CODEWITHSUNDEEP
linuxbashunix
Brandon
Brandon

Reputation: 13

Renaming multiple different file extensions with BASH script

I'm trying to create a bash script that takes a directory full of files (about 500 files) that have all different types of extensions (no seriously, like 30 different types of extensions) and I want get rid of all of the extensions, and replace them with .txt

I've been searching around for a while now, and can only find examples of taking a specified extension, and changing it to another specified extension. Like png --> jpg, or .doc --> .txt

Here's an example I've found:

# Rename all *.txt to *.text
for f in *.txt; do 
mv -- "$f" "${f%.txt}.text"
done

This works, but only if you go from .txt to .text, I have multiple different extensions I'm working with.

My current code is:

directory=$1
for item in $directory/*
do
echo mv -- "$item" "$item.txt";
done

This will append the .txt onto them, but unfortunately I am left with the previous ones still attached. E.G. filename.etc.txt, filename.bla.txt

Am I going about this wrong? Any help is greatly appreciated.

Upvotes: 1

Views: 661

Answers (1)

o11c
o11c

Reputation: 16036

It's a trivial change to the first example:

cd "$directory"
# Rename all files to *.txt
for f in *
do 
    mv -- "$f" "${f%.*}.txt"
done

If a file contains multiple extensions, this will replace only the last one. To remove all extensions, use %% in place of %.

Upvotes: 1

Related Questions