zip away imported catalog files
find . -name "import-catalog-201904\*" -exec zip import-catalog-201904.zip {} +
find . -name "import-catalog-201904\*" -delete
which masters were changed most?
find . -name "\*.xml" | grep mastercatalog | perl -pe 's/.\*\_mastercatalog\_(.\*?)\_.\*/\1/g' | sort | uniq -c | sort -n
what has been changed of a particular master over time?
find . -name "\*.xml" | grep mastercatalog | grep \_157425\_ | sort | xargs -n 2 icdiff | less