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clj-ssh

SSH in clojure. Uses jsch. Provides a ssh function that tries to look similar to clojure.contrib.shell/sh.

Usage

The top level namespace is clj-ssh.ssh

(use 'clj-ssh.ssh)

There is a simple ssh function, which by default, will try and use a id_rsa key in your $HOME/.ssh directory.

(ssh "hostname" "ls")

Strict host key checking can be turned off.

(default-session-options {:strict-host-key-checking :no})

More advance usage is possible.

(with-ssh-agent []
  (add-identity "/user/name/.ssh/id_dsa")
  (let [session (session "localhost" :strict-host-key-checking :no)]
    (with-connection session
      (let [result (ssh session :in "echo hello" :result-map true)]
        (println (result :out)))
      (let [result (ssh session "/bin/bash" "-c" "ls" "/")]
        (println (second result))))))

SFTP is supported, both with a simple interface,

 (sftp "hostname" :put "/from/this/path" "to/this/path")

as well as more advanced usage.

(with-ssh-agent []
  (let [session (session "localhost" :strict-host-key-checking :no)]
    (with-connection session
      (let [channel (ssh-sftp session)]
        (with-connection channel
          (sftp channel :cd "/remote/path")
          (sftp channel :put "/some/file" "filename"))))))

Note that any sftp commands that change the state of the sftp session (such as cd) do not work with the simplified interface, as a new session is created each time.

FAQ

Q: What does "4: Failure @ com.jcraft.jsch.ChannelSftp.throwStatusError(ChannelSftp.java:2289)" during an sftp transfer signify?

A: Probably a disk full, or permission error.

Installation

Via maven and the clojars, or Leiningen.

License

Licensed under EPL

TODO

port forwarding environment setup sftp scp

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