Find
-- Find corrupted zip file
find . -name "*.zip" -exec unzip -t "{}" \; > rrrr.txt
find . -name "*.zip" -exec echo "{}" \;
{} means current file
-- Find file and limit the result
find 10587727/ -name "*.pdf" | head -2T
-- Find empty directory
find . -empty | sort
-- Find file lower than certain size:
find . -type f -size -200k -iname "*.pdf" -printf '%s %p\n'| sort -n | head -100`
Text Searching
cat zip_test.txt | grep pdf-archive.zip | sort | uniq
Notes to Remember 