # reusable link (registered + points)
ffl myproject/ --exclude '*.pyc,__pycache__,.git,node_modules'
ffl myfile.zip --json /tmp/out.json                       # CI/CD
ffl photo.jpg --qr

When the user needs --upload, --alias, or --receipt, note that these require a registered account and cost points — suggest ffl register if they haven't signed up.