iwlist
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iwlist is a Linux command that is used to display some additional information from a wireless network interface that is not displayed by iwconfig. The main argument is used to select a category of information, iwlist displays in detailed form all information related to this category, including information already shown by iwconfig.
The command is primarily used to generate a list of nearby wireless access points and their MAC addresses and SSIDs.
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[edit] Sample iwlist output
The following screen dialog shows the result of scanning for nearby wireless access points.
$ iwlist eth1 scan
eth1 Scan completed :
Cell 01 - Address: 00:12:17:46:E6:AF
ESSID:"lookmanohands"
Protocol:IEEE 802.11bg
Mode:Master
Channel:1
Encryption key:off
Bit Rate:1 Mb/s
Bit Rate:2 Mb/s
Bit Rate:5.5 Mb/s
Bit Rate:6 Mb/s
Bit Rate:9 Mb/s
Bit Rate:11 Mb/s
Bit Rate:12 Mb/s
Bit Rate:18 Mb/s
Bit Rate:24 Mb/s
Bit Rate:36 Mb/s
Bit Rate:48 Mb/s
Bit Rate:54 Mb/s
Quality=82/100 Signal level=-48 dBm
Extra: Last beacon: 36ms ago
This scan yields only one nearby wireless access point. Helpful information in this scan includes ESSID, the type of network, and signal quality.
[edit] Current status
Iwlist and related tools are maintained by Jean Tourrilhes as part of the Wireless tools for Linux package. The package is a fundamental set of utilities for configuring wireless devices and is included with most Linux distributions.
