github.com/mvdan/u-root-coreutils@v0.0.0-20230122170626-c2eef2898555/cmds/exp/rush/cd.go (about)

     1  // Copyright 2012 the u-root Authors. All rights reserved
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  // our first builtin: cd
     6  package main
     7  
     8  import (
     9  	"errors"
    10  	"os"
    11  )
    12  
    13  var errCdUsage = errors.New("usage: cd one-path")
    14  
    15  func init() {
    16  	addBuiltIn("cd", cd)
    17  }
    18  
    19  func cd(c *Command) error {
    20  	if len(c.argv) != 1 {
    21  		return errCdUsage
    22  	}
    23  
    24  	err := os.Chdir(c.argv[0])
    25  	return err
    26  }