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PostgreSQL Physical Backup Script With Replication And Without Replication

Here we written the script for taking postgresql physical backup with replication and witout replication
Backup scripts for without replication:
psql -U postgres -c "SELECT pg_start_backup('base backup')"
if [ "$?" != "0" ]; then
   echo Broken
   exit 1
fi
tar cfz /some/where/base.tar.gz /var/lib/pgsql/data --exclude "*pg_xlog*"
if [ "$?" != "0" ]; then
   echo Broken
   psql -U postgres -c "SELECT pg_stop_backup()"
   exit 1
fi
psql -U postgres -c "SELECT pg_stop_backup()"
if [ "$?" != "0" ]; then
   echo Broken
   exit 1
fi                                                        
Backup scripts for with replication:
And when you're setting up a replication slave, it might look something like this:
psql -U postgres -h masterserver -c "SELECT pg_start_backup('replication base', 't')"
if [ "$?" != "0" ]; then
   echo Broken
   exit 1
fi
rsync -avz --delete --progress postgres@masterserver:/var/lib/pgsql/data /var/lib/pgsql
if [ "$?" != "0" ]; then
   echo Broken
   psql -U postgres -c "SELECT pg_stop_backup()"
   exit 1
fi
psql -U postgres -c "SELECT pg_stop_backup()"
if [ "$?" != "0" ]; then
   echo Broken
   exit 1
fi



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