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Full Discussion: Help with Shell Script automation
Top Forums Shell Programming and Scripting Help with Shell Script automation Post 302381928 by jim mcnamara on Monday 21st of December 2009 12:01:15 PM
Old 12-21-2009
The safest thing to do is change process X, do not create a process Y.

Code:
date_current=`date +%m%d%y`
java -Xms512m -Xmx512m com.mainloader.databaseLoader S 12 F > file.log.$date1 fname="file.log.$date1"
mv $fname /path/to/new/${fname}

Otherwise you are stuck with a kludge-y kind of thing where you call lsof or fuser repeatedly until you see that the logfile is no long open. See the man page on your system

example:
Code:
lsof /path/to/file.log.$date1
while [[ $? -ne 0 ]]
do
       sleep 10
       lsof /path/to/file.log.$date1
done

This does a lot of pointless polling. If your system has inotify (Linux/GNU derivative) you can call inotify to see when a file is closed. Same polling problem though.
 

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LEARN ABOUT X11R4

inotify_rm_watch

INOTIFY_RM_WATCH(2)					     Linux Programmer's Manual					       INOTIFY_RM_WATCH(2)

NAME

       inotify_rm_watch - remove an existing watch from an inotify instance

SYNOPSIS

       #include <sys/inotify.h>

       int inotify_rm_watch(int fd, int wd);

DESCRIPTION

       inotify_rm_watch()  removes the watch associated with the watch descriptor wd from the inotify instance associated with the file descriptor
       fd.

       Removing a watch causes an IN_IGNORED event to be generated for this watch descriptor.  (See inotify(7).)

RETURN VALUE

       On success, inotify_rm_watch() returns zero.  On error, -1 is returned and errno is set to indicate the cause of the error.

ERRORS

       EBADF  fd is not a valid file descriptor.

       EINVAL The watch descriptor wd is not valid; or fd is not an inotify file descriptor.

VERSIONS

       Inotify was merged into the 2.6.13 Linux kernel.

CONFORMING TO

       This system call is Linux-specific.

SEE ALSO

       inotify_add_watch(2), inotify_init(2), inotify(7)

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

Linux								    2017-09-15						       INOTIFY_RM_WATCH(2)
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