for i in *.pk3 ; do unzip -t $i | grep maps | grep \.bsp ; done > /tmp/maps.txt

    testing: maps/aggressor.bsp       OK
    testing: maps/am_galmevish2.bsp   OK
    testing: maps/am_galmevish.bsp    OK
    testing: maps/am_lavaarena.bsp    OK
    testing: maps/am_lavactf.bsp      OK
    testing: maps/am_lavactfxl.bsp    OK
    testing: maps/am_mckinleyish2.bsp   OK
    testing: maps/am_spacecont.bsp    OK
    testing: maps/am_thornish.bsp     OK
    testing: maps/am_underworks2.bsp   OK
    testing: maps/am_underworks.bsp   OK
    testing: maps/blitzkrieg3.bsp     OK
    testing: maps/cbctf1.bsp          OK
    testing: maps/ce1m7.bsp           OK
    testing: maps/ctf_compromise.bsp   OK
    testing: maps/ctf_gate1.bsp       OK
    testing: maps/ctf_inyard.bsp      OK
    testing: maps/czest1dm.bsp        OK
    testing: maps/czest1tourney.bsp   OK
    testing: maps/czest2ctf.bsp       OK
    testing: maps/czest3ctf.bsp       OK
    testing: maps/delta.bsp           OK
    testing: maps/dm4ish.bsp          OK
    testing: maps/dm6ish.bsp          OK
    testing: maps/fan.bsp             OK
    testing: maps/hydronex2.bsp       OK
    testing: maps/hydronex.bsp        OK
    testing: maps/islandctf.bsp       OK
    testing: maps/islanddm.bsp        OK
    testing: maps/kaos2.bsp           OK
    testing: maps/kaos.bsp            OK
    testing: maps/mlca1.bsp           OK
    testing: maps/mlctf1beta.bsp      OK
    testing: maps/oa_bases3.bsp       OK
    testing: maps/oa_bases3cl.bsp     OK
    testing: maps/oa_bases3p3ta.bsp   OK
    testing: maps/oa_bases3plus3.bsp   OK
    testing: maps/oa_bases5.bsp       OK
    testing: maps/oa_bases7.bsp       OK
    testing: maps/oa_ctf2.bsp         OK
    testing: maps/oa_ctf2old.bsp      OK
    testing: maps/oa_ctf4ish.bsp      OK
    testing: maps/oa_dm1.bsp          OK
    testing: maps/oa_dm2.bsp          OK
    testing: maps/oa_dm3.bsp          OK
    testing: maps/oa_dm4.bsp          OK
    testing: maps/oa_dm5.bsp          OK
    testing: maps/oa_dm6.bsp          OK
    testing: maps/oa_dm7.bsp          OK
    testing: maps/oa_koth1.bsp        OK
    testing: maps/oa_koth2.bsp        OK
    testing: maps/oa_minia.bsp        OK
    testing: maps/oa_pvomit.bsp       OK
    testing: maps/oa_reptctf11.bsp    OK
    testing: maps/oa_rpg3dm2.bsp      OK
    testing: maps/oasago1.bsp         OK
    testing: maps/oasago2.bsp         OK
    testing: maps/oa_shine.bsp        OK
    testing: maps/oa_shouse.bsp       OK
    testing: maps/oa_spirit3.bsp      OK
    testing: maps/oa_thor.bsp         OK
    testing: maps/ps37ctf2.bsp        OK
    testing: maps/ps37ctf.bsp         OK
    testing: maps/ps9ctf.bsp          OK
    testing: maps/pul1ctf.bsp         OK
    testing: maps/pul1duel-oa.bsp     OK
    testing: maps/pxlfan.bsp          OK
    testing: maps/q3dm6ish.bsp        OK
    testing: maps/sleekgrinder.bsp    OK
    testing: maps/slimefac.bsp        OK
    testing: maps/suspended.bsp       OK
    testing: maps/wrackdm17.bsp       OK