今天给大家介绍的是一款名叫mac-wifi的命令行工具，它可以管理macOS系统的无线网络，并且还提供了交互式Shell。

mac-wifi

mac-wifi脚本可以查询或管理macOS平台上的WiFi配置以及网络环境信息，脚本代码在最小化的类中实现了针对macOS环境的设计逻辑，并且允许开发者轻松地添加针对其他操作系统的支持，但是目前该工具仅支持macOS操作系统。

该工具可以在单一命令行或交互式模式下运行，交互式模式使用了pry gem，并可提供类似Rubyists或其他REPL用户的交互式接口。

在使用这款工具时，你甚至都不需要下载整个代码库，或者进行任何的安装，你只需要运行bin/mac-wifi脚本文件就可以了。

下载地址

依赖组件

目前，本项目只需要使用下列两个gem：pry：提供交互式Shell

awesome_print(可选)：在非交互模式下提供更优化的输出结果

工具使用

你可以使用“h”或“help”参数来查看所有可使用的命令：➜  mac-wifi git:(master) ✗  ./mac-wifi h

mac-wifi version 1.1.0 -- Availablecommands are:

ci                      - connected to Internet(not just wifi on)?

co[nnect] network-name  - turns wifi on, connects to network-name

cy[cle]                 - turns wifi off, then on,preserving network selection

d[isconnect]            - disconnects from current network,does not turn off wifi

h[elp]                  - prints this help

i[nfo]                  - prints wifi-relatedinformation

lsp[referred]           - lists preferred (not necessarilyavailable) networks

lsa[vailable]           - lists available networks

n[etwork_name]          - name (SSID) of currently connectednetwork

on                      - turns wifi on

of[f]                   - turns wifi off

pa[ssword] network-name - shows passwordfor preferred network-name

q[uit]                  - exits this program(interactive shell mode only)

r[m] network-name       - removes network-name from thepreferred networks list

s[hell]                 - opens an interactive pryshell (command line only)

t[ill]                  - returns when the desiredInternet connection state is true. Options:

'on'/:on or 'off'/:off

wait interval, inseconds (optional, defaults to 0.5 seconds)

w[ifion]                - is the wifi on?

x[it]                   - exits this program(interactive shell mode only)

When in interactive shell mode:

*use quotes for string parameters such as method names.

*for pry commands, use prefix `%`.

该工具是基于Mac命令行工具实现的，但这并不是最佳的解决方案。本来我更愿意去使用macOS的系统调用，但现在的这种方法可以提高我开发脚本的速度。

更好的输出结果

如果你想在非交互模式下获取更形式化的输出结果(使用info命令)，你需要安装awesome_print gem，否则你只能使用“pp”命令了(效果不够好)。因此我建议大家安装awesome_print，安装命令如下：gem install awesome_print

查看底层操作系统命令和输出

如果你想查看macOS命令以及相应的输出，你可以设置环境变量MAC_WIFI_OPTS为-v(使用info命令进行演示)：export MAC_WIFI_OPTS=-v

./mac-wifi i

或者MAC_WIFI_OPTS=-v  ./mac-wifi i

使用交互式Shell

如果当你尝试运行shell时程序崩溃的话，你可以尝试更新pry或pry-byebug。操作命令如下：gem install pry

gem install pry-byebug

使用样例

单一命令行调用mac-wifi i            # 打印输出WiFi信息

mac-wifi lsa          # 输出可用网络

mac-wifi lsp          # 输出优先选择的网络

mac-wifi co a-network a-password # 与一个需要密码的网络进行连接

mac-wifi co a-network            #与一个不需要密码的网络进行连接

mac-wifi t on && say "Internetconnected" # 当与一个网络连接成功之后播放消息

交互式Shell命令# Print out wifi info:

i

# Cycle (off/on) the network then connectto the specified network not requiring a password

> cycle; connect 'my-network'

# Cycle (off/on) the network, then connectto the same network not requiring a password

> @name = network_name; cycle; connect@name

# Cycle (off/on) the network then connectto the specified network using the specified password

> cycle; connect 'my-network','my-password'

> @i = i; puts "You are connectedon port #{@i[:port]} to #{@i[:network]} on IP address #{@i[:ip_address]}."

You are connected on port en0 to .@ AISSUPER WiFi on IP address 172.27.145.225.

> puts "There are #{lsp.size}preferred networks."

There are 341 preferred networks.

# Delete all preferred networks whose namesbegin with "TOTTGUEST", the hard way:

> lsp.grep(/^TOTTGUEST/).each { |n|rm(n) }

# Delete all preferred networks whose namesbegin with "TOTTGUEST", the easy way.

# rm can take multiple network names, butthey must be specified as separate parameters; thus the '*'.

> rm(*lsp.grep(/^TOTTGUEST/))

# Define a method to wait for the Internetconnection to be active.

# (This functionality is included in the`till` command.)

# Call it, then output celebration message:

[17] pry(#)> defwait_for_internet; loop do; break if ci; sleep 0.5; end; end

[18] pry(#)>wait_for_internet; puts "Connected!"

Connected!

# Same, but using a lambda instead of amethod so we can use a variable name

# and not need to worry about method namecollision:

@wait_for_internet = -> { loop do; breakif ci; sleep 0.5; end }

@wait_for_internet.() ; puts"Connected!"

Connected!

许可证协议

本开源项目遵循 MIT 许可证

* 参考来源：macwifi，FB小编Alpha_h4ck编译，转载请注明来自 FreeBuf.COM