Here’s a script I wrote today to automatically execute a command over SSH using Putty’s PLINK and subsequently download a file using Putty’s PSFTP from a remote Linux host.
My exact use case is using this to execute a remote command that pulls a file from a Docker container to a temp directory. Then I download that file to my local Windows computer.
This pairs well with another blog post I wrote that allows you to automatically set up a public/private key pair and simply copy paste to a notepad located at the below link.
Automate everything – that’s my philosophy.
#Ensure nothing happens outside the directory this script is ran from
cd "$(dirname "$0")"
SCRIPT_DIRECTORY=$(pwd)
REMOTE_HOSTNAME="hostname.com"
REMOTE_USERNAME="username"
REMOTE_COMMAND="bash -c 'cd /remoteDirectory/subDirectory/ && sh getFromDockerContainer.sh'"
#Double slash is for git bash path conversion compatibility
REMOTE_FILENAME="//remoteDirectory/subDirectory/file.extension"
LOCAL_FILENAME="$SCRIPT_DIRECTORY/file.extension"
LOCAL_PRIVATE_KEY="$SCRIPT_DIRECTORY/private_key.ppk"
PLINK="/c/Program Files/PuTTY/plink.exe"
PSFTP="/c/Program Files/PuTTY/psftp.exe"
rm -f "$LOCAL_FILENAME"
"$PLINK" -i "$LOCAL_PRIVATE_KEY" "$REMOTE_USERNAME@$REMOTE_HOSTNAME" "$REMOTE_COMMAND"
TEMP_BATCH_FILE="$SCRIPT_DIRECTORY/psftp.batch"
echo "get $REMOTE_FILENAME" > "$TEMP_BATCH_FILE"
"$PSFTP" -i "$LOCAL_PRIVATE_KEY" -b "$TEMP_BATCH_FILE" "$REMOTE_USERNAME@$REMOTE_HOSTNAME"
rm -f "$TEMP_BATCH_FILE"
Cody's Blog 
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