Commands

Command	What it does
`feu share`	Shares this computer: shows the ID and password and waits
`feu connect <ID>`	Opens a live terminal on the other computer
`feu exec <ID> "<command>"`	Runs one command and returns its output and exit code
`feu screenshot <ID> <file.png>`	Saves a picture of the other computer’s screen
`feu put <ID> <local> <remote>`	Sends a file to the other computer
`feu get <ID> <remote> <local>`	Brings a file from the other computer
`feu log`	Shows this computer’s log
`feu mcp`	Starts the MCP server for AI agents

With feu connect you can also use the 9-digit number instead of the ID.

`feu share`

The ID is the same every time; the password changes on every share.
--yes approves every connection on its own. Use it only on computers you look after yourself.
--no-directory doesn’t publish the 9-digit number. People connect with the long ID.
--local uses only the local network.

The password isn’t shown while you type it. If it’s wrong it asks again, up to 5 times.
A full terminal: colors, accents, arrows, Ctrl+C and resizing the window. Type exit to leave.

The output goes to stdout and errors to stderr. FeuSh’s own notices also go to stderr.
The exit code is the remote command’s. If it doesn’t fit in a byte, or the command ended without one, it’s 1. If it was cut off for taking too long, 124.
--json returns everything in one line. Use it from programs, because codes 2 to 6 are also FeuSh’s own errors.
--timeout <seconds> cuts the command if it takes longer (1 to 600).
--password passes the password, but it can stay in the terminal history. FEU_PASSWORD is safer.
The output is cut at 1 MB each (stdout and stderr). A command can be up to 6000 bytes long.
On Windows it runs in PowerShell.

feu screenshot: --display N for another screen.
feu put: --force to overwrite a file that already exists.
feu log: shows the last 50 lines. --all shows everything and --json the raw lines.

Variable	What it does
`FEU_PASSWORD`	The password, so it isn’t typed or left in the history
`FEU_NO_DIRECTORY=1`	Same as `--no-directory`
`FEU_DIRECTORY`	Uses another directory for the short numbers (HTTPS only)
`FEU_DATA_DIR`	Changes the folder where FeuSh keeps its key and its log