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Top Forums Shell Programming and Scripting Copying latest file into a folder Post 302299839 by TonyFullerMalv on Saturday 21st of March 2009 05:03:22 PM
Old 03-21-2009
$ ls -tr folderA | tail -1
Will give you the newest file.

So you could use:
Code:
LATEST=`ls -tr folderA | tail -1`
cp "folderA/${LATEST}" "folderB/${LATEST}".$$

Put the above in a script and call it from cron (if running once per minute is enough?) and $$ will be a different PID each time the script runs.

Or use a script something like, if the newest file in FolderA is going to change names each time:
Code:
PREVLATEST=""
while [ 1 ]; do
LATEST=`ls -tr folderA | tail -1`
if [ "${LATEST}" != "${PREVLATEST}" ]; then
  cp "folderA/${LATEST}" "folderB/${LATEST}"
  PREVLATEST="${LATEST}"
done

Call the script thus: nohup ./scriptname & and it would just keep running (you might want to put a sleep in their somewhere!

HTH

Tony

Last edited by TonyFullerMalv; 03-21-2009 at 06:08 PM..
 

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MTAIL(1)							   User Commands							  MTAIL(1)

NAME
mtail - tail variant designed for web developers monitoring logfiles SYNOPSIS
mtail [options] <file>... DESCRIPTION
MonkeyTail allows a user to tail multiple files on both local and remote hosts and clearly marks inactivity by putting 5 newlines in the output whenever a pause in output over 3 seconds is detected. MonkeyTail is implemented a fairly simple wrapper script around standard tail, ssh, and sudo. OPTIONS
-q Quiet mode --quiet " " -n Output the last N lines of each file before tailing (defaults to 0) <file>... Files to tail. These can specified in the following ways: @<groupname> - expands the group (from .mtailrc) to a list of files to tail <filename> - tails a local file. +<filename> - attempts to sudo and tail a local file (will prompt for pwd if required). <remotehost>:<filename> - attempts to invoke tail via ssh on a remote host. +<remotehost>:<filename> - attempts to invoke sudo tail via ssh on a remote host (will prompt for pwd if required). SEE ALSO
mtailrc(5), tail(1) AUTHOR
Martyn Smith <martyn@dollyfish.net.nz> mtail May 2008 MTAIL(1)
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