feat manage script

scripts/setup_ssh_keys.sh

@@ -0,0 +1,57 @@
+#!/bin/bash
+
+set -e
+
+usage() {
+    echo "Usage: $0 --comment <comment> [--filename <filename>]"
+    echo "  --comment <comment>   The comment for the SSH key."
+    echo "  --filename <filename> (optional) The filename suffix for the SSH key. Defaults to 'id_ed25519'."
+    exit 1
+}
+
+# Default values
+COMMENT=""
+FILENAME="id_ed25519"
+
+# Parse named arguments
+while [[ $# -gt 0 ]]; do
+    case $1 in
+        --comment)
+            COMMENT="$2"
+            shift 2
+            ;;
+        --filename)
+            FILENAME="id_ed25519_$2"
+            shift 2
+            ;;
+        *)
+            echo "Unknown argument: $1"
+            usage
+            ;;
+    esac
+done
+
+# Validate required arguments
+if [ -z "$COMMENT" ]; then
+    echo "Error: --comment is required."
+    usage
+fi
+
+SSH_DIR="$HOME/.ssh"
+KEY_PATH="$SSH_DIR/$FILENAME"
+
+# Ensure SSH directory exists
+mkdir -p "$SSH_DIR"
+chmod 700 "$SSH_DIR"
+
+# Generate SSH key
+if [ -f "$KEY_PATH" ]; then
+    echo "Error: Key file $KEY_PATH already exists."
+    exit 1
+fi
+
+ssh-keygen -t ed25519 -C "$COMMENT" -f "$KEY_PATH" -N ""
+
+echo "SSH key created: $KEY_PATH"
+echo "Public key:"
+cat "$KEY_PATH.pub"