diff --git a/docs/binary.md b/docs/binary.md
index 68fcd89..b6c44e8 100644
--- a/docs/binary.md
+++ b/docs/binary.md
@@ -2,7 +2,7 @@
 
 ## Setup
 
-1. Install `make` and `wget` if not already
+1. Install `bash`, `make` and `wget` if not already
 
 2. Run setup script
 
@@ -19,12 +19,6 @@
    export SETUP_CODEMIRROR=0
    ```
 
-   Setup:
-
-   ```shell
-   wget -qO- https://6uo.me/go-proxy-setup-binary | sudo bash
-   ```
-
    What it does:
 
    - Download source file and binary into /opt/go-proxy/$VERSION
diff --git a/setup-binary.sh b/setup-binary.sh
index 305eded..d01a146 100644
--- a/setup-binary.sh
+++ b/setup-binary.sh
@@ -1,9 +1,10 @@
-#!/bin/sh
+#!/bin/bash
 set -e
 REPO_URL=https://github.com/yusing/go-proxy
 BIN_URL="${REPO_URL}/releases/download/${VERSION}/go-proxy"
 SRC_URL="${REPO_URL}/archive/refs/tags/${VERSION}.tar.gz"
 APP_ROOT="/opt/go-proxy/${VERSION}"
+LOG_FILE="/tmp/go-proxy-setup.log"
 
 if [ -z "$VERSION" ] || [ "$VERSION" = "latest" ]; then
     VERSION_URL="${REPO_URL}/raw/main/version.txt"
@@ -30,28 +31,28 @@ fi
 dl_source() {
     cd /tmp
     echo "Downloading go-proxy source ${VERSION}"
-    wget -c "${SRC_URL}" -O go-proxy.tar.gz 2>&1
-    echo "Done"
+    wget -c "${SRC_URL}" -O go-proxy.tar.gz &> $LOG_FILE
     if [ $? -gt 0 ]; then
         echo "Source download failed, check your internet connection and version number"
         exit 1
     fi
+    echo "Done"
     echo "Extracting go-proxy source ${VERSION}"
-    tar xzf go-proxy.tar.gz 2>&1
+    tar xzf go-proxy.tar.gz &> $LOG_FILE
     if [ $? -gt 0 ]; then
         echo "failed to untar go-proxy.tar.gz"
         exit 1
     fi
     rm go-proxy.tar.gz
-    mkdir -p $(dirname $APP_ROOT)
-    mv "go-proxy-${VERSION}" $APP_ROOT
-    cd $APP_ROOT
+    mkdir -p "$(dirname "${APP_ROOT}")"
+    mv "go-proxy-${VERSION}" "$APP_ROOT"
+    cd "$APP_ROOT"
     echo "Done"
 }
 dl_binary() {
     mkdir -p bin
     echo "Downloading go-proxy binary ${VERSION}"
-    wget -c "${BIN_URL}" -O bin/go-proxy 2>&1
+    wget -c "${BIN_URL}" -O bin/go-proxy &> $LOG_FILE
     if [ $? -gt 0 ]; then
         echo "Binary download failed, check your internet connection and version number"
         exit 1
@@ -60,14 +61,14 @@ dl_binary() {
     echo "Done"
 }
 setup() {
-    make setup
+    make setup &> $LOG_FILE
     if [ $? -gt 0 ]; then
         echo "make setup failed"
         exit 1
     fi
     # SETUP_CODEMIRROR = 1
     if [ "$SETUP_CODEMIRROR" != "0" ]; then
-        make setup-codemirror || echo "make setup-codemirror failed, ignored"
+        make setup-codemirror &> $LOG_FILE || echo "make setup-codemirror failed, ignored"
     fi
 }
 
@@ -82,12 +83,12 @@ if ! command -v systemctl is-system-running > /dev/null 2>&1; then
     echo "systemctl not found, skipping systemd setup"
     exit 0
 fi
-systemctl-failed() {
+systemctl_failed() {
     echo "Failed to enable and start go-proxy"
     systemctl status go-proxy
     exit 1
 }
-mkdir -p /etc/systemd/system
+echo "Setting up systemd service"
 cat <<EOF > /etc/systemd/system/go-proxy.service
 [Unit]
 Description=go-proxy reverse proxy
@@ -107,6 +108,7 @@ TimeoutStopSec=5s
 [Install]
 WantedBy=multi-user.target
 EOF
-systemctl daemon-reload || systemctl-failed
-systemctl enable --now go-proxy || systemctl-failed
+systemctl daemon-reload &>$LOG_FILE || systemctl_failed
+systemctl enable --now go-proxy &>$LOG_FILE || systemctl_failed
+echo "Done"
 echo "Setup complete"
\ No newline at end of file