diff --git a/.eslintrc b/.eslintrc
new file mode 100644
index 0000000..66e0837
--- /dev/null
+++ b/.eslintrc
@@ -0,0 +1,50 @@
+{
+  "env": {
+    "commonjs": true,
+    "es6": true,
+    "node": true,
+    "jest": true
+  },
+  "extends": "prettier",
+  "parserOptions": {
+    "ecmaFeatures": {
+      "modules": true,
+      "experimentalObjectRestSpread": true
+    },
+    "sourceType": "module",
+    "ecmaVersion": 2017
+  },
+  "rules": {
+    "prettier/prettier": "error",
+    "indent": [
+      "error",
+      2,
+      {
+        "VariableDeclarator": {
+          "var": 2,
+          "let": 2,
+          "const": 3
+        }
+      }
+    ],
+    "linebreak-style": ["error", "unix"],
+    "no-multiple-empty-lines": [
+      "error",
+      {
+        "max": 2,
+        "maxEOF": 1
+      }
+    ],
+    "prefer-const": "warn",
+    "no-const-assign": "warn",
+    "no-this-before-super": "warn",
+    "no-undef": "warn",
+    "no-unreachable": "warn",
+    "no-unused-vars": "warn",
+    "constructor-super": "warn",
+    "valid-typeof": "warn",
+    "no-eval": "error",
+    "no-useless-return": "warn"
+  },
+  "plugins": ["prettier"]
+}
diff --git a/gistpush-edit.js b/gistpush-edit.js
new file mode 100644
index 0000000..6b7967c
--- /dev/null
+++ b/gistpush-edit.js
@@ -0,0 +1,167 @@
+// FIXME: we can't edit using a token
+const Gists = require("gists");
+const chalk = require("chalk");
+const program = require("commander");
+const prompt = require("prompt-sync")(); // Sync cli input
+const CLI = require("clui");
+const Spinner = CLI.Spinner;
+const { fs, utils } = require("./utils");
+
+const initializeLoader = () => {
+  const countdown = new Spinner("Fetching gists...  ", [
+    "⣾",
+    "⣽",
+    "⣻",
+    "⢿",
+    "⡿",
+    "⣟",
+    "⣯",
+    "⣷"
+  ]);
+
+  console.log("Fetching... ");
+  countdown.start();
+
+  return countdown;
+};
+
+const logError = err => {
+  console.error(
+    chalk.red(err.message === "Not Found" ? "Gist Not Found" : err)
+  );
+  process.exit(1);
+};
+
+const getCredentials = () => {
+  const username = prompt(chalk.yellow("Username: "));
+  const password = prompt.hide(chalk.yellow("Password: "));
+
+  return { username, password };
+};
+
+const createFile = async (filePath, deleteFile) => {
+  const fileName = filePath.replace(/(\.\/)?(.+\.[a-zA-Z]+)/, "$2");
+
+  if (deleteFile) {
+    return {
+      name: fileName,
+      deleteFile
+    };
+  }
+
+  const content = await fs.readFile(filePath).catch(logError);
+
+  return {
+    name: fileName,
+    content
+  };
+};
+
+const formatFile = (prev, current) => {
+  const { name, content, deleteFile } = current;
+  return { ...prev, [name]: deleteFile ? null : { content } };
+};
+
+const printSuccess = response => {
+  console.clear();
+  console.log(chalk.green("Gist updated succesfully!"));
+  utils.printGists(response);
+  process.exit(0);
+};
+
+const editGist = async (
+  gistId,
+  { credentials, files = [], description = "", deleteFiles = false }
+) => {
+  const areCredentials = Object.keys(credentials).length > 1;
+
+  const gist = new Gists(areCredentials ? { ...credentials } : undefined);
+
+  console.log(chalk.cyan("\nReading files..."));
+  console.log(program.args);
+
+  const loader = initializeLoader();
+
+  const solved = await Promise.all(
+    files.map(file => createFile(file, deleteFiles))
+  ).catch(logError);
+
+  const formattedFiles = solved.reduce(formatFile, {});
+
+  loader.stop();
+  console.log(chalk.green("\nDone..."));
+  console.clear();
+  console.log(chalk.cyan("\nSending files...\n"));
+  loader.start();
+
+  const { body } = await gist
+    .edit(gistId, {
+      description,
+      files: formattedFiles
+    })
+    .catch(logError);
+
+  loader.stop();
+  console.log(chalk.green("\nDone...\n"));
+  return body;
+};
+
+program
+  .description(
+    "update one or more files in a gist related to the account logged in"
+  )
+  .arguments("<filespath...>")
+  .option("-g, --gist-id <gist_id>", "identifier of Gist to edit")
+  .option(
+    "-t, --token <token>",
+    "Set token to log in into GitHub (recommended if you have two-factor auth activated in your GitHub account)"
+  )
+  .option(
+    "-d, --set-description <description>",
+    "new description to be saved in the gist"
+  )
+  .option(
+    "-D, --delete-files",
+    "Use the given paths in the arguments to eliminate files in the Gist"
+  )
+  .parse(process.argv);
+
+const files = program.args;
+const gistID = program.gistId;
+const description = program.setDescription;
+const deleteFiles = program.deleteFiles;
+const token = program.token;
+
+if (!gistID) {
+  logError(new Error("Gist ID not provided"));
+}
+
+if (!files || files.length === 0) {
+  console.log(chalk.orange("The Gist will be update without modfied files"));
+}
+
+(async function() {
+  if (token) {
+    const credentials = { token };
+
+    const gist = await editGist(gistID, {
+      credentials,
+      files,
+      description,
+      deleteFiles
+    });
+
+    printSuccess(gist);
+  } else {
+    const credentials = getCredentials();
+
+    const gist = await editGist(gistID, {
+      credentials,
+      files,
+      description,
+      deleteFiles
+    });
+
+    printSuccess(gist);
+  }
+})();
diff --git a/index-list.js b/gistpush-list.js
similarity index 89%
rename from index-list.js
rename to gistpush-list.js
index 37fc710..b607daf 100644
--- a/index-list.js
+++ b/gistpush-list.js
@@ -2,8 +2,8 @@ const Gists = require("gists");
 const chalk = require("chalk");
 const program = require("commander");
 const prompt = require("prompt-sync")(); // Sync cli input
-const CLI = require("clui"),
-  Spinner = CLI.Spinner;
+const CLI = require("clui");
+const Spinner = CLI.Spinner;
 
 const { utils } = require("./utils");
 
@@ -62,7 +62,7 @@ program
   )
   .parse(process.argv);
 
-let usernameGists = program.args[0];
+const usernameGists = program.args[0];
 const login = program.login;
 const secret = program.token ? program.token.trim() : undefined;
 
@@ -78,6 +78,7 @@ if (!login) {
 
     checkAndPrintGists(gists);
     spinner.stop();
+    console.log("\n");
 
     process.exit(0);
   })();
@@ -93,17 +94,22 @@ if (!login) {
 
     checkAndPrintGists(gists);
     spinner.stop();
+    console.log("\n");
     process.exit(0);
   })();
 } else {
-  const fromPropt = prompt(chalk.yellow("Username to log in (push enter to use the username argument): "));
+  const fromPropt = prompt(
+    chalk.yellow(
+      "Username to log in (push enter to use the username argument): "
+    )
+  );
   const username = fromPropt ? fromPropt : usernameGists;
   if (!username) {
     console.error(chalk.red("Username not provided"));
     process.exit(1);
   }
 
-  let password = prompt.hide(chalk.yellow("Password: "));
+  const password = prompt.hide(chalk.yellow("Password: "));
   if (!password) {
     console.error(chalk.red("Password or Token not provided"));
     process.exit(1);
diff --git a/index-push.js b/gistpush-push.js
similarity index 100%
rename from index-push.js
rename to gistpush-push.js
diff --git a/gistpush.js b/gistpush.js
new file mode 100755
index 0000000..f9d9846
--- /dev/null
+++ b/gistpush.js
@@ -0,0 +1,26 @@
+#!/usr/bin/env node
+
+(async function() {
+  const program = require("commander");
+
+  const { getVersion } = require("./utils");
+
+  const version = await getVersion().catch(console.error);
+
+  function main() {
+    program
+      .version(version)
+      .command(
+        "push <file1> [file2]",
+        "push one or more files to github as a gist",
+        { isDefault: true }
+      )
+      .command("list [username]", "list all gists for the given user")
+      .command("delete <gist_id...>", "delete one or more gists")
+      .command("edit <filespath...>", "update one or more files in a gist")
+      .parse(process.argv);
+  }
+
+  main();
+  module.exports = main;
+})();
diff --git a/index.js b/index.js
deleted file mode 100755
index 6fba333..0000000
--- a/index.js
+++ /dev/null
@@ -1,24 +0,0 @@
-const program = require("commander");
-
-const { getVersion } = require("./utils");
-
-let version = "";
-(async function() {
-  version = await getVersion().catch(console.error);
-})();
-
-function main() {
-  program
-    .version(version)
-    .command(
-      "push <file1> [file2]",
-      "push one or more files to github as a gist",
-      { isDefault: true }
-    )
-    .command("list [username]", "list all the public gist of the given user in GitHub. If no username, log in into GitHub instead to get a list of all your public/private gists on GitHub")
-		.command("delete <gist_id> [gist_id2...]", "delete one or more gists")
-    .parse(process.argv);
-}
-
-main();
-module.exports = main;
diff --git a/package-lock.json b/package-lock.json
index 9d4ab0c..c48abd9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,11 +4,58 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "acorn": {
+      "version": "5.7.3",
+      "resolved": "https://registry.npmjs.org/acorn/-/acorn-5.7.3.tgz",
+      "integrity": "sha512-T/zvzYRfbVojPWahDsE5evJdHb3oJoQfFbsrKM7w5Zcs++Tr257tia3BmMP8XYVjp1S9RZXQMh7gao96BlqZOw==",
+      "dev": true
+    },
+    "acorn-jsx": {
+      "version": "3.0.1",
+      "resolved": "http://registry.npmjs.org/acorn-jsx/-/acorn-jsx-3.0.1.tgz",
+      "integrity": "sha1-r9+UiPsezvyDSPb7IvRk4ypYs2s=",
+      "dev": true,
+      "requires": {
+        "acorn": "^3.0.4"
+      },
+      "dependencies": {
+        "acorn": {
+          "version": "3.3.0",
+          "resolved": "http://registry.npmjs.org/acorn/-/acorn-3.3.0.tgz",
+          "integrity": "sha1-ReN/s56No/JbruP/U2niu18iAXo=",
+          "dev": true
+        }
+      }
+    },
+    "ajv": {
+      "version": "5.5.2",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-5.5.2.tgz",
+      "integrity": "sha1-c7Xuyj+rZT49P5Qis0GtQiBdyWU=",
+      "dev": true,
+      "requires": {
+        "co": "^4.6.0",
+        "fast-deep-equal": "^1.0.0",
+        "fast-json-stable-stringify": "^2.0.0",
+        "json-schema-traverse": "^0.3.0"
+      }
+    },
+    "ajv-keywords": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-2.1.1.tgz",
+      "integrity": "sha1-YXmX/F9gV2iUxDX5QNgZ4TW4B2I=",
+      "dev": true
+    },
     "ansi-escapes": {
       "version": "3.1.0",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.1.0.tgz",
       "integrity": "sha512-UgAb8H9D41AQnu/PbWlCofQVcnV4Gs2bBJi9eZPxfU/hgglFh3SMDMENRIqdr7H6XFnXdoknctFByVsCOotTVw=="
     },
+    "ansi-regex": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-2.1.1.tgz",
+      "integrity": "sha1-w7M6te42DYbg5ijwRorn7yfWVN8=",
+      "dev": true
+    },
     "ansi-styles": {
       "version": "3.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
@@ -17,6 +64,36 @@
         "color-convert": "^1.9.0"
       }
     },
+    "argparse": {
+      "version": "1.0.10",
+      "resolved": "https://registry.npmjs.org/argparse/-/argparse-1.0.10.tgz",
+      "integrity": "sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==",
+      "dev": true,
+      "requires": {
+        "sprintf-js": "~1.0.2"
+      }
+    },
+    "array-union": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/array-union/-/array-union-1.0.2.tgz",
+      "integrity": "sha1-mjRBDk9OPaI96jdb5b5w8kd47Dk=",
+      "dev": true,
+      "requires": {
+        "array-uniq": "^1.0.1"
+      }
+    },
+    "array-uniq": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/array-uniq/-/array-uniq-1.0.3.tgz",
+      "integrity": "sha1-r2rId6Jcx/dOBYiUdThY39sk/bY=",
+      "dev": true
+    },
+    "arrify": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/arrify/-/arrify-1.0.1.tgz",
+      "integrity": "sha1-iYUI2iIm84DfkEcoRWhJwVAaSw0=",
+      "dev": true
+    },
     "assertion-error": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/assertion-error/-/assertion-error-1.1.0.tgz",
@@ -28,6 +105,53 @@
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha1-x57Zf380y48robyXkLzDZkdLS3k="
     },
+    "babel-code-frame": {
+      "version": "6.26.0",
+      "resolved": "https://registry.npmjs.org/babel-code-frame/-/babel-code-frame-6.26.0.tgz",
+      "integrity": "sha1-Y/1D99weO7fONZR9uP42mj9Yx0s=",
+      "dev": true,
+      "requires": {
+        "chalk": "^1.1.3",
+        "esutils": "^2.0.2",
+        "js-tokens": "^3.0.2"
+      },
+      "dependencies": {
+        "ansi-styles": {
+          "version": "2.2.1",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-2.2.1.tgz",
+          "integrity": "sha1-tDLdM1i2NM914eRmQ2gkBTPB3b4=",
+          "dev": true
+        },
+        "chalk": {
+          "version": "1.1.3",
+          "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+          "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^2.2.1",
+            "escape-string-regexp": "^1.0.2",
+            "has-ansi": "^2.0.0",
+            "strip-ansi": "^3.0.0",
+            "supports-color": "^2.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "3.0.1",
+          "resolved": "http://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
+          "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^2.0.0"
+          }
+        },
+        "supports-color": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-2.0.0.tgz",
+          "integrity": "sha1-U10EXOa2Nj+kARcIRimZXp3zJMc=",
+          "dev": true
+        }
+      }
+    },
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
@@ -50,6 +174,33 @@
       "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
       "dev": true
     },
+    "buffer-from": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/buffer-from/-/buffer-from-1.1.1.tgz",
+      "integrity": "sha512-MQcXEUbCKtEo7bhqEs6560Hyd4XaovZlO/k9V3hjVUF/zwW7KBVdSK4gIt/bzwS9MbR5qob+F5jusZsb0YQK2A==",
+      "dev": true
+    },
+    "builtin-modules": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/builtin-modules/-/builtin-modules-1.1.1.tgz",
+      "integrity": "sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=",
+      "dev": true
+    },
+    "caller-path": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/caller-path/-/caller-path-0.1.0.tgz",
+      "integrity": "sha1-lAhe9jWB7NPaqSREqP6U6CV3dR8=",
+      "dev": true,
+      "requires": {
+        "callsites": "^0.2.0"
+      }
+    },
+    "callsites": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/callsites/-/callsites-0.2.0.tgz",
+      "integrity": "sha1-r6uWJikQp/M8GaV3WCXGnzTjUMo=",
+      "dev": true
+    },
     "chai": {
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/chai/-/chai-4.2.0.tgz",
@@ -74,12 +225,24 @@
         "supports-color": "^5.3.0"
       }
     },
+    "chardet": {
+      "version": "0.4.2",
+      "resolved": "https://registry.npmjs.org/chardet/-/chardet-0.4.2.tgz",
+      "integrity": "sha1-tUc7M9yXxCTl2Y3IfVXU2KKci/I=",
+      "dev": true
+    },
     "check-error": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.2.tgz",
       "integrity": "sha1-V00xLt2Iu13YkS6Sht1sCu1KrII=",
       "dev": true
     },
+    "circular-json": {
+      "version": "0.3.3",
+      "resolved": "https://registry.npmjs.org/circular-json/-/circular-json-0.3.3.tgz",
+      "integrity": "sha512-UZK3NBx2Mca+b5LsG7bY183pHWt5Y1xts4P3Pz7ENTwGVnJOUWbRb3ocjvX7hx9tq/yTAdclXm9sZ38gNuem4A==",
+      "dev": true
+    },
     "cli-color": {
       "version": "0.3.2",
       "resolved": "http://registry.npmjs.org/cli-color/-/cli-color-0.3.2.tgz",
@@ -91,6 +254,21 @@
         "timers-ext": "0.1.x"
       }
     },
+    "cli-cursor": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/cli-cursor/-/cli-cursor-2.1.0.tgz",
+      "integrity": "sha1-s12sN2R5+sw+lHR9QdDQ9SOP/LU=",
+      "dev": true,
+      "requires": {
+        "restore-cursor": "^2.0.0"
+      }
+    },
+    "cli-width": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/cli-width/-/cli-width-2.2.0.tgz",
+      "integrity": "sha1-/xnt6Kml5XkyQUewwR8PvLq+1jk=",
+      "dev": true
+    },
     "clui": {
       "version": "0.3.6",
       "resolved": "https://registry.npmjs.org/clui/-/clui-0.3.6.tgz",
@@ -149,6 +327,24 @@
       "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
       "dev": true
     },
+    "concat-stream": {
+      "version": "1.6.2",
+      "resolved": "https://registry.npmjs.org/concat-stream/-/concat-stream-1.6.2.tgz",
+      "integrity": "sha512-27HBghJxjiZtIk3Ycvn/4kbJk/1uZuJFfuPEns6LaEvpvG1f0hTea8lilrouyo9mVc2GWdcEZ8OLoGmSADlrCw==",
+      "dev": true,
+      "requires": {
+        "buffer-from": "^1.0.0",
+        "inherits": "^2.0.3",
+        "readable-stream": "^2.2.2",
+        "typedarray": "^0.0.6"
+      }
+    },
+    "contains-path": {
+      "version": "0.1.0",
+      "resolved": "https://registry.npmjs.org/contains-path/-/contains-path-0.1.0.tgz",
+      "integrity": "sha1-/ozxhP9mcLa67wGp1IYaXL7EEgo=",
+      "dev": true
+    },
     "cookiejar": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/cookiejar/-/cookiejar-2.1.2.tgz",
@@ -159,6 +355,17 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "cross-spawn": {
+      "version": "5.1.0",
+      "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-5.1.0.tgz",
+      "integrity": "sha1-6L0O/uWPz/b4+UUQoKVUu/ojVEk=",
+      "dev": true,
+      "requires": {
+        "lru-cache": "^4.0.1",
+        "shebang-command": "^1.2.0",
+        "which": "^1.2.9"
+      }
+    },
     "d": {
       "version": "0.1.1",
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+    "pseudomap": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",
+      "integrity": "sha1-8FKijacOYYkX7wqKw0wa5aaChrM=",
+      "dev": true
+    },
     "qs": {
       "version": "6.5.2",
       "resolved": "https://registry.npmjs.org/qs/-/qs-6.5.2.tgz",
       "integrity": "sha512-N5ZAX4/LxJmF+7wN74pUD6qAh9/wnvdQcjq9TZjevvXzSUo7bfmw91saqMjzGS2xq91/odN2dW/WOl7qQHNDGA=="
     },
+    "read-pkg": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/read-pkg/-/read-pkg-2.0.0.tgz",
+      "integrity": "sha1-jvHAYjxqbbDcZxPEv6xGMysjaPg=",
+      "dev": true,
+      "requires": {
+        "load-json-file": "^2.0.0",
+        "normalize-package-data": "^2.3.2",
+        "path-type": "^2.0.0"
+      }
+    },
+    "read-pkg-up": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/read-pkg-up/-/read-pkg-up-2.0.0.tgz",
+      "integrity": "sha1-a3KoBImE4MQeeVEP1en6mbO1Sb4=",
+      "dev": true,
+      "requires": {
+        "find-up": "^2.0.0",
+        "read-pkg": "^2.0.0"
+      },
+      "dependencies": {
+        "find-up": {
+          "version": "2.1.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-2.1.0.tgz",
+          "integrity": "sha1-RdG35QbHF93UgndaK3eSCjwMV6c=",
+          "dev": true,
+          "requires": {
+            "locate-path": "^2.0.0"
+          }
+        }
+      }
+    },
     "readable-stream": {
       "version": "2.3.6",
       "resolved": "http://registry.npmjs.org/readable-stream/-/readable-stream-2.3.6.tgz",
@@ -642,6 +1627,80 @@
         "util-deprecate": "~1.0.1"
       }
     },
+    "regexpp": {
+      "version": "1.1.0",
+      "resolved": "http://registry.npmjs.org/regexpp/-/regexpp-1.1.0.tgz",
+      "integrity": "sha512-LOPw8FpgdQF9etWMaAfG/WRthIdXJGYp4mJ2Jgn/2lpkbod9jPn0t9UqN7AxBOKNfzRbYyVfgc7Vk4t/MpnXgw==",
+      "dev": true
+    },
+    "require-uncached": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/require-uncached/-/require-uncached-1.0.3.tgz",
+      "integrity": "sha1-Tg1W1slmL9MeQwEcS5WqSZVUIdM=",
+      "dev": true,
+      "requires": {
+        "caller-path": "^0.1.0",
+        "resolve-from": "^1.0.0"
+      }
+    },
+    "resolve": {
+      "version": "1.8.1",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.8.1.tgz",
+      "integrity": "sha512-AicPrAC7Qu1JxPCZ9ZgCZlY35QgFnNqc+0LtbRNxnVw4TXvjQ72wnuL9JQcEBgXkI9JM8MsT9kaQoHcpCRJOYA==",
+      "dev": true,
+      "requires": {
+        "path-parse": "^1.0.5"
+      }
+    },
+    "resolve-from": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/resolve-from/-/resolve-from-1.0.1.tgz",
+      "integrity": "sha1-Jsv+k10a7uq7Kbw/5a6wHpPUQiY=",
+      "dev": true
+    },
+    "restore-cursor": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/restore-cursor/-/restore-cursor-2.0.0.tgz",
+      "integrity": "sha1-n37ih/gv0ybU/RYpI9YhKe7g368=",
+      "dev": true,
+      "requires": {
+        "onetime": "^2.0.0",
+        "signal-exit": "^3.0.2"
+      }
+    },
+    "rimraf": {
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.2.tgz",
+      "integrity": "sha512-lreewLK/BlghmxtfH36YYVg1i8IAce4TI7oao75I1g245+6BctqTVQiBP3YUJ9C6DQOXJmkYR9X9fCLtCOJc5w==",
+      "dev": true,
+      "requires": {
+        "glob": "^7.0.5"
+      }
+    },
+    "run-async": {
+      "version": "2.3.0",
+      "resolved": "https://registry.npmjs.org/run-async/-/run-async-2.3.0.tgz",
+      "integrity": "sha1-A3GrSuC91yDUFm19/aZP96RFpsA=",
+      "dev": true,
+      "requires": {
+        "is-promise": "^2.1.0"
+      }
+    },
+    "rx-lite": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/rx-lite/-/rx-lite-4.0.8.tgz",
+      "integrity": "sha1-Cx4Rr4vESDbwSmQH6S2kJGe3lEQ=",
+      "dev": true
+    },
+    "rx-lite-aggregates": {
+      "version": "4.0.8",
+      "resolved": "https://registry.npmjs.org/rx-lite-aggregates/-/rx-lite-aggregates-4.0.8.tgz",
+      "integrity": "sha1-dTuHqJoRyVRnxKwWJsTvxOBcZ74=",
+      "dev": true,
+      "requires": {
+        "rx-lite": "*"
+      }
+    },
     "safe-buffer": {
       "version": "5.1.2",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
@@ -657,6 +1716,90 @@
       "resolved": "https://registry.npmjs.org/sax/-/sax-1.2.4.tgz",
       "integrity": "sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw=="
     },
+    "semver": {
+      "version": "5.6.0",
+      "resolved": "https://registry.npmjs.org/semver/-/semver-5.6.0.tgz",
+      "integrity": "sha512-RS9R6R35NYgQn++fkDWaOmqGoj4Ek9gGs+DPxNUZKuwE183xjJroKvyo1IzVFeXvUrvmALy6FWD5xrdJT25gMg==",
+      "dev": true
+    },
+    "shebang-command": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
+      "integrity": "sha1-RKrGW2lbAzmJaMOfNj/uXer98eo=",
+      "dev": true,
+      "requires": {
+        "shebang-regex": "^1.0.0"
+      }
+    },
+    "shebang-regex": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-1.0.0.tgz",
+      "integrity": "sha1-2kL0l0DAtC2yypcoVxyxkMmO/qM=",
+      "dev": true
+    },
+    "signal-exit": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
+      "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0=",
+      "dev": true
+    },
+    "slice-ansi": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-1.0.0.tgz",
+      "integrity": "sha512-POqxBK6Lb3q6s047D/XsDVNPnF9Dl8JSaqe9h9lURl0OdNqy/ujDrOiIHtsqXMGbWWTIomRzAMaTyawAU//Reg==",
+      "dev": true,
+      "requires": {
+        "is-fullwidth-code-point": "^2.0.0"
+      }
+    },
+    "spdx-correct": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/spdx-correct/-/spdx-correct-3.0.2.tgz",
+      "integrity": "sha512-q9hedtzyXHr5S0A1vEPoK/7l8NpfkFYTq6iCY+Pno2ZbdZR6WexZFtqeVGkGxW3TEJMN914Z55EnAGMmenlIQQ==",
+      "dev": true,
+      "requires": {
+        "spdx-expression-parse": "^3.0.0",
+        "spdx-license-ids": "^3.0.0"
+      }
+    },
+    "spdx-exceptions": {
+      "version": "2.2.0",
+      "resolved": "https://registry.npmjs.org/spdx-exceptions/-/spdx-exceptions-2.2.0.tgz",
+      "integrity": "sha512-2XQACfElKi9SlVb1CYadKDXvoajPgBVPn/gOQLrTvHdElaVhr7ZEbqJaRnJLVNeaI4cMEAgVCeBMKF6MWRDCRA==",
+      "dev": true
+    },
+    "spdx-expression-parse": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/spdx-expression-parse/-/spdx-expression-parse-3.0.0.tgz",
+      "integrity": "sha512-Yg6D3XpRD4kkOmTpdgbUiEJFKghJH03fiC1OPll5h/0sO6neh2jqRDVHOQ4o/LMea0tgCkbMgea5ip/e+MkWyg==",
+      "dev": true,
+      "requires": {
+        "spdx-exceptions": "^2.1.0",
+        "spdx-license-ids": "^3.0.0"
+      }
+    },
+    "spdx-license-ids": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/spdx-license-ids/-/spdx-license-ids-3.0.1.tgz",
+      "integrity": "sha512-TfOfPcYGBB5sDuPn3deByxPhmfegAhpDYKSOXZQN81Oyrrif8ZCodOLzK3AesELnCx03kikhyDwh0pfvvQvF8w==",
+      "dev": true
+    },
+    "sprintf-js": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/sprintf-js/-/sprintf-js-1.0.3.tgz",
+      "integrity": "sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=",
+      "dev": true
+    },
+    "string-width": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+      "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+      "dev": true,
+      "requires": {
+        "is-fullwidth-code-point": "^2.0.0",
+        "strip-ansi": "^4.0.0"
+      }
+    },
     "string_decoder": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
@@ -665,6 +1808,35 @@
         "safe-buffer": "~5.1.0"
       }
     },
+    "strip-ansi": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+      "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+      "dev": true,
+      "requires": {
+        "ansi-regex": "^3.0.0"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
+          "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg=",
+          "dev": true
+        }
+      }
+    },
+    "strip-bom": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-3.0.0.tgz",
+      "integrity": "sha1-IzTBjpx1n3vdVv3vfprj1YjmjtM=",
+      "dev": true
+    },
+    "strip-json-comments": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
+      "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
+      "dev": true
+    },
     "superagent": {
       "version": "3.8.3",
       "resolved": "https://registry.npmjs.org/superagent/-/superagent-3.8.3.tgz",
@@ -721,6 +1893,20 @@
         }
       }
     },
+    "table": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/table/-/table-4.0.2.tgz",
+      "integrity": "sha512-UUkEAPdSGxtRpiV9ozJ5cMTtYiqz7Ni1OGqLXRCynrvzdtR1p+cfOWe2RJLwvUG8hNanaSRjecIqwOjqeatDsA==",
+      "dev": true,
+      "requires": {
+        "ajv": "^5.2.3",
+        "ajv-keywords": "^2.1.0",
+        "chalk": "^2.1.0",
+        "lodash": "^4.17.4",
+        "slice-ansi": "1.0.0",
+        "string-width": "^2.1.1"
+      }
+    },
     "terminal-link": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/terminal-link/-/terminal-link-1.1.0.tgz",
@@ -730,6 +1916,18 @@
         "supports-hyperlinks": "^1.0.1"
       }
     },
+    "text-table": {
+      "version": "0.2.0",
+      "resolved": "https://registry.npmjs.org/text-table/-/text-table-0.2.0.tgz",
+      "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
+      "dev": true
+    },
+    "through": {
+      "version": "2.3.8",
+      "resolved": "http://registry.npmjs.org/through/-/through-2.3.8.tgz",
+      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
+      "dev": true
+    },
     "timers-ext": {
       "version": "0.1.7",
       "resolved": "https://registry.npmjs.org/timers-ext/-/timers-ext-0.1.7.tgz",
@@ -739,12 +1937,36 @@
         "next-tick": "1"
       }
     },
+    "tmp": {
+      "version": "0.0.33",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
+      "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "dev": true,
+      "requires": {
+        "os-tmpdir": "~1.0.2"
+      }
+    },
+    "type-check": {
+      "version": "0.3.2",
+      "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.3.2.tgz",
+      "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
+      "dev": true,
+      "requires": {
+        "prelude-ls": "~1.1.2"
+      }
+    },
     "type-detect": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
       "integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
       "dev": true
     },
+    "typedarray": {
+      "version": "0.0.6",
+      "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
+      "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
+      "dev": true
+    },
     "use": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
@@ -755,16 +1977,56 @@
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
+    "validate-npm-package-license": {
+      "version": "3.0.4",
+      "resolved": "https://registry.npmjs.org/validate-npm-package-license/-/validate-npm-package-license-3.0.4.tgz",
+      "integrity": "sha512-DpKm2Ui/xN7/HQKCtpZxoRWBhZ9Z0kqtygG8XCgNQ8ZlDnxuQmWhj566j8fN4Cu3/JmbhsDo7fcAJq4s9h27Ew==",
+      "dev": true,
+      "requires": {
+        "spdx-correct": "^3.0.0",
+        "spdx-expression-parse": "^3.0.0"
+      }
+    },
+    "which": {
+      "version": "1.3.1",
+      "resolved": "https://registry.npmjs.org/which/-/which-1.3.1.tgz",
+      "integrity": "sha512-HxJdYWq1MTIQbJ3nw0cqssHoTNU267KlrDuGZ1WYlxDStUtKUhOaJmh112/TZmHxxUfuJqPXSOm7tDyas0OSIQ==",
+      "dev": true,
+      "requires": {
+        "isexe": "^2.0.0"
+      }
+    },
+    "wordwrap": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=",
+      "dev": true
+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
       "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
       "dev": true
     },
+    "write": {
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/write/-/write-0.2.1.tgz",
+      "integrity": "sha1-X8A4KOJkzqP+kUVUdvejxWbLB1c=",
+      "dev": true,
+      "requires": {
+        "mkdirp": "^0.5.1"
+      }
+    },
     "xtend": {
       "version": "4.0.1",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.1.tgz",
       "integrity": "sha1-pcbVMr5lbiPbgg77lDofBJmNY68="
+    },
+    "yallist": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/yallist/-/yallist-2.1.2.tgz",
+      "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=",
+      "dev": true
     }
   }
 }
diff --git a/package.json b/package.json
index d510d48..60e41e0 100644
--- a/package.json
+++ b/package.json
@@ -2,9 +2,13 @@
   "name": "gistpush",
   "version": "2.0.2",
   "description": "CLI tool to create, remove & manipulate github gists.",
-  "main": "index.js",
+  "main": "gistpush.js",
   "scripts": {
-    "test": "mocha"
+    "test": "mocha",
+    "build": "npm link",
+    "destroy": "npm uninstall",
+    "pretest": "npm run build",
+    "start": "node gistpush.js"
   },
   "keywords": [
     "cli",
@@ -13,7 +17,7 @@
   "author": "Shubham Rath",
   "license": "ISC",
   "bin": {
-    "gistpush": "./index.js"
+    "gistpush": "./gistpush.js"
   },
   "repository": {
     "type": "git",
@@ -33,6 +37,11 @@
   },
   "devDependencies": {
     "chai": "^4.2.0",
-    "mocha": "^5.2.0"
+    "mocha": "^5.2.0",
+    "eslint": "^4.19.1",
+    "eslint-config-prettier": "^2.9.0",
+    "eslint-plugin-import": "^2.13.0",
+    "eslint-plugin-prettier": "^2.6.2",
+    "prettier": "1.13.7"
   }
 }
diff --git a/test/gistpush.spec.js b/test/gistpush.spec.js
new file mode 100644
index 0000000..e69de29
diff --git a/utils/fs_as_promise.js b/utils/fs_as_promise.js
index 552c851..9748e7c 100644
--- a/utils/fs_as_promise.js
+++ b/utils/fs_as_promise.js
@@ -2,7 +2,7 @@ const fs = require("fs");
 
 function readFile(path) {
   return new Promise((resolve, reject) => {
-    fs.readFile(path, (err, data) => {
+    fs.readFile(path, "utf-8", (err, data) => {
       if (err) reject(err);
       resolve(data);
     });
@@ -11,4 +11,4 @@ function readFile(path) {
 
 module.exports = {
   readFile
-}
+};
diff --git a/utils/utils.js b/utils/utils.js
index 9511f9f..e4ca7af 100644
--- a/utils/utils.js
+++ b/utils/utils.js
@@ -1,8 +1,16 @@
 const chalk = require("chalk");
-const terminalLink = require('terminal-link');
+const terminalLink = require("terminal-link");
 
 function printGists(gist, index) {
-  const { id, html_url, files, public, comments, created_at, updated_at } = gist;
+  const {
+    id,
+    html_url,
+    files,
+    public,
+    comments,
+    created_at,
+    updated_at
+  } = gist;
 
   console.group(chalk.white(`id: ${id}`));
   console.group(chalk.yellow("Visit Gist:"));
@@ -11,20 +19,20 @@ function printGists(gist, index) {
   console.group(chalk.yellow("Files:"));
   console.log(chalk.green(Object.keys(files)));
   console.groupEnd();
-  console.group(chalk.yellow("Public:"))
+  console.group(chalk.yellow("Public:"));
   console.log(chalk.green(public));
   console.groupEnd();
-  console.group(chalk.yellow("Comments:"))
+  console.group(chalk.yellow("Comments:"));
   console.log(chalk.green(comments));
   console.groupEnd();
-  console.group(chalk.yellow("Created At:"))
+  console.group(chalk.yellow("Created At:"));
   console.log(chalk.green(new Date(created_at).toDateString()));
   console.groupEnd();
-  console.group(chalk.yellow("Updated At:"))
+  console.group(chalk.yellow("Updated At:"));
   console.log(chalk.green(new Date(updated_at).toDateString()));
   console.groupEnd();
   console.groupEnd();
   process.stdout.write("\n");
 }
 
-module.exports = { printGists }
+module.exports = { printGists };