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Top Forums Shell Programming and Scripting How 2 run same command across all open terminals Post 302520966 by agama on Monday 9th of May 2011 10:45:32 PM
Old 05-09-2011
To my knowledge you'll have to manually source the rc file in each running instance of the shell.

If you want to be clever, and anticipate doing this often enough, you could put the following command into your .bashrc file:

Code:
trap ". $HOME/.bashrc" 16

Once that is set in a running instance of bash, you then only need to send a SIGUSR1 (16) to the process and it will resource the .bashrc file. You could write a small script that susses out all of your running login/interactive shells and executes the necessary kill -16 command. You could pick another signal, but this seems just fine for this case.

Hope this helps some.

Last edited by agama; 05-09-2011 at 11:46 PM.. Reason: typo
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kill(1) 						      General Commands Manual							   kill(1)

Name
       kill - send a signal to a process

Syntax
       kill [-sig] processid...
       kill -l

Description
       The command sends the TERM (terminate, 15) signal to the specified processes.  If a signal name or number preceded by `-' is given as first
       argument, that signal is sent instead of terminate.  For further information, see

       The terminate signal kills processes that do not catch the signal; `kill -9 ...' is a sure kill, as the KILL (9) signal cannot  be  caught.
       By convention, if process number 0 is specified, all members in the process group (that is, processes resulting from the current login) are
       signaled.  This works only if you use and not if you use To kill a process it must either belong to you or you must be superuser.

       The process number of an asynchronous process started with `&' is reported by the shell.  Process numbers can also be  found  by  using	It
       allows job specifiers ``%...''  so process ID's are not as often used as arguments.  See for details.

Options
       -l   Lists  signal  names.  The signal names are listed by `kill -l', and are as given in /usr/include/signal.h, stripped of the common SIG
	    prefix.

See Also
       csh(1), ps(1), kill(2), sigvec(2)

																	   kill(1)
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