github.com/u-root/u-root@v7.0.1-0.20200915234505-ad7babab0a8e+incompatible/cmds/exp/ash/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  func init() {
    14  	addBuiltIn("cd", cd)
    15  }
    16  
    17  func cd(c *Command) error {
    18  	if len(c.argv) != 1 {
    19  		return errors.New("usage: cd one-path")
    20  	}
    21  
    22  	err := os.Chdir(c.argv[0])
    23  	return err
    24  }