tar.gz backups not working

krogerssolar · 05-16-2012, 11:30 AM

Hi all i have a Fedora Core 15 system setup with websites on it i have it backing up a few directory's when i try to make a bash script to scp over to a backup server my tar.gz files come out as 4.0K instead of a few Gigabytes any ideas here am i missing something commands are below

#! /bin/bash
cd /media/backups1/websites/
tar -pczf `date +%Y%m%d`home.tar.gz `date +%Y%m%d`home/
tar -pczf `date +%Y%m%d`html2.tar.gz `date +%Y%m%d`html2/
tar -pczf `date +%Y%m%d`moodledata.tar.gz `date +%Y%m%d`moodledata/
scp -r /media/backups1/websites/`date +%Y%m%d`home.tar.gz root@serverip:/media/backups
scp -r /media/backups1/websites/`date +%Y%m%d`html2.tar.gz root@serverip:/media/backups
scp -r /media/backups1/websites/`date +%Y%m%d`alldatabase.sql root@serverip:/media/backups
scp -r /media/backups1/websites/`date +%Y%m%d`moodledata.tar.gz root@serverip:/media/backups

es0teric · 05-16-2012, 12:08 PM

Not sure what's causing that problem, but I'd recommend only doing the timestamp calculation once at the beginning and storing the result in a variable.

alinas · 05-16-2012, 03:57 PM

Did you look at your back up files?
EG:

Code:

tar tzvf `date +%Y%m%d`home.tar.gz

- that might give you a clue...

colucix · 05-16-2012, 04:21 PM

Code:

tar -pczf `date +%Y%m%d`home.tar.gz `date +%Y%m%d`home/

I don't understand the part highlighted in blue: have you got a directory whose name is

Code:

20120515home/
20120516home/
20120517home/
...

every day? Once you have solved the tar creation issue, you can spare the scp commands by feeding the remote machine through standard input over ssh, e.g.

Code:

tar -cpzf - /source_dir | ssh user@host "cat > /destination/$(date +%Y%m%d)_source_dir.tar.gz"

Hope this helps.

krogerssolar · 05-16-2012, 04:27 PM

colucix the highlighted blue part is created in another script when the main home folders and web directories are backed up

it looks like this im still working on it looks like my size issue has come back where its doubling my size i think i missed a cp command cp -vrfp /home/ /media/backups1/websites/`date +%Y%m%d`home/