ネットワークの設定をコマンドからやりたかったので．．．
OSXではnetworksetupコマンドで可能そうです．
uraura@rosemary$ networksetup -listallnetworkservices
An asterisk (*) denotes that a network service is disabled.
Thunderbolt Ethernet
Wi-Fi
iPhone USB
Bluetooth PAN
Thunderbolt Bridge
uraura@rosemary$ networksetup -getsocksfirewallproxy Wi-Fi
Enabled: No
Server:
Port: 0
Authenticated Proxy Enabled: 0
uraura@rosemary$ sudo networksetup -setsocksfirewallproxy Wi-Fi localhost 1080
Password:
# 設定するとデフォでONになります
uraura@rosemary$ networksetup -getsocksfirewallproxy Wi-Fi
Enabled: Yes
Server: localhost
Port: 1080
Authenticated Proxy Enabled: 0
# OFFにしたいだけなら
uraura@rosemary$ sudo networksetup -setsocksfirewallproxystate Wi-Fi off
uraura@rosemary$ networksetup -getsocksfirewallproxy Wi-Fi
Enabled: No
Server: localhost
Port: 1080
Authenticated Proxy Enabled: 0
ちなみに上記はGUIだとこのあたり
オプションめっちゃある．．．たぶんこれらの項目がすべて設定できるようになってるんだろうけど確かめる気力はない．．．
uraura@rosemary$ networksetup -printcommands
networksetup -listnetworkserviceorder
networksetup -listallnetworkservices
networksetup -listallhardwareports
networksetup -detectnewhardware
networksetup -getmacaddress <hardwareport or device name>
networksetup -getcomputername
networksetup -setcomputername <name>
networksetup -getinfo <networkservice>
networksetup -setmanual <networkservice> <ip> <subnet> <router>
networksetup -setdhcp <networkservice> [clientid]
networksetup -setbootp <networkservice>
networksetup -setmanualwithdhcprouter <networkservice> <ip>
networksetup -getadditionalroutes <networkservice>
networksetup -setadditionalroutes <networkservice> [ <dest> <mask> <gateway> ]*
networksetup -setv4off <networkservice>
networksetup -setv6off <networkservice>
networksetup -setv6automatic <networkservice>
networksetup -setv6LinkLocal <networkservice>
networksetup -setv6manual <networkservice> <networkservice> <address> <prefixlength> <router>
networksetup -getv6additionalroutes <networkservice>
networksetup -setv6additionalroutes <networkservice> [ <dest> <prefixlength> <gateway> ]*
networksetup -getdnsservers <networkservice>
networksetup -setdnsservers <networkservice> <dns1> [dns2] [...]
networksetup -getsearchdomains <networkservice>
networksetup -setsearchdomains <networkservice> <domain1> [domain2] [...]
networksetup -create6to4service <newnetworkservicename>
networksetup -set6to4automatic <networkservice>
networksetup -set6to4manual <networkservice> <relayaddress>
networksetup -getftpproxy <networkservice>
networksetup -setftpproxy <networkservice> <domain> <port number> <authenticated> <username> <password>
networksetup -setftpproxystate <networkservice> <on off>
networksetup -getwebproxy <networkservice>
networksetup -setwebproxy <networkservice> <domain> <port number> <authenticated> <username> <password>
networksetup -setwebproxystate <networkservice> <on off>
networksetup -getsecurewebproxy <networkservice>
networksetup -setsecurewebproxy <networkservice> <domain> <port number> <authenticated> <username> <password>
networksetup -setsecurewebproxystate <networkservice> <on off>
networksetup -getstreamingproxy <networkservice>
networksetup -setstreamingproxy <networkservice> <domain> <port number> <authenticated> <username> <password>
networksetup -setstreamingproxystate <networkservice> <on off>
networksetup -getgopherproxy <networkservice>
networksetup -setgopherproxy <networkservice> <domain> <port number> <authenticated> <username> <password>
networksetup -setgopherproxystate <networkservice> <on off>
networksetup -getsocksfirewallproxy <networkservice>
networksetup -setsocksfirewallproxy <networkservice> <domain> <port number> <authenticated> <username> <password>
networksetup -setsocksfirewallproxystate <networkservice> <on off>
networksetup -getproxybypassdomains <networkservice>
networksetup -setproxybypassdomains <networkservice> <domain1> [domain2] [...]
networksetup -getproxyautodiscovery <networkservice>
networksetup -setproxyautodiscovery <networkservice> <on off>
networksetup -getpassiveftp <networkservice>
networksetup -setpassiveftp <networkservice> <on off>
networksetup -getairportnetwork <device name>
networksetup -setairportnetwork <device name> <network> [password]
networksetup -getairportpower <device name>
networksetup -setairportpower <device name> <on off>
networksetup -listpreferredwirelessnetworks <device name>
networksetup -addpreferredwirelessnetworkatindex <device name> <network> <index> <security type> [password]
networksetup -removepreferredwirelessnetwork <device name> <network>
networksetup -removeallpreferredwirelessnetworks <device name>
networksetup -getnetworkserviceenabled <networkservice>
networksetup -setnetworkserviceenabled <networkservice> <on off>
networksetup -createnetworkservice <newnetworkservicename> <hardwareport>
networksetup -renamenetworkservice <networkservice> <newnetworkservicename>
networksetup -duplicatenetworkservice <networkservice> <newnetworkservicename>
networksetup -removenetworkservice <networkservice>
networksetup -ordernetworkservices <service1> <service2> <service3> <...>
networksetup -getMTU <hardwareport or device name>
networksetup -setMTU <hardwareport or device name> <value>
networksetup -listvalidMTUrange <hardwareport or device name>
networksetup -getmedia <hardwareport or device name>
networksetup -setmedia <hardwareport or device name> <subtype> [option1] [option2] [...]
networksetup -listvalidmedia <hardwareport or device name>
networksetup -createVLAN <VLAN name> <parent device name> <tag>
networksetup -deleteVLAN <VLAN name> <parent device name> <tag>
networksetup -listVLANs
networksetup -listdevicesthatsupportVLAN
networksetup -isBondSupported <hardwareport>
networksetup -createBond <bondname> <hardwareport1> <hardwareport2> <...>
networksetup -deleteBond <bonddevicename>
networksetup -addDeviceToBond <hardwareport> <bonddevicename>
networksetup -removeDeviceFromBond <hardwareport> <bonddevicename>
networksetup -listBonds
networksetup -showBondStatus <bonddevicename>
networksetup -listpppoeservices
networksetup -showpppoestatus <service name ie., MyPPPoEService>
networksetup -createpppoeservice <device name ie., en0> <service name> <account name> <password> [pppoe service name]
networksetup -deletepppoeservice <service name>
networksetup -setpppoeaccountname <service name> <account name>
networksetup -setpppoepassword <service name> <password>
networksetup -connectpppoeservice <service name>
networksetup -disconnectpppoeservice <service name>
networksetup -getcurrentlocation
networksetup -listlocations
networksetup -createlocation <location name> [populate]
networksetup -deletelocation <location name>
networksetup -switchtolocation <location name>
networksetup -listalluserprofiles
networksetup -listloginprofiles <service name>
networksetup -enablesystemprofile <service name> <on off>
networksetup -enableloginprofile <service name> <profile name> <on off>
networksetup -enableuserprofile <profile name> <on off>
networksetup -import8021xProfiles <service name> <file path>
networksetup -export8021xProfiles <service name> <file path> <yes no>
networksetup -export8021xUserProfiles <file path> <yes no>
networksetup -export8021xLoginProfiles <service name> <file path> <yes no>
networksetup -export8021xSystemProfile <service name> <file path> <yes no>
networksetup -settlsidentityonsystemprofile <service name> <file path> <passphrase>
>networksetup -settlsidentityonuserprofile <profile name> <file path> <passphrase>networksetup -deletesystemprofile <service name>
networksetup -deleteloginprofile <service name> <profile name>
networksetup -deleteuserprofile <profile name>
networksetup -version
networksetup -help
networksetup -printcommands