renaming file using shell script

Question

I have tons of image inside a folder and it also has different file types. I have tried googling for an answer but I can’t seem to find one. I wanted the files to be named 1.jpg, 2.png, 3.gif. . . n.JPEG. Could someone help me out with this?

Answer

Try the command below:

cd path_to_your_files
declare -i i=0; for f in *; do i=$((i+1));fn=$i".${f##*.}"; mv "$f" "$fn"; done

Make note that the command above is a bash script.

Accepted Answer

Try the command below:cd path_to_your_filesdeclare -i i=0; for f in *; do i=$((i+1));fn=$i".${f##*.}"; mv "$f" "$fn"; doneMake note that the command above is a bash script.

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Answer