路径管理 – Tech blog

Author

Tony D

Published

March 27, 2025

A guide to managing file paths in R and Python, with a focus on the fs and here packages in R.

This document addresses the common challenge of managing file paths across different operating systems, such as Windows and Mac. It provides a guide to using dedicated packages in R and Python to handle file paths in a robust and reproducible way. The R section focuses on the fs package for a wide range of file system operations and the here package for creating project-relative paths that work seamlessly across different environments. The Python section is a placeholder for future content.

Since windows and mac have different file path, we use package to manage the file path.

R
Python

fs pacakge

Code

#pak::pkg_install('here')
#pak::pkg_install('fs')
library(fs)

Code

getwd()

list file in the current directory

Code

dir_ls()

show the current directory file info

Code

dir_info()

show the current directory file tree

Code

dir_tree()

create a new temp directory

Code

# create a new directory
tmp <- dir_create(file_temp())
tmp

create new files in that directory

Code

# create new files in that directory
file_create(path(tmp, "my-file.txt"))
dir_ls(tmp)

remove files from the directory

Code

# remove files from the directory
file_delete(path(tmp, "my-file.txt"))
dir_ls(tmp)

remove the directory

Code

# remove the directory
dir_delete(tmp)

here package

Code

library(here)

show project directory

Code

here()

show all file in the project directory

Code

list.files(here())

show one file path

here.png in images folder

Code

image_path=here('posts/path_managment/images','here.png')
image_path

---
title: "路径管理"
subtitle: "Path management"
author: "Tony D"
date: "2025-03-27"

categories: 
  - Tool
  - R
  - Python

  
execute:
  warning: false
  error: false
  eval: false

image: 'images/here.png'
---

A guide to managing file paths in R and Python, with a focus on the `fs` and `here` packages in R.

This document addresses the common challenge of managing file paths across different operating systems, such as Windows and Mac. It provides a guide to using dedicated packages in R and Python to handle file paths in a robust and reproducible way. The R section focuses on the `fs` package for a wide range of file system operations and the `here` package for creating project-relative paths that work seamlessly across different environments. The Python section is a placeholder for future content.

Since windows and mac have different file path, we use package to manage the file path.

::: panel-tabset


# R

## fs pacakge

```{r}
#pak::pkg_install('here')
#pak::pkg_install('fs')
library(fs)
```


```{r}
getwd()
```

### list file in the current directory

```{r}
dir_ls()
```


### show the current directory file info

```{r}
dir_info()
```


### show the current directory file tree

```{r}
dir_tree()
```


### create a new temp directory

```{r}
# create a new directory
tmp <- dir_create(file_temp())
tmp
```

### create new files in that directory

```{r}
# create new files in that directory
file_create(path(tmp, "my-file.txt"))
dir_ls(tmp)
```

### remove files from the directory

```{r}
# remove files from the directory
file_delete(path(tmp, "my-file.txt"))
dir_ls(tmp)
```


### remove the directory

```{r}
# remove the directory
dir_delete(tmp)
```


## here package

```{r}
library(here)
```



### show project directory
```{r}
here()
```

### show all file in the project directory
```{r}
list.files(here())
```


### show one file path

here.png in images folder

```{r}
image_path=here('posts/path_managment/images','here.png')
image_path
```

# Python
:::