Add command that retreive data from backend and use zstd compression to transfer

bin/get

@@ -0,0 +1,35 @@
+ARCHIVE=false
+DESTINATION_LOCAL_DIR="./"
+
+if [[ "$1" == "--archive" ]]; then
+    ARCHIVE=true
+    shift
+fi
+
+if [[ $# -lt 2 ]]; then
+    echo "Usage: $0 [--archive] user@host remote_source_dir [local_destination_dir]"
+    exit 1
+fi
+
+USER_HOST="$1"
+REMOTE_USER="${USER_HOST%@*}"
+HOST="${USER_HOST#*@}"
+
+REMOTE_SOURCE_DIR="$2"
+if [[ -n "$3" ]]; then
+    DESTINATION_LOCAL_DIR="$3"
+fi
+
+echo "ARCHIVE=$ARCHIVE"
+echo "REMOTE_USER=$REMOTE_USER"
+echo "HOST=$HOST"
+echo "REMOTE_SOURCE_DIR=$REMOTE_SOURCE_DIR"
+echo "DESTINATION_LOCAL_DIR=$DESTINATION_LOCAL_DIR"
+
+
+# Example that works
+# ssh debian@gurgul.org "tar --zstd -cf - -C /home/debian .dat" | tar --zstd -xf - -C .
+# get debian@gurgul.org .dat
+
+TAR_COMMAND="tar --zstd -cf - -C /home/$REMOTE_USER $REMOTE_SOURCE_DIR"
+ssh $REMOTE_USER@$HOST $TAR_COMMAND | tar --zstd -xf - -C $DESTINATION_LOCAL_DIR