Suspend ssh

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ssh 连接到一半，想回到本地，可以 suspend ssh 会话。
输入 ~+ ，回到本地：

jaseywang@A ~$: ~^Z  [suspend ssh]
[1]+  Stopped                 ssh jaseywang@192.168.1.2

jaseywang@B ~$:

回到本地了。

jaseywang@B ~$: jobs
[1]+  Stopped                 ssh jaseywang@192.168.1.2

继续进行远程会话：

jaseywang@B ~$: fg %1
ssh jaseywang@192.168.1.2

jaseywang@A ~$:

上面的 ~ 符号其实就是 -e 选项的默认参数：

-e escape_char
             Sets  the escape character for sessions with a pty (default: `~'
             ) .  The escape character is only recognized at the beginning of
             a  line.   The  escape character followed by a dot (`.')  closes
             the connection; followed by control-Z suspends  the  connection;
             and followed by itself sends the escape character once.  Setting
             the character to “none'' disables any  escapes  and  makes  the
             session fully transparent.