How to rename multiple files?

To rename multiple files in a Unix-like operating system, you can use a loop in the terminal or a command like rename. Here are two common methods:

Method 1: Using a Loop in Bash

You can use a for loop to rename multiple files. For example, if you want to rename all .txt files by adding a prefix "new_":

for file in *.txt; do
    mv "$file" "new_$file"
done

Method 2: Using the rename Command

If your system has the rename command (also known as prename), you can use it to rename files based on patterns. For example, to rename all .txt files to .bak:

rename 's/\.txt$/.bak/' *.txt

Notes:

• Make sure to check the files before running these commands to avoid unintended changes.
• You can use ls to verify the changes after renaming.

If you need more specific examples or have further questions, feel free to ask!