diff --git a/src/commands/checkin.ts b/src/commands/checkin.ts
new file mode 100644
index 0000000..ec2ee5b
--- /dev/null
+++ b/src/commands/checkin.ts
@@ -0,0 +1,30 @@
+import {Args, Command, Flags} from '@oclif/core'
+
+export default class Checkin extends Command {
+  static description = 'describe the command here'
+
+  static examples = [
+    '<%= config.bin %> <%= command.id %>',
+  ]
+
+  static flags = {
+    // flag with a value (-n, --name=VALUE)
+    name: Flags.string({char: 'n', description: 'name to print'}),
+    // flag with no value (-f, --force)
+    force: Flags.boolean({char: 'f'}),
+  }
+
+  static args = {
+    file: Args.string({description: 'file to read'}),
+  }
+
+  public async run(): Promise<void> {
+    const {args, flags} = await this.parse(Checkin)
+
+    const name = flags.name ?? 'world'
+    this.log(`hello ${name} from src/commands/checkin.ts`)
+    if (args.file && flags.force) {
+      this.log(`you input --force and --file: ${args.file}`)
+    }
+  }
+}
diff --git a/src/commands/checkout.ts b/src/commands/checkout.ts
new file mode 100644
index 0000000..b9f13ac
--- /dev/null
+++ b/src/commands/checkout.ts
@@ -0,0 +1,30 @@
+import {Args, Command, Flags} from '@oclif/core'
+
+export default class Checkout extends Command {
+  static description = 'describe the command here'
+
+  static examples = [
+    '<%= config.bin %> <%= command.id %>',
+  ]
+
+  static flags = {
+    // flag with a value (-n, --name=VALUE)
+    name: Flags.string({char: 'n', description: 'name to print'}),
+    // flag with no value (-f, --force)
+    force: Flags.boolean({char: 'f'}),
+  }
+
+  static args = {
+    file: Args.string({description: 'file to read'}),
+  }
+
+  public async run(): Promise<void> {
+    const {args, flags} = await this.parse(Checkout)
+
+    const name = flags.name ?? 'world'
+    this.log(`hello ${name} from src/commands/checkout.ts`)
+    if (args.file && flags.force) {
+      this.log(`you input --force and --file: ${args.file}`)
+    }
+  }
+}
diff --git a/test/commands/checkin.test.ts b/test/commands/checkin.test.ts
new file mode 100644
index 0000000..472b202
--- /dev/null
+++ b/test/commands/checkin.test.ts
@@ -0,0 +1,17 @@
+import {expect, test} from '@oclif/test'
+
+describe('checkin', () => {
+  test
+  .stdout()
+  .command(['checkin'])
+  .it('runs hello', ctx => {
+    expect(ctx.stdout).to.contain('hello world')
+  })
+
+  test
+  .stdout()
+  .command(['checkin', '--name', 'jeff'])
+  .it('runs hello --name jeff', ctx => {
+    expect(ctx.stdout).to.contain('hello jeff')
+  })
+})
diff --git a/test/commands/checkout.test.ts b/test/commands/checkout.test.ts
new file mode 100644
index 0000000..6ff3268
--- /dev/null
+++ b/test/commands/checkout.test.ts
@@ -0,0 +1,17 @@
+import {expect, test} from '@oclif/test'
+
+describe('checkout', () => {
+  test
+  .stdout()
+  .command(['checkout'])
+  .it('runs hello', ctx => {
+    expect(ctx.stdout).to.contain('hello world')
+  })
+
+  test
+  .stdout()
+  .command(['checkout', '--name', 'jeff'])
+  .it('runs hello --name jeff', ctx => {
+    expect(ctx.stdout).to.contain('hello jeff')
+  })
+})