Manage your backup retentions policies with retdo

You have folders with all your backups but storage capacity is starting to become low ? Need to clean up all these old files but still want to keep some of them just in case ? Then retdo is the perfect tool !

Retdo is a little script I wrote that allows administrators to clean up files on a custom retention basics.
Retdo can be used to implement production's backups retention plans.

retdo can resolve the following queries :

- I want to keep only one file per week if files are older than 3 months up to 6 months.
- I want to keep only one file per month if files are older than 6 months up to 1 year.
- I want files older than 1 year to be moved to another machine.
- I want a cup of tea (feature in progress)

Code and instructions are available for free at https://github.com/gcharot/retdo

Example : 

 Let's say I have my January daily backups in /data/backup/db/dbname :

#  ll /data/backup/db/dbname/   
 -rw-r--r-- 1 root root 0 Jan 1 12:00 jan01.tgz  
 -rw-r--r-- 1 root root 0 Jan 2 12:00 jan02.tgz  
 -rw-r--r-- 1 root root 0 Jan 3 12:00 jan03.tgz  
 -rw-r--r-- 1 root root 0 Jan 4 12:00 jan04.tgz  
 -rw-r--r-- 1 root root 0 Jan 5 12:00 jan05.tgz  
 -rw-r--r-- 1 root root 0 Jan 6 12:00 jan06.tgz  
 -rw-r--r-- 1 root root 0 Jan 7 12:00 jan07.tgz  
 -rw-r--r-- 1 root root 0 Jan 8 12:00 jan08.tgz  
 -rw-r--r-- 1 root root 0 Jan 9 12:00 jan09.tgz  
 -rw-r--r-- 1 root root 0 Jan 10 12:00 jan10.tgz  
 -rw-r--r-- 1 root root 0 Jan 11 12:00 jan11.tgz  
 -rw-r--r-- 1 root root 0 Jan 12 12:00 jan12.tgz  
 -rw-r--r-- 1 root root 0 Jan 13 12:00 jan13.tgz  
 -rw-r--r-- 1 root root 0 Jan 14 12:00 jan14.tgz  
 -rw-r--r-- 1 root root 0 Jan 15 12:00 jan15.tgz  
 -rw-r--r-- 1 root root 0 Jan 16 12:00 jan16.tgz  
 -rw-r--r-- 1 root root 0 Jan 17 12:00 jan17.tgz  
 -rw-r--r-- 1 root root 0 Jan 18 12:00 jan18.tgz  
 -rw-r--r-- 1 root root 0 Jan 19 12:00 jan19.tgz  
 -rw-r--r-- 1 root root 0 Jan 20 12:00 jan20.tgz  
 -rw-r--r-- 1 root root 0 Jan 21 12:00 jan21.tgz  
 -rw-r--r-- 1 root root 0 Jan 22 12:00 jan22.tgz  
 -rw-r--r-- 1 root root 0 Jan 23 12:00 jan23.tgz  
 -rw-r--r-- 1 root root 0 Jan 24 12:00 jan24.tgz  
 -rw-r--r-- 1 root root 0 Jan 25 12:00 jan25.tgz  
 -rw-r--r-- 1 root root 0 Jan 26 12:00 jan26.tgz  
 -rw-r--r-- 1 root root 0 Jan 27 12:00 jan27.tgz  
 -rw-r--r-- 1 root root 0 Jan 28 12:00 jan28.tgz  
 -rw-r--r-- 1 root root 0 Jan 29 12:00 jan29.tgz  
 -rw-r--r-- 1 root root 0 Jan 30 12:00 jan30.tgz  
 -rw-r--r-- 1 root root 0 Jan 31 12:00 jan31.tgz  

Now I need to free some space up so I'd like to keep only one file per week :

 # retdo -p /data/backup/db/dbname -r "*.tgz" -b 1 -e 92 -d 7  
 26 file(s) processed - 0 file(s) in error  
 # ll /data/backup/db/dbname  
 total 0  
 -rw-r--r-- 1 root root 0 Jan 5 12:00 jan05.tgz  
 -rw-r--r-- 1 root root 0 Jan 12 12:00 jan12.tgz  
 -rw-r--r-- 1 root root 0 Jan 19 12:00 jan19.tgz  
 -rw-r--r-- 1 root root 0 Jan 26 12:00 jan26.tgz  
 -rw-r--r-- 1 root root 0 Jan 31 12:00 jan31.tgz  

As you can see only one file per week (7 days) has been kept, 26 files were deleted.

This commands means  : "find all files matching regexp *.tgz in /data/backup/db/dbname which are older than 1 days up to 92 days (3 months) and keep only one file every week (7 days)"

Hope that helps !