dmenu_wifi

This script is meant to provide a simple way to connect to wi-fi networks without the need for something like NetworkManager. Its precise mechanisms for doing this are outlined in the comments at the top of the script. There is a little bit of setup to get it working seamlessly:

• First, compatibility. This script assumes a system that has/uses wpa_supplicant, iw, and dhcpcd. All of these are pretty common packages, but some minimal distributions may not ship with all of them. Additionally, a build of dmenu with the password patch is required.
• To make the calls to wpa_supplicant and iw, the script has to be provided with the name of your computer's wi-fi device. To find this, run ip link to list out all of your network devices. The one you're looking for probably looks something like "wlp2s0" or "wlan0". Once you find it, set it as the value of DEVICE at the top of the script.
• Because the wi-fi commands used in the script have to talk directly to the hardward, many have to be run as root. If there's a clean fix for this using a udev rule or something, I haven't found it. My preferred solution at the moment is to set the whole script to require root privileges, then carve out a password exception for it in /etc/sudoers.

Other notes

• When you tell dmenu_wifi to remember a wi-fi network, it will write a config file for it and store it in /etc/wpa_supplicant/known_networks/.
• dmenu_wifi currently does not have any way of knowing on its own whether a network requires a password, so it will prompt you to tell it whether to collect one or not whenever you connect to a new network.