Rename all files in a folder using bash

Question

I have a folder with many files named as '00001.sdf', '00002.sdf' and so on. I want to add an 'M' character at the beginning of each file name, like this 'M00001.sdf', 'M00002.sdf. How can I do this using a bash command?

I copy pasted the title of your question in google and [Rename all files in directory from $filename_h to $filename_half?](http://stackoverflow.com/questions/7450818/rename-all-files-in-directory-from-filename-h-to-filename-half) was the first result. — f3xy, May 04 '17 at 14:42

score 0 · Answer 1 · answered May 04 '17 at 14:41

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Here is one way

for f in * ; do mv "$f" "M$f" ; done

answered May 04 '17 at 14:41

Srini V

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This worked! Thanks! – Marcos Santana May 04 '17 at 14:45
Well.. You can accept and close this thread if it solved your case# – Srini V May 04 '17 at 15:15

score 0 · Answer 2 · answered May 04 '17 at 14:53

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Another way is:

ls -1 *.sdf | awk '{ system("mv "$0" M"$0) }'

answered May 04 '17 at 14:53

Raman Sailopal

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score 0 · Accepted Answer · answered May 04 '17 at 15:02

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Alternatively if you have perl version of the rename utility:

rename 's/^0/M0/' *

answered May 04 '17 at 15:02

Arkadiusz Drabczyk

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Rename all files in a folder using bash

3 Answers3