Added linux setup script

Author: thevillagehacker

utils/setup.sh

@@ -0,0 +1,96 @@
+#!/usr/bin/env bash
+set -e
+
+GO_INSTALL_DIR="/usr/local"
+GO_PROFILE_SNIPPET='
+# >>> Go setup >>>
+export GOPATH="$HOME/go"
+export PATH="$PATH:/usr/local/go/bin:$GOPATH/bin"
+# <<< Go setup <<<
+'
+
+detect_arch() {
+    case "$(uname -m)" in
+        x86_64) echo "amd64" ;;
+        aarch64 | arm64) echo "arm64" ;;
+        *) echo "unsupported"; exit 1 ;;
+    esac
+}
+
+install_go() {
+    if command -v go >/dev/null 2>&1; then
+        echo "[=] Go already installed: $(go version)"
+        return
+    fi
+
+    echo "[+] Installing latest Go..."
+
+    ARCH=$(detect_arch)
+    GO_TARBALL=$(curl -s https://go.dev/VERSION?m=text | head -n 1)
+    DOWNLOAD_URL="https://go.dev/dl/${GO_TARBALL}.linux-${ARCH}.tar.gz"
+
+    echo "[+] Downloading $DOWNLOAD_URL"
+    curl -LO "$DOWNLOAD_URL"
+
+    echo "[+] Removing old Go (if any)"
+    sudo rm -rf ${GO_INSTALL_DIR}/go
+
+    echo "[+] Extracting Go..."
+    sudo tar -C ${GO_INSTALL_DIR} -xzf "${GO_TARBALL}.linux-${ARCH}.tar.gz"
+
+    rm -f "${GO_TARBALL}.linux-${ARCH}.tar.gz"
+
+    echo "[+] Configuring environment..."
+
+    for shellrc in "$HOME/.bashrc" "$HOME/.zshrc"; do
+        [ -f "$shellrc" ] || touch "$shellrc"
+        if ! grep -q "Go setup" "$shellrc"; then
+            echo "$GO_PROFILE_SNIPPET" >> "$shellrc"
+            echo "[+] Updated $shellrc"
+        else
+            echo "[=] Go config already exists in $shellrc"
+        fi
+    done
+
+    export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin
+
+    echo "[+] Go installed successfully: $(go version)"
+}
+
+install_pdtm() {
+    if command -v pdtm >/dev/null 2>&1; then
+        echo "[=] PDTM already installed"
+        return
+    fi
+
+    echo "[+] Installing PDTM..."
+    go install github.com/projectdiscovery/pdtm/cmd/pdtm@latest
+
+    export PATH=$PATH:$HOME/go/bin
+
+    echo "[+] Verifying PDTM..."
+    if command -v pdtm >/dev/null 2>&1; then
+        echo "[+] PDTM installed successfully"
+    else
+        echo "[-] PDTM installation failed"
+        exit 1
+    fi
+}
+
+post_install() {
+    echo "[+] Installing core ProjectDiscovery tools (optional but recommended)..."
+    pdtm -install-all || true
+}
+
+main() {
+    install_go
+    install_pdtm
+    post_install
+
+    echo ""
+    echo "[✓] Setup complete"
+    echo "Reload your shell:"
+    echo "  source ~/.bashrc  OR  source ~/.zshrc"
+}
+
+main