Export mongodb collections data and save as json

mongoexport

# Copyright (c) 2013 Swaroop SM <[email protected]>
# This program is free: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
 
# <http://www.gnu.org/licenses/>.

# This shell script is used for exporting records from MongoDB.
# It exports a collection's data into json and saves it in the directory.


#!/bin/bash


# Get current system date(DD_MM_YYYY).
d="`date +%d_%m_%Y`"

# Get current system time.
t="`date +%l_%M_%p`"

# The Database Name.
db_name=""

# Declare the collections you want to export. Eg.: ('collection1' 'collection2' 'collection3') - Note: "No Commas"
declare -a coll_name=()

if [ -d $d ]
then
  echo "$d directory already exists and entering in $d directory"
	cd $d
else
	mkdir $d
	echo "$d directory created and entering in $d directory"
	cd $d
fi

mkdir $t
cd $t


for i in ${coll_name[@]}
do
  file_name="$i.json"
	mongoexport -d $db_name -c $i -o $file_name
done