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apache2may be a bad example because that package is a metapackage that usually isn't even installed on systems running Apache. The command works - trycoreutils:dpkg -L coreutils | egrep '(bin|games)/'grep -Ew 'bin|sbin|games'instead, egrep is deprecated and you may as well search for sbin as well. Also, there is no reason to use aforloop here, using awhileloop as I did in my answer instead, means you don't need to worry about IFS and word splitting.man grep:Direct invocation as either egrep or fgrep is deprecated, but is provided to allow historical applications that rely on them to run unmodified.Also, you regex, will match any directory that contains eithergamesorbinwhich will include/usr/share/games/, and alsofoosbinaffand whatever else.