Dumps given collections from source mongo db to destination mongo db

mongo_dump_collections.sh

# Dumps given collections from source mongo db to destination mongo db

# Source DB Creds
source_host=""
source_port=""
source_user=""
source_password=""
source_db=""

# Destination DB Creds
destination_host=""
destination_port=""
destination_user=""
destination_password=""
destination_db=""

# Collections to dump
collections=( "collection1" "collection2")

for c in ${collections[@]}
do
  mongodump --host $source_host --port $source_port -u $source_user -p $source_password --authenticationDatabase admin --db $source_db --collection $c --out - | gzip > dump_$c_`date "+%Y-%m-%d"`.gz
  gunzip -c dump_$c_`date "+%Y-%m-%d"`.gz > $c.bson
  mongorestore --host $destination_host --port $destination_port -u $destination_user -p $destination_password --authenticationDatabase admin --db $destination_db $c.bson
done