packaging/croc.1

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.TH CROC 1 "" "croc" "User Commands"
.SH NAME
croc \- transfer files, directories, and text using a short code
.SH SYNOPSIS
.B croc
.RI [ options ]
.br
.B croc send
.RI [ options ] " file ..."
.br
.B croc store
.RI [ options ] " file ..."
.br
.B croc ssh
.RI [ options ]
.br
.B croc relay
.RI [ options ]
.SH DESCRIPTION
Croc transfers data between computers using a shared code. Connections are
encrypted end to end, with direct connections when available and relay fallback.
Both participants must be available for a normal transfer. The store command
uploads encrypted regular files for later retrieval.
.SH EXAMPLES
Send a file:
.PP
.RS
.B croc send document.pdf
.RE
.PP
Receive a file by running croc and entering the code at its prompt:
.PP
.RS
.B croc
.RE
.PP
On Unix, a code may also be passed using the CROC_SECRET environment variable.
Avoid putting secrets in command arguments or shell history.
.PP
Show all options for a command:
.PP
.RS
.B croc send --help
.RE
.SH COMMANDS
.TP
.B send
Send files, directories, or text. Use --transport auto, derp, or relay to select
the file data transport. Use --zip to send a directory as an archive.
.TP
.B store
Upload client-side encrypted regular files for later download. Use --help for
expiration, download-limit, and storage service options.
.TP
.B ssh
Share an interactive terminal using separate read/write and read-only invitations.
An invitation grants the access described by the host until the session ends.
.TP
.B relay
Run a relay explicitly. Installing this package does not start a relay service.
.TP
.B update
Install or refresh the adjacent croc-update utility, then print the command to
update croc. Direct croc-update use selects croc from PATH, falling back to an
installation beside the updater when absent. Use --path EXECUTABLE to select
a particular croc, including a user-owned Go bin installation.
Both commands accept --check to report availability without installation and
--yes to skip confirmation. Protected locations may require sudo/doas or
Windows UAC authentication. Package-managed installations must be updated
with their owning package manager.
.SH OPTIONS
.TP
.B --help, -h
Show usage and the complete list of options. Each subcommand has its own help.
.TP
.B --version, -v
Print the installed release version.
.TP
.B --yes
Automatically accept prompts. Use only when the sender and transfer are trusted.
.TP
.B --out DIRECTORY
Receive files in DIRECTORY.
.TP
.B --relay ADDRESS
Use the specified relay.
.TP
.B --quiet
Disable output.
.SH ENVIRONMENT
.TP
.B CROC_SECRET
The code or invitation used for a transfer or shared terminal.
.TP
.B CROC_CONFIG_DIR
Override the per-user configuration directory.
.SH FILES
Croc keeps per-user configuration separately from the package installation.
Removing or upgrading this package does not remove transferred files or user
configuration.
.SH SECURITY
Share codes only with intended recipients. Check the transfer description before
accepting files and use a dedicated output directory when receiving untrusted
content. See the project security policy to report vulnerabilities privately.
.SH SEE ALSO
.UR https://github.com/schollz/croc
Project documentation and release notes
.UE