Use the lslpp command to get information about a given fileset (including installed files).

lslpp -l               # List all filesets
lslpp -h $FILESET_NAME # Detailed fileset information

Some versions of AIX can also apparently use the RPM package manager.

Match files to packages in Red Hat-based operating systems

# List all installed packages
#
rpm -qa
 
# List files in an installed package
#
rpm -ql $PACKAGE_NAME
 
# List the package that owns a particular file
#
rpm -qf $FULL_PATH_TO_FILE

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