Append file extension on names of multiple files [duplicate]

Question

I have a folder containing 500 files like this:

 xaa xab xac xad aae aaf

I want to add ".txt" to the end of all of them to get something like this:

xaa.txt xab.txt xac.txt xad.txt

How would this be done?

There may be a duplicate Q out there, but the currently-linked one doesn't have answers for this question. — Jeff Schaller
– Jeff Schaller ♦, Commented Jul 18, 2017 at 20:21

RomanPerekhrest · Accepted Answer · 2017-07-18 17:06:34Z

2

With simple find + mv command:

find yourfolder/ -type f -exec mv {} {}".txt" \;

answered Jul 18, 2017 at 17:06

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Chris Davies · Accepted Answer · 2017-07-18 22:52:14Z

There are several ways. Here are three:

rename 's/$/.txt/' ??? # Might be prename on some systems for f in ???; do mv "$f" "$f.txt"; done find -maxdepth 1 -type f -exec mv {} '{}.txt' \;

2 Answers 2