commit - 8fb7891fe1bfed2396147321d7e595e6be6b013b
commit + 105962593321522f29005f004ebda4325bf1d5dc
blob - e21980ee699e15aafcc6afa4fa16a0ff97835a91
blob + bfd80ef3581e44e0d74bc5ee35a81b70f70214f4
--- README.md
+++ README.md
@@ -5,9 +5,19 @@ A base64 encoder & decoder in Zig
 ## Usage
 
 ```shell
+# Print help
+
 # Encoding
-echo -n "hello" | baze64
+> baze64 "hello"
 
-# Decoding
-echo -n "aGVsbG8=" | baze64
+# Decoding with -D or -d
+> baze64 -D "aGVsbG8="
+
+# Print help
+> baze64 -H
+Usage: baze64 {-d/-D} {-h/-H} input
+With no arguments, encodes input into a base64 string
+Args:
+  -d -D: decodes a base64 string
+  -h -H: print this help
 ```
\ No newline at end of file
blob - e621fefdd7350ee436ddf1bc8f6e2f59add8aee6
blob + 27633130bfa50c3727e2a1bac85257428c1e0234
--- src/main.zig
+++ src/main.zig
@@ -4,9 +4,11 @@ const stdout = std.io.getStdOut().writer();
 const Base64 = @import("base64.zig");
 
 const usageText =
-    \\Usage: baze64 {-d/-D} input
+    \\Usage: baze64 {-d/-D} {-h/-H} input
+    \\With no arguments, encodes input into a base64 string
     \\Args:
-    \\  -d -D: decode instead of encode
+    \\  -d -D: decodes a base64 string
+    \\  -h -H: print this help
     ;
 
 
@@ -33,6 +35,9 @@ pub fn main() !void {
 
         if (std.mem.eql(u8, arg, "-d") or std.mem.eql(u8, arg, "-D")) {
             decodeSwitch = true;
+        } else if (std.mem.eql(u8, arg, "-h") or std.mem.eql(u8, arg, "-H")) {
+            try stdout.print("{s}\n", .{usageText});
+            std.process.exit(0);
         } else {
             input = arg;
             break;