diff --git a/bin/slack.js b/bin/slack.js
index 6613df5..fe07cb5 100755
--- a/bin/slack.js
+++ b/bin/slack.js
@@ -1,28 +1,37 @@
 #!/usr/bin/env node
 const { WebClient } = require('@slack/web-api');
 const { Command } = require('commander');
+const fs = require('fs');
 const program = new Command();
+var stdin = "";
+
+// An access token (from your Slack app or custom integration - xoxp, xoxb)
+const token = process.env.SLACK_TOKEN;
+const web = new WebClient(token);
 
 program
-    .arguments('<message>')
-    .description( 'Sends a message to a slack channel.')
+    .arguments('[message]')
+    .description('Sends <message> to a slack channel. Use - for reading message from stdin')
     .option('-d, --debug', 'output extra debugging')
     .option('-c, --channel <channel_id>', 'send message to slack channel', "dereko")
-    .parse(process.argv);
+    .parse(process.argv)
+    .action(function (message) {
+        if (stdin) message = stdin;
+
+        (async () => {
+            // See: https://api.slack.com/methods/chat.postMessage
+            const res = await web.chat.postMessage({ channel: options.channel, text: message });
+            // `res` contains information about the posted message
+            console.log('Message sent: ', res.ts);
+        })();
+    })
 
 const options = program.opts();
 if (options.debug) console.log(options);
 
-// An access token (from your Slack app or custom integration - xoxp, xoxb)
-const token = process.env.SLACK_TOKEN;
+if (program.args.length == 0 || program.args[0] == '-') {
+    console.debug("Reading from stdin")
+    stdin = '```\n' + fs.readFileSync(0, 'utf-8') + '```';
+}
 
-const web = new WebClient(token);
-const conversationId = options.channel;
-
-(async () => {
-  // See: https://api.slack.com/methods/chat.postMessage
-  const res = await web.chat.postMessage({ channel: conversationId, text: program.args[0] });
-
-  // `res` contains information about the posted message
-  console.log('Message sent: ', res.ts);
-})();
+program.parse(process.argv);