backup

hello,
I would like to create a very simple script to backup my websites!!
this is what I normally do each line by hand

cd /home/virtual/domain1.com/var/www
tar czf domain1.tar.gz html
tar czf domain1_cgi-bin.tar.gz cgi-bin

cd /home/virtual/domain2.com/var/www
tar czf domain2.tar.gz html
tar czf domain2_cgi-bin.tar.gz cgi-bin

cd /home/virtual/domain3.com/var/www
tar czf domain3.tar.gz html
tar czf domain3_cgi-bin.tar.gz cgi-bin

is there a way to automate that process?
if so I want to run each line after the other,
 not all at the same time, I want to keep the server load
very low so when the first backup finishes I want
to do domain2 and so on, when the process finishes
I would like to receive an email sent by sendmail!

can someone please help me?
SabrinAsked:
Who is Participating?
 
John KawakamiConnect With a Mentor Commented:
The most straightforward way is to turn your commands into a script.  Paste the following into a shell window:

----------------------------------------------------------start--------
cat > backup.sh
#!/bin/sh
cd /home/virtual/domain1.com/var/www
tar czf domain1.tar.gz html
tar czf domain1_cgi-bin.tar.gz cgi-bin

cd /home/virtual/domain2.com/var/www
tar czf domain2.tar.gz html
tar czf domain2_cgi-bin.tar.gz cgi-bin

cd /home/virtual/domain3.com/var/www
tar czf domain3.tar.gz html
tar czf domain3_cgi-bin.tar.gz cgi-bin

echo backup ran
----------------------------------------------------------end--------

Then do this:
chmod u+x backup.sh

Then read the man page for cron and crontab, and add this line:

1 3 * * * /path/to/backup.sh

That should run the backup script at 3AM daily, and send you an email about it.  (Cron automatically sends emails.  If it doesn't read the cron manpage for info about how to do that.)

Rdiff is good if you want live copies of the backup files.

Also, look into archivers that can selectively update files within the backup archive.  Read the gnu tar man page.
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ssvlCommented:
first you have to create a script  

add all the above backup commands to that script ( by default script runs one command after one)

for eg you want to run the backup at 1 am every day.
run as root
#crontab -e

1 1 * * *  sh /path/to/script



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ppfoongCommented:

Create a script and put it in /usr/local/bin.

Let's call it backupsite.sh.

The content should be:

#!/bin/sh
tar czf $1.tar.gz /home/virtual/$1.com/var/www
tar czf $1_cgi-bin.tar.gz /home/virtual/$1.com/var/cgi-bin

Then, create another script, call it mybackup.sh.

#!/bin/sh
/usr/local/bin/backupsite.sh domain1
/usr/local/bin/backupsite.sh domain2
/usr/local/bin/backupsite.sh domain3


But as a better alternative, which is able to automate the backup process as well as send out email to you, you can make use of rdiff-backup.

http://www.nongnu.org/rdiff-backup/

The backup command will be (create the /backup directory first):

rdiff-backup --print-statistics /home/virtual /backup > /tmp/backup.statisticfile
mail youremail@address.com -s "Backup result" < /tmp/backup.statisticfile

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SabrinAuthor Commented:
thanks jk2001, will your code run the backups one by one ?
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SabrinAuthor Commented:
jk2001, when the tar is done with domain1 then it goes to domain2?
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John KawakamiCommented:
yes.  it's a "replay" of what you typed.

Also, before you put it in the cron, run the script from the command line and see that it works without errors.

ppfoong's solution is more flexible, but mine is the kind I'd normally use.  I prefer the literal code sometimes.
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