cris@cris-Compaq-CQ58-Notebook-PC:~$ for n in /sys/class/net/wlan*/*; do [ -f $n ] && echo $n = $(cat $n); done
/sys/class/net/wlan0/addr_assign_type = 0
/sys/class/net/wlan0/address = 70:18:8b:2d:9c:25
/sys/class/net/wlan0/addr_len = 6
/sys/class/net/wlan0/broadcast = ff:ff:ff:ff:ff:ff
cat: /sys/class/net/wlan0/carrier: Invalid argument
/sys/class/net/wlan0/carrier =
/sys/class/net/wlan0/carrier_changes = 1
/sys/class/net/wlan0/dev_id = 0x0
/sys/class/net/wlan0/dev_port = 0
cat: /sys/class/net/wlan0/dormant: Invalid argument
/sys/class/net/wlan0/dormant =
cat: /sys/class/net/wlan0/duplex: Invalid argument
/sys/class/net/wlan0/duplex =
/sys/class/net/wlan0/flags = 0x1002
/sys/class/net/wlan0/gro_flush_timeout = 0
/sys/class/net/wlan0/ifalias =
/sys/class/net/wlan0/ifindex = 5
/sys/class/net/wlan0/iflink = 5
/sys/class/net/wlan0/link_mode = 0
/sys/class/net/wlan0/mtu = 1500
cat: /sys/class/net/wlan0/name_assign_type: Invalid argument
/sys/class/net/wlan0/name_assign_type =
/sys/class/net/wlan0/netdev_group = 0
/sys/class/net/wlan0/operstate = down
cat: /sys/class/net/wlan0/phys_port_id: Operation not supported
/sys/class/net/wlan0/phys_port_id =
cat: /sys/class/net/wlan0/phys_switch_id: Operation not supported
/sys/class/net/wlan0/phys_switch_id =
cat: /sys/class/net/wlan0/speed: Invalid argument
/sys/class/net/wlan0/speed =
/sys/class/net/wlan0/tx_queue_len = 1000
/sys/class/net/wlan0/type = 1
/sys/class/net/wlan0/uevent = DEVTYPE=wlan INTERFACE=wlan0 IFINDEX=5