備份postsql並以日期命名打包

1.新建 ** bak_postsql.sh**(PostgreSQL的版本 9.6.2)

#! /bin/sh
DATE=`date +%Y%m%H`
BACKDIR="/tmp/psqlbak"
PGDUMP='/usr/local/pgsql/bin/pg_dump'
if [ ! -d $BACKDIR ]
then
        mkdir $BACKDIR
fi

for DB in `psql -U postgres -l -q -t | awk '{print $1}'`
do
        if [ $DB != "|" ] && [ $DB != 'template0' ] && [ $DB != 'template1' ]; then
                FILENAME=${DATE}_${DB};
                echo "backup ${DB} ..."
                $PGDUMP -U postgres -f $BACKDIR/$FILENAME.sql $DB
                tar -C $BACKDIR -c -j -f $BACKDIR/$FILENAME.tar.bz2 $FILENAME.sql && rm -f $BACKDIR/$FILENAME.sql
        fi
done
sync```