diff --git a/entrypoint.sh b/entrypoint.sh
index b854a54..3eff722 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,25 +1,41 @@
 #!/bin/sh
 
+# Exit the script on any error, undefined variable, or in a pipeline.
+set -euo pipefail
+
+# Check if the remote path is empty.
 if [ -z "$(echo "$INPUT_REMOTE_PATH" | awk '{$1=$1};1')" ]; then
-    echo "The remote_path can not be empty. see: github.com/Burnett01/rsync-deployments/issues/44"
+    printf "Error: The remote_path cannot be empty. See: github.com/Burnett01/rsync-deployments/issues/44\n"
     exit 1
 fi
 
-# Start the SSH agent and load key.
-source agent-start "$GITHUB_ACTION"
-echo "$INPUT_REMOTE_KEY" | SSH_PASS="$INPUT_REMOTE_KEY_PASS" agent-add
+# Start the SSH agent and load the key.
+if ! source agent-start "$GITHUB_ACTION"; then
+    printf "Error: SSH agent could not be started.\n"
+    exit 1
+fi
 
-# Add strict errors.
-set -eu
+if ! echo "$INPUT_REMOTE_KEY" | SSH_PASS="$INPUT_REMOTE_KEY_PASS" agent-add; then
+    printf "Error: SSH key could not be added.\n"
+    exit 1
+fi
 
-# Variables.
-LEGACY_RSA_HOSTKEYS="-o HostKeyAlgorithms=+ssh-rsa -o PubkeyAcceptedKeyTypes=+ssh-rsa"
-LEGACY_RSA_HOSTKEYS=$([ "$INPUT_LEGACY_ALLOW_RSA_HOSTKEYS" = "true" ] && echo "$LEGACY_RSA_HOSTKEYS" || echo "")
+# Optionally add Legacy RSA Hostkeys.
+LEGACY_RSA_HOSTKEYS=""
+if [ "$INPUT_LEGACY_ALLOW_RSA_HOSTKEYS" = "true" ]; then
+    LEGACY_RSA_HOSTKEYS="-o HostKeyAlgorithms=+ssh-rsa -o PubkeyAcceptedKeyTypes=+ssh-rsa"
+fi
 
+# Define variables.
 SWITCHES="$INPUT_SWITCHES"
 RSH="ssh -o StrictHostKeyChecking=no $LEGACY_RSA_HOSTKEYS -p $INPUT_REMOTE_PORT $INPUT_RSH"
 LOCAL_PATH="$GITHUB_WORKSPACE/$INPUT_PATH"
 DSN="$INPUT_REMOTE_USER@$INPUT_REMOTE_HOST"
 
-# Deploy.
-sh -c "rsync $SWITCHES -e '$RSH' $LOCAL_PATH $DSN:$INPUT_REMOTE_PATH"
+# Perform deployment.
+if ! sh -c "rsync $SWITCHES -e '$RSH' $LOCAL_PATH $DSN:$INPUT_REMOTE_PATH"; then
+    printf "Error: Deployment failed.\n"
+    exit 1
+fi
+
+printf "Deployment completed successfully.\n"