Gfilui

I have subfolders with dashes (example subdir with name c-d). I need to rename all .jpg files in all subdirs. Any tips how to do it? I've tried many options, but nothing helped (I think because my subfolders contains dashes -) Thanks guys! :)

I have tried

find -name '*.jpg' -exec rename $RANDOM.jpg $RANDOM.jpg ;

but getting

(Missing operator before jpg?) syntax error at (user-supplied code)
line 3, near "2635.jpg" Bareword found where operator expected at
(eval 4) line 1, near "#line 1 2635.jpg"

There is no case for rename, because you may just do it with mv.

find -name '*.jpg' -exec bash -c 'mv -i "" "$RANDOM.jpg"' ;

mv -i means interactive. It asks before overwriting.

This is not testet in depth, just ad hoc, to make sure files will get different names. A little more testing would be:

find -name '*.jpg' -exec echo bash -c 'mv -i "" "$RANDOM.jpg"' ;

However, this will put all files to the current dir. Maybe using -execdir is an option?

find -name '*.jpg' -execdir bash -c 'mv -i "" "$RANDOM.jpg"' ;

However, make a backup, be careful about your data and so on. Mass actions with find are a sharp instrument. I take no responsibility.

AFAIK dashes have no horses in this race.

You're unclear about how you want files to renamed. As far as which files to rename you can use find to match all files according you the desired pattern containing a dash:

find [PATH...] -type f -name '*-*' | prename EXPR

If you want to match directories too you need to use the -depth option:

find [PATH...] -depth -name '*-*' | prename EXPR

I just tried this on sub-folders with a dash in their name, and it worked.

Renaming Portions of Filenames Recusively in Linux/Ubuntu

To rename files, you use the find command in conjunction with the rename command like this:

find -type f -execdir rename 's/OriginalText/NewText/' *.jpg '' ;

So if you want to replace all the dashes "-" in all the jpg filenames with underscores "_" then you would enter:

find -type f -execdir rename 's/-/_/' *.jpg '' ;