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?

have a look at man rename (which is a perl tool, maybe you have to install perl). — F. Hauri - Give Up GitHub
– F. Hauri - Give Up GitHub, Commented Oct 6, 2015 at 15:04

Nguyen Sy Thanh Son · Accepted Answer · 2015-10-06 15:22:22Z

1

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.

edited Oct 6, 2015 at 15:22

answered Oct 6, 2015 at 15:14

Nguyen Sy Thanh Son

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7 Comments

Francis Salvamante Over a year ago

Should the path be a string? It gives me an error mv: cannot stat ‘/home/vianney/Downloads/Image Processing/Images/*’: No such file or directory

Nguyen Sy Thanh Son Over a year ago

I edited my command. And are you sure that your OS is using BASH as in the default?

Nguyen Sy Thanh Son Over a year ago

Check default shell by: echo $SHELL

Francis Salvamante Over a year ago

result of echo $SHELL == /bin/bash

Nguyen Sy Thanh Son Over a year ago

show me the output of command: for f in path_to_your_files/*; do echo "$f", done;

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