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NAME | SYNOPSIS | DESCRIPTION | COMMANDS | INTERACTIVE USE | EXAMPLE | SEE ALSO | GIT | COLOPHON |
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GIT-SHELL(1) Git Manual GIT-SHELL(1)
git-shell - Restricted login shell for Git-only SSH access
chsh -s $(command -v git-shell) <user>
git clone <user>@localhost:/path/to/repo.git
ssh <user>@localhost
This is a login shell for SSH accounts to provide restricted Git
access. It permits execution only of server-side Git commands
implementing the pull/push functionality, plus custom commands
present in a subdirectory named git-shell-commands in the user’s home
directory.
git shell accepts the following commands after the -c option:
git receive-pack <argument>, git upload-pack <argument>, git
upload-archive <argument>
Call the corresponding server-side command to support the
client’s git push, git fetch, or git archive --remote request.
cvs server
Imitate a CVS server. See git-cvsserver(1).
If a ~/git-shell-commands directory is present, git shell will also
handle other, custom commands by running
"git-shell-commands/<command> <arguments>" from the user’s home
directory.
By default, the commands above can be executed only with the -c
option; the shell is not interactive.
If a ~/git-shell-commands directory is present, git shell can also be
run interactively (with no arguments). If a help command is present
in the git-shell-commands directory, it is run to provide the user
with an overview of allowed actions. Then a "git> " prompt is
presented at which one can enter any of the commands from the
git-shell-commands directory, or exit to close the connection.
Generally this mode is used as an administrative interface to allow
users to list repositories they have access to, create, delete, or
rename repositories, or change repository descriptions and
permissions.
If a no-interactive-login command exists, then it is run and the
interactive shell is aborted.
To disable interactive logins, displaying a greeting instead:
$ chsh -s /usr/bin/git-shell
$ mkdir $HOME/git-shell-commands
$ cat >$HOME/git-shell-commands/no-interactive-login <<\EOF
#!/bin/sh
printf '%s\n' "Hi $USER! You've successfully authenticated, but I do not"
printf '%s\n' "provide interactive shell access."
exit 128
EOF
$ chmod +x $HOME/git-shell-commands/no-interactive-login
To enable git-cvsserver access (which should generally have the
no-interactive-login example above as a prerequisite, as creating the
git-shell-commands directory allows interactive logins):
$ cat >$HOME/git-shell-commands/cvs <<\EOF
if ! test $# = 1 && test "$1" = "server"
then
echo >&2 "git-cvsserver only handles \"server\""
exit 1
fi
exec git cvsserver server
EOF
$ chmod +x $HOME/git-shell-commands/cvs
ssh(1), git-daemon(1), contrib/git-shell-commands/README
Part of the git(1) suite
This page is part of the git (Git distributed version control system)
project. Information about the project can be found at
⟨http://git-scm.com/⟩. If you have a bug report for this manual page,
see ⟨http://git-scm.com/community⟩. This page was obtained from the
project's upstream Git repository ⟨https://github.com/git/git.git⟩ on
2018-02-02. (At that time, the date of the most recent commit that
was found in the repository was 2018-01-23.) If you discover any
rendering problems in this HTML version of the page, or you believe
there is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
Git 2.15.0.317.g14c63a 11/23/2017 GIT-SHELL(1)
Pages that refer to this page: git(1), githooks(5), gitcvs-migration(7), giteveryday(7)
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