$ touch somefile && sleep 2 && ./fix_accesstime.pl somefile
atime=1386693000, mtime=1386693000, ctime=1386693000 - initially
atime=1386693002, mtime=1386693000, ctime=1386693000 - after read
atime=1386693000, mtime=1386693000, ctime=1386693002 - after atime restored