Answer by Krzysztof Krasoń for Linux: using find to locate files older than

If you have only '-newer file' then you can use this workaround:

# create 'some_file' having a creation date of 16 Mar 2010:touch -t 201003160120 some_file# find all files created after this datefind . -newer some_file

man touch:

  -t STAMP          use [[CC]YY]MMDDhhmm[.ss] instead of current time

Assuming that your touch has this option (mine is touch 5.97).