Change extensions of all files in a folder

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This week I wanted to change all the .js files to .ts recursively in a folder. To change all .js files in the assets folder. With a bit of bash, using a for loop and mv I got the following command to rename all my .js to .ts files. for f in assets/*.js ; do mv -- ' $f ' ' ${ f %.js } .ts' ; done If you want to get notified of the next blog post, join the newsletter.

for f in assets/*.js; do mv -- "$f" "${f%.js}.ts"; done

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