In ~/.ssh/config
you can use the LocalCommand
directive to execute a local command whenever you connect to a remote machine via SSH. But how do I execute a command when I exit an SSH connection? It seems that *.bashrc/.bash_profile* files are not sourced when connection ends or is closed.
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This question is closely related to unix.stackexchange.com/questions/40830/…– BananguinCommented Jun 16, 2012 at 5:00
2 Answers
It's not specified in the question if you want this executed on the local or remote machine. It's also not specified which shell is present on either machine, so I'm assuming bash
for both.
If you want to execute it on the remote machine, look at ~/.bash_logout
, which is executed when a login shell logs out gracefully. From man bash
:
When a login shell exits, bash reads and executes commands from the file
~/.bash_logout
, if it exists.
You can do a test in ~/.bash_logout
to check if the shell being logged out of is an SSH session, something like the following should work:
if [[ $SSH_CLIENT || $SSH_CONNECTION || $SSH_TTY ]]; then
# commands go here
fi
If you want to execute it on the local machine, create a function wrapper around ssh
. Something like the following should work:
ssh() {
if command ssh "$@"; then
# commands go here
fi
}
That may be too simple for your needs, but you get the idea.
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I needed the command to be executed on the local machine. Thanks for the suggestion. It works smoothly. Commented Jun 18, 2012 at 16:51
You are on the right track. If the ssh
session is a login shell (instead of a remote command), bash
will source /etc/bash.logout
and ~/.bash_logout
when you exit the shell.
If you want to execute a remote command, then you can force bash
to be a login shell. The LocalCommand
could be similar to this:
bash -l -c /execute/some/command
From man 1 bash
-c string If the -c option is present, then commands are read from
string. If there are arguments after the string, they are assigned to
the positional parameters, starting with $0.
-l Make bash act as if it had been invoked as a login shell
When a login shell exits, bash reads and executes commands from the
files ~/.bash_logout and /etc/bash.bash_logout, if the files exists.
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1Not if executing a remote command (If command is specified, it is executed on the remote host instead of a login shell.). However, reading the OP question closer, it appears he wants something to happen locally, so I think you answer is more appropriate.– George MCommented Jun 15, 2012 at 19:47