カッフェーでWiFiが突然繋がらなくなったときに打つコマンド ref: https://qiita.com/ikuwow/items/fd67c2cff0d6ec976bdb

file0.txt

# ssidを取得するコマンド
alias ssid=$'/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | awk \'/ SSID/ {print substr($0, index($0, $2))}\''

wifireset ()
{
    ssid=$(ssid)
    networksetup -setairportpower en0 off
    echo 'Re-enabling Wi-Fi...'
    networksetup -setairportpower en0 on
    echo "Reconnecting ${ssid}..."
    networksetup -setairportnetwork en0 "$ssid"
    echo 'Done.'
}

file1.txt

/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport --help

file2.txt

networksetup -help

file3.txt

$ wifireset
Re-enabling Wi-Fi...
Reconnecting tullys_Wi-Fi...
Done.