![]() But how do we know the file’s done being written to the directory? And what about the Folder Sweep capability, that option where you can “Scan for files every…” so often? Let’s look at that more closely.ĮFT is able to know that the file is done being added to the directory when the file handle is closed. Something new has shown up in the directory, so there’s something we should do with it. A file has been renamed within the directoryīy far the most common scenario is to leverage the “if File Change does equal to added” condition.A file has been removed from the directory.If two thousand files are added to a directory, still each file being added is handled on its own.ĮFT Enterprise provides three (3) different triggers for reacting to changes to a folder: If two files are added to a directory, each is its own instance and handled independently from the other. Instead, use the File Upload event.īefore we get into the details, remember that each instance of change in a folder is its own discrete event. It is not recommended to use the Folder Monitor event for scanning files with the Content Integrity Control Action (sending to an ICAP server for scanning). With that in mind, there may be some question regarding what happens with the context variables and how to properly react to some changes. In many real-world implementations, Folder Monitors play a major role in both integration with application servers as well as reacting to human processes, where either way data will be deposited in a particular directory somewhere on the network. The advantage of this methodology is you aren't checking the directory every 30 minutes but rather you are checking it 30 minutes after the last changes to the directory.THE INFORMATION IN THIS ARTICLE APPLIES TO:ĮFT Enterprise offers a powerful and efficient capability to monitor folders for changes: files being added, removed, or renamed within a folder. You would call the script from a place like /etc/rc.local so it runs when machine is booted. Send email and loop back to wait 30 minutes again. No? We got here because 30 minutes expired.Yes? We got here because directory changed.Wait 30 minutes or until directory changes.The psuedo-code for an appropriate script would be: You can install it with the command: sudo apt install inotify-tools But what if you have a script that empties the directory periodically? Then the script could miss the fact a file went into the directory 5 minutes ago but was processed and taken out.Īnother option is using the inotifywait command written in highly efficient C language for the express purposes of monitoring file and directory creation and modification. The answers so far assume that files only go into a directory and never go out. Save the file (saving adds the crontab) and you're done. Then, run crontab -e and add this line: */30 * * * * /home/techie/bin/watch.sh Mail save that as ~/bin/watch.sh and make it executable ( chmod a+x ~/bin/watch.sh). Mail you don't want to run a script for ever like that, you could instead write one that checks the timestamps and call the script every 30 minutes: #!/bin/bash ![]() ![]() If ] thenĮcho "No new files added since $(date -d '- 30 min')" | # If the newest file is older than half an hour # Is this file newer than the current newest? # Get the file's modification time in seconds since the epoch # Get the current time in seconds since the epoch # to ensure we wait a half hour before the first check This is done at the beginning of the loop It would probably be a better idea to take the timestamp of the newest file and check if it was last modified more than 30 minutes ago: #!/bin/bash So if one file is deleted but another one added, it will think there are no new files. Now, that is a very naive approach and simply counts the number of files every 30 minutes. You might be able to do something as simple as: #!/bin/bashĮcho "No new files added" | mail that script as ~/bin/watch.sh or whatever you like, make it executable ( chmod a+x ~/bin/watch.sh) and run it giving it the target directory as an argument: watch.sh /path/to/dir
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