---
tags: 
parents: "[[Linux Wflow]]"
date/time: 2024-12-25T22:42:00
---

# USECASE

- AQA GCSE paper - name messed up therefore rename with metadata

```
exiftool  -s '-FileName<${Description}_${Title}.%e'  *.pdf 
```


# COPILOT

92dl92: whats the difference between the free account and paid one

GitHub Copilot: The main differences between a free GitHub account and a paid one (GitHub Pro) include:

1. **Private Repositories**:
   - Free: Unlimited private repositories with a limited number of collaborators.
   - Pro: Unlimited private repositories with unlimited collaborators.

2. **Features**:
   - Free: Basic features including issues, pull requests, and project management tools.
   - Pro: Additional features such as advanced code review tools, required reviewers, and more.

3. **Actions and Packages**:
   - Free: Limited usage of GitHub Actions and Packages.
   - Pro: Increased usage limits for GitHub Actions and Packages.

4. **Support**:
   - Free: Community support.
   - Pro: Email support.

5. **Insights and Analytics**:
   - Free: Basic insights.
   - Pro: Advanced insights and analytics.

For more detailed information, you can visit the [GitHub Pricing page](https://github.com/pricing).

92dl92: i meant copilot

GitHub Copilot: The main differences between the free and paid versions of GitHub Copilot are:

1. **Availability**:
   - Free: GitHub Copilot is available for free to verified students, teachers, and maintainers of popular open-source projects.
   - Paid: Available to individual developers and organizations with a subscription.

2. **Features**:
   - Both free and paid versions offer the same core features, including code suggestions, autocompletion, and assistance with writing code.

3. **Usage Limits**:
   - Free: May have some usage limitations or restrictions based on the specific program (e.g., student or open-source maintainer).
   - Paid: No usage limitations within the scope of the subscription.

For more detailed information, you can visit the [GitHub Copilot Pricing page](https://github.com/features/copilot).

92dl92: do you know about the exiftool

GitHub Copilot: Yes, ExifTool is a powerful command-line application for reading, writing, and editing metadata in a wide variety of file formats. It is commonly used for handling EXIF data in images, but it supports many other types of metadata and file formats as well.

### Key Features:
- **Read and Write Metadata**: Supports a wide range of metadata formats including EXIF, GPS, IPTC, XMP, JFIF, GeoTIFF, ICC Profile, Photoshop IRB, FlashPix, AFCP, and ID3.
- **Batch Processing**: Can process multiple files at once.
- **File Format Support**: Works with many file types including JPEG, PNG, TIFF, RAW, PDF, and more.
- **Customizable**: Allows for extensive customization and scripting.

### Basic Usage:
To use ExifTool, you can run commands in the terminal. Here are some basic examples:

- **View Metadata**:
  ```sh
  exiftool filename.jpg
  ```

- **Write Metadata**:
  ```sh
  exiftool -Artist="Your Name" filename.jpg
  ```

- **Copy Metadata from One File to Another**:
  ```sh
  exiftool -TagsFromFile src.jpg dst.jpg
  ```

- **Remove All Metadata**:
  ```sh
  exiftool -all= filename.jpg
  ```

### Installation:
On a Linux system, you can install ExifTool using the package manager. For example, on Ubuntu:
```sh
sudo apt-get install exiftool
```

For more detailed information and advanced usage, you can refer to the [ExifTool documentation](https://exiftool.org/).

92dl92: i would like to use exiftool to rename a file based on the value of two or three metadata items

GitHub Copilot: You can use ExifTool to rename files based on metadata values by specifying the desired metadata tags in the rename command. Here is an example of how to do this:

### Example Command:
Suppose you want to rename a file based on the date and time it was taken (`DateTimeOriginal`) and the camera model (`Model`):

```sh
exiftool '-FileName<DateTimeOriginal-${Model}.%e' -d '%Y%m%d_%H%M%S' filename.jpg
```

### Explanation:
- `'-FileName<DateTimeOriginal-${Model}.%e'`: This specifies the new filename format. The `<` operator is used to assign the value of the metadata tags to the filename. `${Model}` is the camera model, and `%e` is the original file extension.
- `-d '%Y%m%d_%H%M%S'`: This specifies the date format. `%Y` is the year, `%m` is the month, `%d` is the day, `%H` is the hour, `%M` is the minute, and `%S` is the second.
- `filename.jpg`: This is the original file.

### Example:
If the original file is named `filename.jpg` and the metadata values are:
- `DateTimeOriginal`: 2023:10:01 12:34:56
- `Model`: CanonEOS

The resulting filename would be:
```
20231001_123456-CanonEOS.jpg
```

### Batch Processing:
To rename multiple files in a directory, you can use a wildcard (`*`):

```sh
exiftool '-FileName<DateTimeOriginal-${Model}.%e' -d '%Y%m%d_%H%M%S' *.jpg
```

This command will rename all `.jpg` files in the current directory based on their `DateTimeOriginal` and `Model` metadata.

For more advanced usage and options, refer to the [ExifTool documentation](https://exiftool.org/).

92dl92: is the use of of the wildcard * equivalant to the -r flag

GitHub Copilot: No, the use of the wildcard `*` and the `-r` flag in ExifTool serve different purposes:

- **Wildcard `*`**: This is used to match multiple files in the current directory. For example, `*.jpg` will match all `.jpg` files in the current directory.

- **`-r` flag**: This flag stands for "recursive" and is used to process files in the current directory and all subdirectories.

### Example with Wildcard:
To rename all `.jpg` files in the current directory based on metadata:
```sh
exiftool '-FileName<DateTimeOriginal-${Model}.%e' -d '%Y%m%d_%H%M%S' *.jpg
```

### Example with `-r` Flag:
To rename all `.jpg` files in the current directory and all subdirectories based on metadata:
```sh
exiftool -r '-FileName<DateTimeOriginal-${Model}.%e' -d '%Y%m%d_%H%M%S' .
```

In this example, the `.` specifies the current directory, and the `-r` flag ensures that the command is applied recursively to all subdirectories.

Use the appropriate option based on whether you need to process files only in the current directory or also in its subdirectories.

92dl92: how would I read specific metadata

GitHub Copilot: To read specific metadata using ExifTool, you can specify the metadata tags you are interested in. Here is how you can do it:

### Example Command:
Suppose you want to read the `DateTimeOriginal` and `Model` metadata from a file:

```sh
exiftool -DateTimeOriginal -Model filename.jpg
```

### Explanation:
- `-DateTimeOriginal`: This specifies that you want to read the `DateTimeOriginal` metadata tag.
- `-Model`: This specifies that you want to read the `Model` metadata tag.
- `filename.jpg`: This is the file from which you want to read the metadata.

### Example Output:
The output will display the values of the specified metadata tags:
```
Date/Time Original              : 2023:10:01 12:34:56
Camera Model Name               : CanonEOS
```

### Reading Metadata from Multiple Files:
To read the specified metadata from multiple files, you can use a wildcard:

```sh
exiftool -DateTimeOriginal -Model *.jpg
```

### Reading Metadata Recursively:
To read the specified metadata from all files in the current directory and its subdirectories, use the `-r` flag:

```sh
exiftool -r -DateTimeOriginal -Model .
```

This command will read the `DateTimeOriginal` and `Model` metadata from all files in the current directory and its subdirectories.

For more detailed information and advanced usage, refer to the [ExifTool documentation](https://exiftool.org/).

92dl92: how can i see the list of tags for a file

GitHub Copilot: To see the list of all metadata tags for a file using ExifTool, you can simply run the command without specifying any specific tags. Here is how you can do it:

### Example Command:
```sh
exiftool filename.jpg
```

### Explanation:
- `filename.jpg`: This is the file for which you want to see the list of all metadata tags.

### Example Output:
The output will display all the metadata tags and their values for the specified file. It will look something like this:
```
ExifTool Version Number         : 12.00
File Name                       : filename.jpg
File Size                       : 2.3 MB
File Modification Date/Time     : 2023:10:01 12:34:56+00:00
...
Date/Time Original              : 2023:10:01 12:34:56
Camera Model Name               : CanonEOS
...
```

### Viewing Tags for Multiple Files:
To see the list of all metadata tags for multiple files, you can use a wildcard:

```sh
exiftool *.jpg
```

### Viewing Tags Recursively:
To see the list of all metadata tags for all files in the current directory and its subdirectories, use the `-r` flag:

```sh
exiftool -r .
```

This command will display all metadata tags for all files in the current directory and its subdirectories.

For more detailed information and advanced usage, refer to the [ExifTool documentation](https://exiftool.org/).

92dl92: some of the tags have spaces are there other identifies

GitHub Copilot: Yes, ExifTool provides alternative tag names (also known as "short" or "family 1" group names) that do not contain spaces. These can be used in commands to avoid issues with spaces in tag names.

### Example:
To read the `Date/Time Original` and `Camera Model Name` tags using their alternative identifiers:

```sh
exiftool -DateTimeOriginal -Model filename.jpg
```

### Finding Alternative Identifiers:
To find the alternative identifiers for all tags in a file, you can use the `-s` option, which displays the short names of the tags:

```sh
exiftool -s filename.jpg
```

### Example Output:
The output will display the short names of the tags:
```
ExifToolVersion                 : 12.00
FileName                        : filename.jpg
FileSize                        : 2.3 MB
FileModifyDate                  : 2023:10:01 12:34:56+00:00
...
DateTimeOriginal                : 2023:10:01 12:34:56
Model                           : CanonEOS
...
```

### Using Family 1 Group Names:
You can also use family 1 group names to specify the tag more precisely. For example:

```sh
exiftool -EXIF:DateTimeOriginal -EXIF:Model filename.jpg
```

### Example Command with Family 1 Group Names:
```sh
exiftool -EXIF:DateTimeOriginal -EXIF:Model filename.jpg
```

This command will read the `DateTimeOriginal` and `Model` tags from the EXIF group.

For more detailed information and advanced usage, refer to the [ExifTool documentation](https://exiftool.org/).

92dl92: to recap, I want to rename  file as <Desctiption>_<Title>.pdf  where metad data are strings 

GitHub Copilot: To rename a file based on the `Description` and `Title` metadata tags using ExifTool, you can use the following command:

### Command:
```sh
exiftool '-FileName<${Description}_${Title}.%e' filename.pdf
```

### Explanation:
- `'-FileName<${Description}_${Title}.%e'`: This specifies the new filename format. The `<` operator is used to assign the value of the metadata tags to the filename. `${Description}` and `${Title}` are the metadata tags, and `%e` is the original file extension.
- `filename.pdf`: This is the original file.

### Example:
If the original file is named `filename.pdf` and the metadata values are:
- `Description`: "ProjectReport"
- `Title`: "Q4Summary"

The resulting filename would be:
```
ProjectReport_Q4Summary.pdf
```

### Batch Processing:
To rename multiple PDF files in a directory based on their `Description` and `Title` metadata, you can use a wildcard:

```sh
exiftool '-FileName<${Description}_${Title}.%e' *.pdf
```

### Recursive Processing:
To rename all PDF files in the current directory and its subdirectories based on their `Description` and `Title` metadata, use the `-r` flag:

```sh
exiftool -r '-FileName<${Description}_${Title}.%e' ./*.pdf
```

This command will rename all `.pdf` files in the current directory and its subdirectories based on their `Description` and `Title` metadata.

For more detailed information and advanced usage, refer to the [ExifTool documentation](https://exiftool.org/).
																				