Moving files from multiple numbered folders into one - using Bash loop and xargs

# 🔁 Moving files from multiple numbered folders into one - using Bash loop and xargs

Note: The `i` variable in a `for` loop and the `{}` placeholder used with `xargs -I{}` serve a similar purpose -
both are used to iterate over values and substitute them within the command being executed.

✅ Cleaner and simpler version using Bash for-loop:

for i in {10..29}; do
  mv "Folder-1-0$i"/* \
     "Folder-1-001/"
done

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🔹 For loop breakdown:
- `for i in {10..29}; do` : Loops through numbers from 10 to 29 (inclusive) using brace expansion.
- `$i` : Holds the current number in each iteration.
- `do ... done` : Body of the loop that runs your desired commands.

This method is clean, fast, and highly readable for ranges with known numeric patterns.
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✅ Alternative using seq and xargs:

seq 10 29 | xargs -I{} mv "Folder-1-0{}"/* \
                          "Folder-1-001/"

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🔹 xargs breakdown:
- `seq 10 29` : Generates a list of numbers from 10 to 29.
- `xargs -I{}` : For each number, replaces `{}` in the command with the current number.
- Each `mv` command moves the contents of one numbered folder into the target folder.

Useful when working with piped input or dynamic file lists from other commands.
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Bonus:
Extract multiple zip files in PWD (using for loop):
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for file in *.zip; do
    dir="${file%.zip}"
    unzip "$file" -d "$dir"
done
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