英文:
Rename the directory and partial file renaming
问题
你可以使用Go语言的os包来进行文件和目录的重命名操作。以下是你提供的代码的翻译：
package main
import "os"
func main() {
os.Rename("LICENSE", "e")
}
这段代码将文件名LICENSE更改为e。
对于你想要做的两个需求，你可以参考以下方法：
-
更改目录名：你可以使用
os.Rename函数来更改目录名，与更改文件名的方式相同。 -
仅更改名称的一部分：如果你想要仅更改名称的一部分，你可以使用字符串操作来实现。例如，如果你有一个文件或目录名为
Example，你想要将Exa更改为Stq，那么你可以使用字符串替换函数来实现这个目标。以下是一个示例代码：
package main
import (
"fmt"
"strings"
)
func main() {
name := "Example"
newName := strings.Replace(name, "Exa", "Stq", 1)
fmt.Println(newName)
}
这段代码将输出Stqmple，即将Exa替换为Stq后的结果。
希望对你有帮助！
英文:
Go has this package and function
package main
import "os"
func main() {
os.Rename("LICENSE", "e")
}
This changes the filename LICENSE to e.
But what I want to do is the following and can't find how to do it. Ruby does this so should Go. Where should I look up?
-
Change the name of directory not files....
-
Rename just the part of the name. For example, if I have a file or directory "Example", I would want to change "Exa" to "Stq," then the word would be "Stqmple"
What package should I use?
Thanks in advance.
答案1
得分: 12
-
os.Rename可以在包括 Windows 在内的系统上正常工作，也可以用于重命名目录。唯一需要考虑的是该操作是否是原子操作，在所有主要平台上的答案都是肯定的。 -
如果你想要查找与某个模式匹配的文件和目录，你可以使用 filepath 包。这个包可以让你遍历一个目录，然后你可以检查每个文件并将其名称与你的要求进行匹配。请查看文档中的
func Walk和type WalkFn。http://golang.org/pkg/path/filepath/#Walk
下面是一个使用 Walk 在给定目录或其子目录中查找 png 文件的示例：
package main
import (
"flag"
"fmt"
"os"
"path/filepath"
)
var flagPath = flag.String("path", "", "recursively traverse path and print png filepaths to stdout.")
func visit(path string, f os.FileInfo, err error) error {
if filepath.Ext(path) == ".png" {
fmt.Println(path)
}
return nil
}
func main() {
flag.Parse()
if *flagPath == "" {
flag.Usage()
return
}
filepath.Walk(*flagPath, visit)
}
下面是一个 func visit 的示例，它可以实现你在评论中提到的功能，请确保导入了 "strings"：
func visit(path string, f os.FileInfo, err error) error {
if name := f.Name(); strings.HasPrefix(name, "name_") {
dir := filepath.Dir(path)
newname := strings.Replace(name, "name_", "name1_", 1)
newpath := filepath.Join(dir, newname)
fmt.Printf("mv %q %q\n", path, newpath)
os.Rename(path, newpath)
}
return nil
}
英文:
-
os.Renamewill work fine on directories, including windows. The only bit to question here is whether the operation is atomic, which on all major platforms the answer is yes. -
If you want to locate files and directories that match a pattern, you'll want to look at the filepath package. This will let you traverse a directory at which point you can inspect each file and match the name against your requirements. Look at
func Walkandtype WalkFnof the documentation. http://golang.org/pkg/path/filepath/#Walk
Here's an example of using Walk to locate png files in a given directory or any of its subdirectories:
package main
import (
"flag"
"fmt"
"os"
"path/filepath"
)
var flagPath = flag.String("path", "", "recursively traverse path and print png filepaths to stdout.")
func visit(path string, f os.FileInfo, err error) error {
if filepath.Ext(path) == ".png" {
fmt.Println(path)
}
return nil
}
func main() {
flag.Parse()
if *flagPath == "" {
flag.Usage()
return
}
filepath.Walk(*flagPath, visit)
}
Here's a func visit that does what your asking about in the comment, be sure to import "strings":
func visit(path string, f os.FileInfo, err error) error {
if name := f.Name(); strings.HasPrefix(name, "name_") {
dir := filepath.Dir(path)
newname := strings.Replace(name, "name_", "name1_", 1)
newpath := filepath.Join(dir, newname)
fmt.Printf("mv %q %q\n", path, newpath)
os.Rename(path, newpath)
}
return nil
}
答案2
得分: 0
首先，我认为os.Rename也可以重命名目录（至少在Unix下，目录也是文件）。
其次，也许你可以使用strings.Replace来处理这样的情况，或者在这里进行一些编程操作？
英文:
First I think that os.Rename also renames directories (which - at least under Unix - are files too).
Second: Maybe you could use strings.Replace for such things or do some programming here?
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