12-31-2008
Can DOS close an open file?
I'm trying to setup a cron job for my brother that goes out to the web and retrieves an excel file and overwrites the existing copy on his desktop. The problem I'm facing is I have to kill the process (excel.exe) if the file is open while the batch file runs, otherwise, it will create another copy with a 1 or 2 or 3, etc appended to the end of the filename. For example, the correct filename would be myfile.xls and it will create myfile.xls(1). So, I kill the process before it goes out to the web to retrieve the file. This works, but ideally, I would like to close that particular file without killing the process in the event he has other files in open state . . . is this possible?
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killall(1M) killall(1M)
NAME
killall - kill all active processes
SYNOPSIS
[signal]
DESCRIPTION
is a procedure used by to kill all active processes not directly related to the shutdown procedure.
is chiefly used to terminate all processes with open files so that the mounted file systems are no longer busy and can be unmounted. sends
the specified signal to all user processes in the system, with the following exceptions:
the process;
all processes (including background processes) associated with the terminal from which was invoked;
any process, if owned by
any process, if owned by
any process;
any process;
any process.
obtains its process information from and therefore may not be able to perfectly identify which processes to signal (see ps(1)).
If no signal is specified, a default of (kill) is used.
is invoked automatically by The use of is recommended over using by itself (see shutdown(1M)).
FILES
SEE ALSO
fuser(1M), kill(1), ps(1), shutdown(1M), signal(5).
STANDARDS CONFORMANCE
killall(1M)