How to find + convert on these .gif?

Question

I want find a list of .gif files, convert them all to series of png images with filename identifiers and loop those series in this LaTeX. I am thining here how to combine the find + convert.

1. I can list .gif file by :

   find -L *.gif -type f
   

2. I can convert .gif image to a series of png images BUT without own identifier

   # TODO take filename from find list and give to convert and to the resulted filename
   convert -coalesce giphy.gif out%05d.png
   

Pseudocode where {}.png tries to say that take the new filename from the list of filenames but I think it cannot work because the list contains also .gif extension so it should be removed :

find -L *.gif -type f -exec convert -coalesce {} {}.png +

OS: Debian 8.7

Answer 1

With zsh

autoload -U zmv # best in ~/.zshrc

splitgif() convert -coalesce "$@"
zmv -p splitgif './(***/)(*).gif(#q-.)' './${1//\%/%%}${2//\%/%%}%05d.png'

Note the need for ./ to avoid problems with files named gif:whatever.gif for instance and ${1//\%/%%} to escape the % characters that may be found in the file paths.

• *** is the same as ** but follows symlinks when descending the directory tree like your -L
• (#q...) glob qualifier
• -: apply the following checks to the target of the symlink for symlinks (stat() instead lstat()) like with your -L.
• .: only regular files (equivalent of -type f)

Answer 2

Steeldriver's great answer in comment

 find -L . -name '*.gif' -execdir sh -c 'for f; 
      do convert -coalesce "$f" "${f%.gif}%05d.png"; 
 done' sh {} +