Update README.md

install.sh

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+#!/bin/bash
+
+set -euo pipefail
+
+# Detect architecture
+ARCH=$(uname -m)
+case "$ARCH" in
+    x86_64)
+        ARCH="x86_64"
+        ;;
+    aarch64|arm64)
+        ARCH="aarch64"
+        ;;
+    *)
+        echo "Unsupported architecture: $ARCH"
+        exit 1
+        ;;
+esac
+
+# Detect OS
+OS=$(uname -s | tr '[:upper:]' '[:lower:]')
+if [ "$OS" != "linux" ]; then
+    echo "This installer only supports Linux. Detected OS: $OS"
+    exit 1
+fi
+
+# Set installation directory
+INSTALL_DIR="${HOME}/.local/bin"
+INSTALL_PATH="${INSTALL_DIR}/dshash"
+
+# Create installation directory if it doesn't exist
+mkdir -p "${INSTALL_DIR}"
+
+# Download dshash binary
+echo "Downloading dshash for ${OS}/${ARCH}..."
+DOWNLOAD_URL="https://getbin.xyz/dshash:latest-${ARCH}"
+
+if command -v curl >/dev/null 2>&1; then
+    curl -L -s -o "${INSTALL_PATH}" "${DOWNLOAD_URL}"
+elif command -v wget >/dev/null 2>&1; then
+    wget -q -O "${INSTALL_PATH}" "${DOWNLOAD_URL}"
+else
+    echo "Error: Neither curl nor wget is available. Please install one of them."
+    exit 1
+fi
+
+# Make it executable
+chmod +x "${INSTALL_PATH}"
+
+# Verify installation
+if "${INSTALL_PATH}" /dev/null 2>/dev/null; then
+    echo "dshash has been successfully installed to ${INSTALL_PATH}"
+    
+    # Check if directory is in PATH
+    if [[ ":$PATH:" != *":${INSTALL_DIR}:"* ]]; then
+        echo ""
+        echo "Note: ${INSTALL_DIR} is not in your PATH."
+        echo "Add the following line to your shell configuration file (.bashrc, .zshrc, etc.):"
+        echo "  export PATH=\"${INSTALL_DIR}:\$PATH\""
+    fi
+else
+    echo "Error: Installation verification failed"
+    exit 1
+fi
+
+echo ""
+echo "Installation complete! You can now use 'dshash' to compute SHA256 hashes."
+echo "Usage: dshash [-v] <file_or_directory>"