备份bash脚本和tar排除日志和目录

Question

Following script takes the backup of all websites which are in directory /var/www/websites and create .tar.gz for each individual website at /var/backup and works fine

WEBROOT="/var/www/websites"
BAKPATH="/var/backup"

for vhost in "$WEBROOT"/*; do
  test -d "$vhost" || continue
  base=$(basename "$vhost")
  ( cd "$WEBROOT" && tar -cpzf "$BAKPATH/$(date +%F)_$base.tar.gz" "$base" )
done

But, I need to exclude logs folder and one website from backup, like we normally exclude with tar as

--exclude=$BAKPATH/*/logs or --exclude=$BAKPATH/website2.com

I am not sure where to put that in? I tried following but it does not work

WEBROOT="/var/www/websites"
BAKPATH="/var/backup"

for vhost in "$WEBROOT"/*; do
  test -d "$vhost" || continue
  base=$(basename "$vhost")
  ( cd "$WEBROOT" && tar -cpzf "$BAKPATH/$(date +%F)_$base.tar.gz --exclude=$BAKPATH/*/logs --exclude=$BAKPATH/website2.com" "$base")
done

Where should I put

--exclude=$BAKPATH/*/logs --exclude=$BAKPATH/website2.com

so it take affect?

Answer 1

$BAKPATH is the place where the target of the backup process (the archive, the *.tgz file) is supposed to be created. If you want to exclude something from the source , you have to specify the paths in the source :

tar -cpz --exclude "$base/logs" \
    -f "$BAKPATH/$(date +%F)_$base.tar.gz" "$base"

This will exclude all files which match the glob pattern $base/logs (and everything below).

According to your question, I assume that you want to exclude eg a file named /var/www/websites/cardboardwebshop/logs/access.log . If this is not correct, please comment, maybe we can figure out what exactly you need to write to exclude what you want to exclude.

Answer 2

After getting some feedback from different sources, I was able to achieve this by adding following lines with if condition

##ADD THIS
  if [[ $vhost = *"website1.com"* || $vhost = *"website2.co.uk"* ]]; then
  continue
  fi
##

So, finally the script looks like this

WEBROOT="/var/www/websites"
BAKPATH="/var/backup"

for vhost in "$WEBROOT"/*; do
  test -d "$vhost" || continue
  if [[ $vhost = *"website1.com"* || $vhost = *"website2.co.uk"* ]]; then
  continue
  fi
  base=$(basename "$vhost")
  ( cd "$WEBROOT" && tar -cpzf "$BAKPATH/$(date +%F)_$base.tar.gz" "$base" )
done