How to join multiple lines of filenames into one with custom delimiter

Matheus Mello
Matheus Mello
September 2, 2023
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How to Join Multiple Lines of Filenames into One with a Custom Delimiter 💻🔗

Have you ever found yourself overwhelmed by a long list of filenames returned by the ls -1 command? 📂📜 Is your goal to consolidate these filenames into a single line, making it easier to manipulate or analyze? 🔄

In this blog post, we will address the common issue of joining multiple lines of filenames into one and delimiting them with a custom delimiter. We will provide you with easy solutions and a step-by-step guide to help you achieve your goal. Let's get started! 🚀

The Challenge 🤔

By default, the ls -1 command lists filenames each on a new line. However, there may be situations where you want to combine these filenames into one line, separated by a specific delimiter of your choice. This can be particularly useful if you need to pass the consolidated filenames as a single argument to another command or application.

Solution 1: Using paste Command 📋

One way to solve this challenge is by using the paste command, which can perform various text manipulation functions. To join multiple lines of filenames into one line, you can execute the following command:

ls -1 | paste -sd "<delimiter>"

Replace <delimiter> with your desired delimiter, such as a comma (,), a space ( ), or any other character or sequence of characters.

Let's assume we have the following filenames:

file1.txt
file2.txt
file3.txt

If we want to join these names with a comma delimiter, the command would look like this:

ls -1 | paste -sd ","

And the output would be:

file1.txt,file2.txt,file3.txt

Solution 2: Using awk Command 🎛️

Another approach is to utilize the awk command, which is a powerful tool for text processing. With awk, we can easily combine multiple lines of filenames into one line with a custom delimiter.

Execute the following command to achieve this:

ls -1 | awk '{ printf "%s<delimiter>", $0 }' | sed 's/<delimiter>$//'

Again, replace <delimiter> with your desired delimiter. Here's an example using a space as the delimiter:

ls -1 | awk '{ printf "%s ", $0 }' | sed 's/ $//'

This command will produce the following output:

file1.txt file2.txt file3.txt

Time to Put It into Action! ⚡️

Now that you've learned two different solutions for joining multiple lines of filenames into one with a custom delimiter, it's time to put this knowledge to work! 🤓

Choose the solution that suits your needs the best, and give it a try with your own set of filenames. Experiment with different delimiters to customize the output. You can even incorporate this technique into your scripts or automation workflows.

Feel free to leave a comment below sharing your experience or any further questions you may have. Your engagement is highly appreciated! 👇💬

Let's make file manipulation more efficient and join those filenames with style! 💪🔀

Happy coding! 💻✨

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