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   ssh    ( 1 )

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ESCAPE CHARACTERS

When a pseudo-terminal has been requested, ssh supports a number of
     functions through the use of an escape character.

     A single tilde character can be sent as ~~ or by following the
     tilde by a character other than those described below.  The escape
     character must always follow a newline to be interpreted as
     special.  The escape character can be changed in configuration
     files using the EscapeChar configuration directive or on the
     command line by the -e option.

     The supported escapes (assuming the default '~') are:

     ~.      Disconnect.

     ~^Z     Background ssh.

     ~#      List forwarded connections.

     ~&      Background ssh at logout when waiting for forwarded
             connection / X11 sessions to terminate.

     ~?      Display a list of escape characters.

     ~B      Send a BREAK to the remote system (only useful if the peer
             supports it).

     ~C      Open command line.  Currently this allows the addition of
             port forwardings using the -L, -R and -D options (see
             above).  It also allows the cancellation of existing port-
             forwardings with -KL[bind_address:]port for local,
             -KR[bind_address:]port for remote and
             -KD[bind_address:]port for dynamic port-forwardings.
             !command allows the user to execute a local command if the
             PermitLocalCommand option is enabled in ssh_config(5).
             Basic help is available, using the -h option.

     ~R      Request rekeying of the connection (only useful if the peer
             supports it).

     ~V      Decrease the verbosity (LogLevel) when errors are being
             written to stderr.

     ~v      Increase the verbosity (LogLevel) when errors are being
             written to stderr.