If you are new to Radare2 (that includes me), you will execute the e command at an r2 prompt, and be overwhelmed by 492 possible settings.
The manual helpfully says that you can use e (namespace). to see all the setting within a namespace.
e cfg.
returns:
cfg.bigendian = false
cfg.debug = false
cfg.editor = emacs
cfg.fortunes = true
cfg.fortunes.clippy = false
cfg.fortunes.tts = false
cfg.fortunes.type = tips,fun
cfg.hashlimit = 0x00a00000
cfg.log = false
cfg.newtab = false
cfg.plugins = true
cfg.prefixdump = dump
cfg.r2wars = false
cfg.sandbox = false
cfg.user = pid386
cfg.wseek = false
But if you don’t know the namespaces, that’s not very helpful advice.
The namespaces as of 16 September 2018 are:
analasmbincfgcmddbgdiffdiremuesilfilefsgraphhexhttphudiokeylinesmagicpdbprjrapropscrsearchstackstrtcptimezignzoom
The use of namespaces with e produces more manageable setting listings. Ping me if you find this useful.