diff --git a/README.md b/README.md
index 56a93314..8376d397 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,15 @@ $ sort-package-json "**/package.json" --check
 # 2 of 5 matched files are not sorted.
 ```
 
+#### `--quiet` flag
+
+In order to silence any successful output, you can run CLI with the `--quiet` flag (or `-q`). This will stop the CLI from outputting if it runs successfully, but will still display errors if they occur. Exit codes will not change.
+
+```bash
+$ sort-package-json "**/package.json" --check --quiet
+$ sort-package-json "**/package.json" --quiet
+```
+
 ## API
 
 ### Install
diff --git a/cli.js b/cli.js
index 370afd26..c2369172 100755
--- a/cli.js
+++ b/cli.js
@@ -7,9 +7,15 @@ const isCheckFlag = (argument) => argument === '--check' || argument === '-c'
 const isHelpFlag = (argument) => argument === '--help' || argument === '-h'
 const isVersionFlag = (argument) =>
   argument === '--version' || argument === '-v'
+const isQuietFlag = (argument) => argument === '--quiet' || argument === '-q'
 
 const cliArguments = process.argv.slice(2)
 const isCheck = cliArguments.some(isCheckFlag)
+const isQuiet = cliArguments.some(isQuietFlag)
+
+const stdout = isQuiet ? () => {} : console.log
+const stderr = console.error
+
 const isHelp = cliArguments.some(isHelpFlag)
 const isVersion = cliArguments.some(isVersionFlag)
 
@@ -20,6 +26,7 @@ Sort npm package.json files. Default: ./package.json
 Strings passed as files are parsed as globs.
 
   -c, --check                check if FILES are sorted
+  -q, --quiet                don't output success messages
   -h, --help                 display this help and exit
   -v, --version              display the version and exit
   `,
@@ -35,7 +42,9 @@ if (isVersion) {
   process.exit(0)
 }
 
-const patterns = cliArguments.filter((argument) => !isCheckFlag(argument))
+const patterns = cliArguments.filter(
+  (argument) => !isCheckFlag(argument) && !isQuietFlag(argument),
+)
 
 if (!patterns.length) {
   patterns[0] = 'package.json'
@@ -44,7 +53,7 @@ if (!patterns.length) {
 const files = globbySync(patterns)
 
 if (files.length === 0) {
-  console.log('No matching files.')
+  stderr('No matching files.')
   process.exit(1)
 }
 
@@ -57,24 +66,24 @@ files.forEach((file) => {
   if (sorted !== packageJson) {
     if (isCheck) {
       notSortedFiles++
-      console.log(file)
+      stdout(file)
     } else {
       fs.writeFileSync(file, sorted, 'utf8')
-      console.log(`${file} is sorted!`)
+      stdout(`${file} is sorted!`)
     }
   }
 })
 
 if (isCheck) {
-  console.log()
+  stdout()
   if (notSortedFiles) {
-    console.log(
+    stdout(
       notSortedFiles === 1
         ? `${notSortedFiles} of ${files.length} matched file is not sorted.`
         : `${notSortedFiles} of ${files.length} matched files are not sorted.`,
     )
   } else {
-    console.log(
+    stdout(
       files.length === 1
         ? `${files.length} matched file is sorted.`
         : `${files.length} matched files are sorted.`,
diff --git a/tests/cli.js b/tests/cli.js
index dff443c4..9f628246 100644
--- a/tests/cli.js
+++ b/tests/cli.js
@@ -18,6 +18,51 @@ test('cli', (t) => {
   )
 })
 
+test('run `cli --help`', macro.testCLI, {
+  args: ['--help'],
+  message: 'Should report help menu.',
+})
+
+test('run `cli --help --quiet`', macro.testCLI, {
+  args: ['--help', '--quiet'],
+  message: 'Should report help menu overriding quiet.',
+})
+
+test('run `cli -h`', macro.testCLI, {
+  args: ['-h'],
+  message: 'Should support help alias.',
+})
+
+test('run `cli --help` with other arguments', macro.testCLI, {
+  args: ['NONE_EXISTS_FILE', '--help'],
+  message: 'Should prioritize help argument.',
+})
+
+test('run `cli --version`', macro.testCLI, {
+  args: ['--version'],
+  message: 'Should report version number.',
+})
+
+test('run `cli --version --quiet`', macro.testCLI, {
+  args: ['--version', '--quiet'],
+  message: 'Should report version overriding quiet.',
+})
+
+test('run `cli -v`', macro.testCLI, {
+  args: ['-v'],
+  message: 'Should support version alias.',
+})
+
+test('run `cli --version` with other arguments', macro.testCLI, {
+  args: ['NONE_EXISTS_FILE', '--version'],
+  message: 'Should prioritize version argument.',
+})
+
+test('run `cli --help` with `--version`', macro.testCLI, {
+  args: ['--version', '--help'],
+  message: 'Should prioritize help over version.',
+})
+
 test('run `cli` with no patterns', macro.testCLI, {
   fixtures: [
     {
@@ -30,6 +75,30 @@ test('run `cli` with no patterns', macro.testCLI, {
   message: 'Should format package.json.',
 })
 
+test('run `cli --quiet` with no patterns', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'package.json',
+      content: badJson,
+      expect: goodJson,
+    },
+  ],
+  args: ['--quiet'],
+  message: 'Should format package.json without message.',
+})
+
+test('run `cli -q` with no patterns', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'package.json',
+      content: badJson,
+      expect: goodJson,
+    },
+  ],
+  args: ['-q'],
+  message: 'Should support -q alias.',
+})
+
 test('run `cli --check` with no patterns', macro.testCLI, {
   fixtures: [
     {
@@ -39,7 +108,19 @@ test('run `cli --check` with no patterns', macro.testCLI, {
     },
   ],
   args: ['--check'],
-  message: 'Should package.json is not sorted',
+  message: 'Should not sort package.json',
+})
+
+test('run `cli --check --quiet` with no patterns', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'package.json',
+      content: badJson,
+      expect: badJson,
+    },
+  ],
+  args: ['--check', '--quiet'],
+  message: 'Should not sort package.json or report a message.',
 })
 
 test('run `cli -c` with no patterns', macro.testCLI, {
@@ -54,6 +135,18 @@ test('run `cli -c` with no patterns', macro.testCLI, {
   message: 'Should support `-c` alias',
 })
 
+test('run `cli -c -q` with no patterns', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'package.json',
+      content: badJson,
+      expect: badJson,
+    },
+  ],
+  args: ['-c', '-q'],
+  message: 'Should support `-q` alias',
+})
+
 test('run `cli` on 1 bad file', macro.testCLI, {
   fixtures: [
     {
@@ -66,6 +159,18 @@ test('run `cli` on 1 bad file', macro.testCLI, {
   message: 'Should format 1 file.',
 })
 
+test('run `cli --quiet` on 1 bad file', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'bad/package.json',
+      content: badJson,
+      expect: goodJson,
+    },
+  ],
+  args: ['*/package.json', '--quiet'],
+  message: 'Should format 1 file without message.',
+})
+
 test('run `cli --check` on 1 bad file', macro.testCLI, {
   fixtures: [
     {
@@ -78,6 +183,18 @@ test('run `cli --check` on 1 bad file', macro.testCLI, {
   message: 'Should report 1 file.',
 })
 
+test('run `cli --check --quiet` on 1 bad file', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'bad/package.json',
+      content: badJson,
+      expect: badJson,
+    },
+  ],
+  args: ['*/package.json', '--check', '--quiet'],
+  message: 'Should exit code 1 without report.',
+})
+
 test('run `cli` on 2 bad files', macro.testCLI, {
   fixtures: Array.from({ length: 2 }, (_, index) => ({
     file: `bad-${index + 1}/package.json`,
@@ -98,6 +215,26 @@ test('run `cli --check` on 2 bad files', macro.testCLI, {
   message: 'Should report 2 files.',
 })
 
+test('run `cli --quiet` on 2 bad files', macro.testCLI, {
+  fixtures: Array.from({ length: 2 }, (_, index) => ({
+    file: `bad-${index + 1}/package.json`,
+    content: badJson,
+    expect: goodJson,
+  })),
+  args: ['*/package.json', '--quiet'],
+  message: 'Should format 2 files without messages.',
+})
+
+test('run `cli --check --quiet` on 2 bad files', macro.testCLI, {
+  fixtures: Array.from({ length: 2 }, (_, index) => ({
+    file: `bad-${index + 1}/package.json`,
+    content: badJson,
+    expect: badJson,
+  })),
+  args: ['*/package.json', '--check', '--quiet'],
+  message: 'Should exit code 2.',
+})
+
 test('run `cli` on 2 good files and 2 bad files', macro.testCLI, {
   fixtures: [
     ...Array.from({ length: 2 }, (_, index) => ({
@@ -115,6 +252,23 @@ test('run `cli` on 2 good files and 2 bad files', macro.testCLI, {
   message: 'Should format 2 files.',
 })
 
+test('run `cli --quiet` on 2 good files and 2 bad files', macro.testCLI, {
+  fixtures: [
+    ...Array.from({ length: 2 }, (_, index) => ({
+      file: `bad-${index + 1}/package.json`,
+      content: badJson,
+      expect: goodJson,
+    })),
+    ...Array.from({ length: 2 }, (_, index) => ({
+      file: `good-${index + 1}/package.json`,
+      content: goodJson,
+      expect: goodJson,
+    })),
+  ],
+  args: ['*/package.json', '--quiet'],
+  message: 'Should format 2 files.',
+})
+
 test('run `cli --check` on 2 good files and 2 bad files', macro.testCLI, {
   fixtures: [
     ...Array.from({ length: 2 }, (_, index) => ({
@@ -132,6 +286,27 @@ test('run `cli --check` on 2 good files and 2 bad files', macro.testCLI, {
   message: 'Should report 2 files.',
 })
 
+test(
+  'run `cli --check --quiet` on 2 good files and 2 bad files',
+  macro.testCLI,
+  {
+    fixtures: [
+      ...Array.from({ length: 2 }, (_, index) => ({
+        file: `bad-${index + 1}/package.json`,
+        content: badJson,
+        expect: badJson,
+      })),
+      ...Array.from({ length: 2 }, (_, index) => ({
+        file: `good-${index + 1}/package.json`,
+        content: goodJson,
+        expect: goodJson,
+      })),
+    ],
+    args: ['*/package.json', '--check', '--quiet'],
+    message: 'Should exit code 2.',
+  },
+)
+
 test('run `cli` on none exists file', macro.testCLI, {
   fixtures: [
     {
@@ -144,6 +319,18 @@ test('run `cli` on none exists file', macro.testCLI, {
   message: 'Should report no files matching.',
 })
 
+test('run `cli --quiet` on none exists file', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'package.json',
+      content: badJson,
+      expect: badJson,
+    },
+  ],
+  args: ['NONE_EXISTS_FILE', '--quiet'],
+  message: 'Should report no files matching.',
+})
+
 test('run `cli --check` on none exists file', macro.testCLI, {
   fixtures: [
     {
@@ -156,6 +343,18 @@ test('run `cli --check` on none exists file', macro.testCLI, {
   message: 'Should report no files matching.',
 })
 
+test('run `cli --check --quiet` on none exists file', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'package.json',
+      content: badJson,
+      expect: badJson,
+    },
+  ],
+  args: ['NONE_EXISTS_FILE', '--check', '--quiet'],
+  message: 'Should report no files matching regardless of quiet.',
+})
+
 test('run `cli` on duplicate patterns', macro.testCLI, {
   fixtures: [
     {
@@ -210,3 +409,32 @@ test('run `cli --check` on duplicate patterns', macro.testCLI, {
   ],
   message: 'Should not list `bad-1/package.json` more than once.',
 })
+
+test('run `cli --check --quiet` on duplicate patterns', macro.testCLI, {
+  fixtures: [
+    {
+      file: 'bad-1/package.json',
+      content: badJson,
+      expect: badJson,
+    },
+    {
+      file: 'good-1/package.json',
+      content: goodJson,
+      expect: goodJson,
+    },
+    {
+      file: 'good-2/package.json',
+      content: goodJson,
+      expect: goodJson,
+    },
+  ],
+  args: [
+    'bad-1/package.json',
+    'bad-1/package.json',
+    'bad-*/package.json',
+    '*/package.json',
+    '--check',
+    '--quiet',
+  ],
+  message: 'Should not count `bad-1/package.json` more than once. Exit code 1',
+})
diff --git a/tests/snapshots/cli.js.md b/tests/snapshots/cli.js.md
index 9e4bf27f..25b467ce 100644
--- a/tests/snapshots/cli.js.md
+++ b/tests/snapshots/cli.js.md
@@ -4,6 +4,204 @@ The actual snapshot is saved in `cli.js.snap`.
 
 Generated by [AVA](https://avajs.dev).
 
+## run `cli --help`
+
+> Should report help menu.
+
+    {
+      args: [
+        '--help',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `Usage: sort-package-json [OPTION...] [FILE...]␊
+        Sort npm package.json files. Default: ./package.json␊
+        Strings passed as files are parsed as globs.␊
+        ␊
+          -c, --check                check if FILES are sorted␊
+          -q, --quiet                don't output success messages␊
+          -h, --help                 display this help and exit␊
+          -v, --version              display the version and exit␊
+          ␊
+        `,
+      },
+    }
+
+## run `cli --help --quiet`
+
+> Should report help menu overriding quiet.
+
+    {
+      args: [
+        '--help',
+        '--quiet',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `Usage: sort-package-json [OPTION...] [FILE...]␊
+        Sort npm package.json files. Default: ./package.json␊
+        Strings passed as files are parsed as globs.␊
+        ␊
+          -c, --check                check if FILES are sorted␊
+          -q, --quiet                don't output success messages␊
+          -h, --help                 display this help and exit␊
+          -v, --version              display the version and exit␊
+          ␊
+        `,
+      },
+    }
+
+## run `cli -h`
+
+> Should support help alias.
+
+    {
+      args: [
+        '-h',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `Usage: sort-package-json [OPTION...] [FILE...]␊
+        Sort npm package.json files. Default: ./package.json␊
+        Strings passed as files are parsed as globs.␊
+        ␊
+          -c, --check                check if FILES are sorted␊
+          -q, --quiet                don't output success messages␊
+          -h, --help                 display this help and exit␊
+          -v, --version              display the version and exit␊
+          ␊
+        `,
+      },
+    }
+
+## run `cli --help` with other arguments
+
+> Should prioritize help argument.
+
+    {
+      args: [
+        'NONE_EXISTS_FILE',
+        '--help',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `Usage: sort-package-json [OPTION...] [FILE...]␊
+        Sort npm package.json files. Default: ./package.json␊
+        Strings passed as files are parsed as globs.␊
+        ␊
+          -c, --check                check if FILES are sorted␊
+          -q, --quiet                don't output success messages␊
+          -h, --help                 display this help and exit␊
+          -v, --version              display the version and exit␊
+          ␊
+        `,
+      },
+    }
+
+## run `cli --version`
+
+> Should report version number.
+
+    {
+      args: [
+        '--version',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `sort-package-json 0.0.0-development␊
+        `,
+      },
+    }
+
+## run `cli --version --quiet`
+
+> Should report version overriding quiet.
+
+    {
+      args: [
+        '--version',
+        '--quiet',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `sort-package-json 0.0.0-development␊
+        `,
+      },
+    }
+
+## run `cli -v`
+
+> Should support version alias.
+
+    {
+      args: [
+        '-v',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `sort-package-json 0.0.0-development␊
+        `,
+      },
+    }
+
+## run `cli --version` with other arguments
+
+> Should prioritize version argument.
+
+    {
+      args: [
+        'NONE_EXISTS_FILE',
+        '--version',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `sort-package-json 0.0.0-development␊
+        `,
+      },
+    }
+
+## run `cli --help` with `--version`
+
+> Should prioritize help over version.
+
+    {
+      args: [
+        '--version',
+        '--help',
+      ],
+      fixtures: [],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `Usage: sort-package-json [OPTION...] [FILE...]␊
+        Sort npm package.json files. Default: ./package.json␊
+        Strings passed as files are parsed as globs.␊
+        ␊
+          -c, --check                check if FILES are sorted␊
+          -q, --quiet                don't output success messages␊
+          -h, --help                 display this help and exit␊
+          -v, --version              display the version and exit␊
+          ␊
+        `,
+      },
+    }
+
 ## run `cli` with no patterns
 
 > Should format package.json.
@@ -31,9 +229,65 @@ Generated by [AVA](https://avajs.dev).
       },
     }
 
+## run `cli --quiet` with no patterns
+
+> Should format package.json without message.
+
+    {
+      args: [
+        '--quiet',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: '',
+      },
+    }
+
+## run `cli -q` with no patterns
+
+> Should support -q alias.
+
+    {
+      args: [
+        '-q',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: '',
+      },
+    }
+
 ## run `cli --check` with no patterns
 
-> Should package.json is not sorted
+> Should not sort package.json
 
     {
       args: [
@@ -62,6 +316,35 @@ Generated by [AVA](https://avajs.dev).
       },
     }
 
+## run `cli --check --quiet` with no patterns
+
+> Should not sort package.json or report a message.
+
+    {
+      args: [
+        '--check',
+        '--quiet',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: 1,
+        stderr: '',
+        stdout: '',
+      },
+    }
+
 ## run `cli -c` with no patterns
 
 > Should support `-c` alias
@@ -76,7 +359,240 @@ Generated by [AVA](https://avajs.dev).
             "version": "1.0.0",␊
             "name": "sort-package-json"␊
           }`,
-          file: 'package.json',
+          file: 'package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: 1,
+        stderr: '',
+        stdout: `package.json␊
+        ␊
+        1 of 1 matched file is not sorted.␊
+        `,
+      },
+    }
+
+## run `cli -c -q` with no patterns
+
+> Should support `-q` alias
+
+    {
+      args: [
+        '-c',
+        '-q',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: 1,
+        stderr: '',
+        stdout: '',
+      },
+    }
+
+## run `cli` on 1 bad file
+
+> Should format 1 file.
+
+    {
+      args: [
+        '*/package.json',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'bad/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `bad/package.json is sorted!␊
+        `,
+      },
+    }
+
+## run `cli --quiet` on 1 bad file
+
+> Should format 1 file without message.
+
+    {
+      args: [
+        '*/package.json',
+        '--quiet',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'bad/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: '',
+      },
+    }
+
+## run `cli --check` on 1 bad file
+
+> Should report 1 file.
+
+    {
+      args: [
+        '*/package.json',
+        '--check',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'bad/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: 1,
+        stderr: '',
+        stdout: `bad/package.json␊
+        ␊
+        1 of 1 matched file is not sorted.␊
+        `,
+      },
+    }
+
+## run `cli --check --quiet` on 1 bad file
+
+> Should exit code 1 without report.
+
+    {
+      args: [
+        '*/package.json',
+        '--check',
+        '--quiet',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'bad/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: 1,
+        stderr: '',
+        stdout: '',
+      },
+    }
+
+## run `cli` on 2 bad files
+
+> Should format 2 files.
+
+    {
+      args: [
+        '*/package.json',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'bad-1/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'bad-2/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: null,
+        stderr: '',
+        stdout: `bad-1/package.json is sorted!␊
+        bad-2/package.json is sorted!␊
+        `,
+      },
+    }
+
+## run `cli --check` on 2 bad files
+
+> Should report 2 files.
+
+    {
+      args: [
+        '*/package.json',
+        '--check',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'bad-1/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'bad-2/package.json',
           original: `{␊
             "version": "1.0.0",␊
             "name": "sort-package-json"␊
@@ -84,22 +600,24 @@ Generated by [AVA](https://avajs.dev).
         },
       ],
       result: {
-        errorCode: 1,
+        errorCode: 2,
         stderr: '',
-        stdout: `package.json␊
+        stdout: `bad-1/package.json␊
+        bad-2/package.json␊
         ␊
-        1 of 1 matched file is not sorted.␊
+        2 of 2 matched files are not sorted.␊
         `,
       },
     }
 
-## run `cli` on 1 bad file
+## run `cli --quiet` on 2 bad files
 
-> Should format 1 file.
+> Should format 2 files without messages.
 
     {
       args: [
         '*/package.json',
+        '--quiet',
       ],
       fixtures: [
         {
@@ -107,7 +625,18 @@ Generated by [AVA](https://avajs.dev).
             "name": "sort-package-json",␊
             "version": "1.0.0"␊
           }`,
-          file: 'bad/package.json',
+          file: 'bad-1/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'bad-2/package.json',
           original: `{␊
             "version": "1.0.0",␊
             "name": "sort-package-json"␊
@@ -117,19 +646,19 @@ Generated by [AVA](https://avajs.dev).
       result: {
         errorCode: null,
         stderr: '',
-        stdout: `bad/package.json is sorted!␊
-        `,
+        stdout: '',
       },
     }
 
-## run `cli --check` on 1 bad file
+## run `cli --check --quiet` on 2 bad files
 
-> Should report 1 file.
+> Should exit code 2.
 
     {
       args: [
         '*/package.json',
         '--check',
+        '--quiet',
       ],
       fixtures: [
         {
@@ -137,7 +666,18 @@ Generated by [AVA](https://avajs.dev).
             "version": "1.0.0",␊
             "name": "sort-package-json"␊
           }`,
-          file: 'bad/package.json',
+          file: 'bad-1/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'bad-2/package.json',
           original: `{␊
             "version": "1.0.0",␊
             "name": "sort-package-json"␊
@@ -145,16 +685,13 @@ Generated by [AVA](https://avajs.dev).
         },
       ],
       result: {
-        errorCode: 1,
+        errorCode: 2,
         stderr: '',
-        stdout: `bad/package.json␊
-        ␊
-        1 of 1 matched file is not sorted.␊
-        `,
+        stdout: '',
       },
     }
 
-## run `cli` on 2 bad files
+## run `cli` on 2 good files and 2 bad files
 
 > Should format 2 files.
 
@@ -185,6 +722,28 @@ Generated by [AVA](https://avajs.dev).
             "name": "sort-package-json"␊
           }`,
         },
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'good-1/package.json',
+          original: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+        },
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'good-2/package.json',
+          original: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+        },
       ],
       result: {
         errorCode: null,
@@ -195,20 +754,20 @@ Generated by [AVA](https://avajs.dev).
       },
     }
 
-## run `cli --check` on 2 bad files
+## run `cli --quiet` on 2 good files and 2 bad files
 
-> Should report 2 files.
+> Should format 2 files.
 
     {
       args: [
         '*/package.json',
-        '--check',
+        '--quiet',
       ],
       fixtures: [
         {
           expect: `{␊
-            "version": "1.0.0",␊
-            "name": "sort-package-json"␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
           }`,
           file: 'bad-1/package.json',
           original: `{␊
@@ -218,8 +777,8 @@ Generated by [AVA](https://avajs.dev).
         },
         {
           expect: `{␊
-            "version": "1.0.0",␊
-            "name": "sort-package-json"␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
           }`,
           file: 'bad-2/package.json',
           original: `{␊
@@ -227,31 +786,50 @@ Generated by [AVA](https://avajs.dev).
             "name": "sort-package-json"␊
           }`,
         },
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'good-1/package.json',
+          original: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+        },
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'good-2/package.json',
+          original: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+        },
       ],
       result: {
-        errorCode: 2,
+        errorCode: null,
         stderr: '',
-        stdout: `bad-1/package.json␊
-        bad-2/package.json␊
-        ␊
-        2 of 2 matched files are not sorted.␊
-        `,
+        stdout: '',
       },
     }
 
-## run `cli` on 2 good files and 2 bad files
+## run `cli --check` on 2 good files and 2 bad files
 
-> Should format 2 files.
+> Should report 2 files.
 
     {
       args: [
         '*/package.json',
+        '--check',
       ],
       fixtures: [
         {
           expect: `{␊
-            "name": "sort-package-json",␊
-            "version": "1.0.0"␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
           }`,
           file: 'bad-1/package.json',
           original: `{␊
@@ -261,8 +839,8 @@ Generated by [AVA](https://avajs.dev).
         },
         {
           expect: `{␊
-            "name": "sort-package-json",␊
-            "version": "1.0.0"␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
           }`,
           file: 'bad-2/package.json',
           original: `{␊
@@ -294,22 +872,25 @@ Generated by [AVA](https://avajs.dev).
         },
       ],
       result: {
-        errorCode: null,
+        errorCode: 2,
         stderr: '',
-        stdout: `bad-1/package.json is sorted!␊
-        bad-2/package.json is sorted!␊
+        stdout: `bad-1/package.json␊
+        bad-2/package.json␊
+        ␊
+        2 of 4 matched files are not sorted.␊
         `,
       },
     }
 
-## run `cli --check` on 2 good files and 2 bad files
+## run `cli --check --quiet` on 2 good files and 2 bad files
 
-> Should report 2 files.
+> Should exit code 2.
 
     {
       args: [
         '*/package.json',
         '--check',
+        '--quiet',
       ],
       fixtures: [
         {
@@ -360,11 +941,7 @@ Generated by [AVA](https://avajs.dev).
       result: {
         errorCode: 2,
         stderr: '',
-        stdout: `bad-1/package.json␊
-        bad-2/package.json␊
-        ␊
-        2 of 4 matched files are not sorted.␊
-        `,
+        stdout: '',
       },
     }
 
@@ -391,9 +968,39 @@ Generated by [AVA](https://avajs.dev).
       ],
       result: {
         errorCode: 1,
-        stderr: '',
-        stdout: `No matching files.␊
+        stderr: `No matching files.␊
+        `,
+        stdout: '',
+      },
+    }
+
+## run `cli --quiet` on none exists file
+
+> Should report no files matching.
+
+    {
+      args: [
+        'NONE_EXISTS_FILE',
+        '--quiet',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: 1,
+        stderr: `No matching files.␊
         `,
+        stdout: '',
       },
     }
 
@@ -421,9 +1028,40 @@ Generated by [AVA](https://avajs.dev).
       ],
       result: {
         errorCode: 1,
-        stderr: '',
-        stdout: `No matching files.␊
+        stderr: `No matching files.␊
+        `,
+        stdout: '',
+      },
+    }
+
+## run `cli --check --quiet` on none exists file
+
+> Should report no files matching regardless of quiet.
+
+    {
+      args: [
+        'NONE_EXISTS_FILE',
+        '--check',
+        '--quiet',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: 1,
+        stderr: `No matching files.␊
         `,
+        stdout: '',
       },
     }
 
@@ -537,3 +1175,58 @@ Generated by [AVA](https://avajs.dev).
         `,
       },
     }
+
+## run `cli --check --quiet` on duplicate patterns
+
+> Should not count `bad-1/package.json` more than once. Exit code 1
+
+    {
+      args: [
+        'bad-1/package.json',
+        'bad-1/package.json',
+        'bad-*/package.json',
+        '*/package.json',
+        '--check',
+        '--quiet',
+      ],
+      fixtures: [
+        {
+          expect: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+          file: 'bad-1/package.json',
+          original: `{␊
+            "version": "1.0.0",␊
+            "name": "sort-package-json"␊
+          }`,
+        },
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'good-1/package.json',
+          original: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+        },
+        {
+          expect: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+          file: 'good-2/package.json',
+          original: `{␊
+            "name": "sort-package-json",␊
+            "version": "1.0.0"␊
+          }`,
+        },
+      ],
+      result: {
+        errorCode: 1,
+        stderr: '',
+        stdout: '',
+      },
+    }
diff --git a/tests/snapshots/cli.js.snap b/tests/snapshots/cli.js.snap
index 4cfe5476..968ae376 100644
Binary files a/tests/snapshots/cli.js.snap and b/tests/snapshots/cli.js.snap differ