Pickup the file based on the date in file name

Question

Dear all,
I have requirement like this.
EX:
I have file name called ABC_20110721.txt , i have to pickup that file today and should not delete it and should not mark as 'Read only'. We have to keep that file as is in FTP.
I will have another file tomorrow like ABC_20110722.txt , i have to pickup this file alone.
So that means date in the file name is dynamic based on the system date( current date interface runs on )
Please let me know how can we do this?
Regards

Answer 1

Hi ,
    You have not specified your operating system on which PI is running.  You need scripts to achieve this for you. In case you are using UNIX/Solaris/Linux server the following script "filename.sh" should run fine
lines=`expr 0 + 0`
maxlines=`expr 0 + 100`
while [ 1 -le 5 ] ; do
     d=`date +%G%m%d`
     count=`ls -1 | grep $d |wc -l`
     c=`expr $count + 0`
     while [ $c -gt 0 ]; do
          file=`ls -1 | grep $d |tail -$c |head -1`
          searchFile=`grep $file temp | head -1 | wc -l`
          searchFile=`expr $searchFile + 0`
          if [  $searchFile -eq 0 ]; then
               cp $file /home/anghosh0/sdn/f
               echo $file >>temp
               lines=`expr $lines + 1`
          fi
          c=`expr $c - 1`
     done     
     if [ $lines -gt $maxlines ]; then
            k=`date +%G%m`
          grep $k temp > t
          mv -f t temp
          lines=`expr 0 + 0`
     fi     
done
Say you are poutting the source files say ABC_20110721.txt,ABC_20110722.txt,ABC_20110725.txt  in a directory. Say the name of the directory is    "/usr/home/dx7" . You have to put this scipt "filename.sh" in  "usr/home/dx7".  Set the permission bits of this script to "777" or you can use command "chmod 777 filename.sh". This script will choose only the files for todays date as per server time. This script is running in an infinite loop. Thus whenever there is a new file in the directory it checks the file name, and if the name contains todays date, it puts the file in "home/anghosh0/sdn/f" directory from where PI server picks it up for reading. Please change the folder name according to your convinience. Now in the folder "/usr/home/dx7" you need to keep a file called "temp" this file will conatin only one word or any symbol say "hi". The use of temp is to collect all file names that the script has already transferred to PI folder. Thus if script has transferred file say "ABC_20110725.txt " and "DEF_20110725.txt ", then "temp" will have contents
hi
ABC_20110725.txt
DEF_20110725.txt
This prevents same file being put to PI source directory twice. Once temp reaches a maximum of 100 lines, this script clears the contents of temp automatically, except for the lines which belong to current year and current month. You can alter this value by altering the line "maxlines=`expr 0 + 100`" in the script shown above.
This is because the file grows in length over time.Please take help of you BASIS team to put this file in correct folder and run it. It is working fine in our Linux server. Please run this as a background process with this command "filename.sh &".
I think this will solve your problem. In case your operating system is windows then Please let me know I need to write batch file for the same.
regards
Anupam
Edited by: anupamsap on Jul 26, 2011 8:18 AM