Bash script to download a list of files from an AWS EC2 server.

scp_download.sh

#!/usr/bin/env bash


###############################################################################
##	Script to download a list of files from a remote server on AWS EC2.
##	Requirements are the pem file to connect to the server, the user, and
##	the servers AWS domain (i.e. EC2 domain name). The goal is to build the
##	SSH connection string and pass it to SCP.
##
##	The SSH connection string for the EC2 instance should be in the format:
##	"ssh -i /path/to/pem user@ec2-xx-xx-xxx-xxx.compute-1.amazonaws.com"
##
##	Note that this will download the file to the current directory (note the 
##	value of DESTINATION when set to ".")
###############################################################################


# configure these
USER="ubuntu"
HOST="ec2-xx-xx-xxx-xxx.compute-1.amazonaws.com"
PEM="/PATH/TO/THE/PROPER/PEM/FILE"
SOURCE="/HOME/DIRECTORY/LOCATION"
DESTINATION="."


# update to proper file names
FILES_ARRAY=(
	"FILE_TO_DOWNLOAD_1.sql" 
	"FILE_TO_DOWNLOAD_2.sql" 
	"FILE_TO_DOWNLOAD_3.sql" 
)


# general notification when something fails
function die() {
	echo "$1"
	exit 1
}


# build the main connection strings
COMMAND_STR="${PEM} ${USER}@${HOST}:${SOURCE}"


counter=0

# loop through array of files and download each
for str in ${FILES_ARRAY[@]}; do
	echo "- downloading '$str'"
	scp -i ${COMMAND_STR}/${str} ${DESTINATION} || die "*** failed to download ${str}***"

	counter=$((counter + 1))
done

echo "\nFinished. Downloaded ${counter} files.\n"