NEologd のインストール時に認証プロキシでハマった

以下の記事を読みながら、MeCab のシステム辞書 "NEologd" をインストールする際にハマった話。

https://qiita.com/bokotomo/items/3e9d78a4bc94c0314346#neologd%E3%81%AE%E3%83%80%E3%82%A6%E3%83%B3%E3%83%AD%E3%83%BC%E3%83%89

環境は以下。

* CentOS
* 


以下の手順で引っかかる。

https://github.com/neologd/mecab-ipadic-neologd/blob/master/README.ja.md#step2

```
[root@mela-mchc200012 mecab-ipadic-neologd]# ./bin/install-mecab-ipadic-neologd -n
[install-mecab-ipadic-NEologd] : Start..
[install-mecab-ipadic-NEologd] : Check the existance of libraries
[install-mecab-ipadic-NEologd] :     find => ok
[install-mecab-ipadic-NEologd] :     sort => ok
[install-mecab-ipadic-NEologd] :     head => ok
[install-mecab-ipadic-NEologd] :     cut => ok
[install-mecab-ipadic-NEologd] :     egrep => ok
[install-mecab-ipadic-NEologd] :     mecab => ok
[install-mecab-ipadic-NEologd] :     mecab-config => ok
[install-mecab-ipadic-NEologd] :     make => ok
[install-mecab-ipadic-NEologd] :     curl => ok
[install-mecab-ipadic-NEologd] :     sed => ok
[install-mecab-ipadic-NEologd] :     cat => ok
[install-mecab-ipadic-NEologd] :     diff => ok
[install-mecab-ipadic-NEologd] :     tar => ok
[install-mecab-ipadic-NEologd] :     unxz => ok
[install-mecab-ipadic-NEologd] :     xargs => ok
[install-mecab-ipadic-NEologd] :     grep => ok
[install-mecab-ipadic-NEologd] :     iconv => ok
[install-mecab-ipadic-NEologd] :     patch => ok
[install-mecab-ipadic-NEologd] :     which => ok
[install-mecab-ipadic-NEologd] :     file => ok
[install-mecab-ipadic-NEologd] :     openssl => ok
[install-mecab-ipadic-NEologd] :     awk => ok

# 本当はこの下も続くが、何もエラーメッセージが出ずに終わる。
```

## 原因

どうも途中でWebアクセスしている様で、社内のプロキシを通さなければいけなかったみたい。
（プロキシうっとおしい・・・）

以下を参考にプロキシ通したら、上記の途中で終わっているコマンド以降も実行され、正常にインストールされた。

https://qiita.com/hirohiro77/items/cdf6d8baa619c0e0e82d

```
[root@mela-mchc200012 mecab-ipadic-neologd]# ./bin/install-mecab-ipadic-neologd -n
[install-mecab-ipadic-NEologd] : Start..
[install-mecab-ipadic-NEologd] : Check the existance of libraries
[install-mecab-ipadic-NEologd] :     find => ok
[install-mecab-ipadic-NEologd] :     sort => ok
[install-mecab-ipadic-NEologd] :     head => ok
[install-mecab-ipadic-NEologd] :     cut => ok
[install-mecab-ipadic-NEologd] :     egrep => ok
[install-mecab-ipadic-NEologd] :     mecab => ok
[install-mecab-ipadic-NEologd] :     mecab-config => ok
[install-mecab-ipadic-NEologd] :     make => ok
[install-mecab-ipadic-NEologd] :     curl => ok
[install-mecab-ipadic-NEologd] :     sed => ok
[install-mecab-ipadic-NEologd] :     cat => ok
[install-mecab-ipadic-NEologd] :     diff => ok
[install-mecab-ipadic-NEologd] :     tar => ok
[install-mecab-ipadic-NEologd] :     unxz => ok
[install-mecab-ipadic-NEologd] :     xargs => ok
[install-mecab-ipadic-NEologd] :     grep => ok
[install-mecab-ipadic-NEologd] :     iconv => ok
[install-mecab-ipadic-NEologd] :     patch => ok
[install-mecab-ipadic-NEologd] :     which => ok
[install-mecab-ipadic-NEologd] :     file => ok
[install-mecab-ipadic-NEologd] :     openssl => ok
[install-mecab-ipadic-NEologd] :     awk => ok

[install-mecab-ipadic-NEologd] : mecab-ipadic-NEologd is already up-to-date

[install-mecab-ipadic-NEologd] : mecab-ipadic-NEologd will be install to /usr/local/lib/mecab/dic/mecab-ipadic-neologd

[install-mecab-ipadic-NEologd] : Make mecab-ipadic-NEologd
[make-mecab-ipadic-NEologd] : Start..
[make-mecab-ipadic-NEologd] : Check local seed directory
[make-mecab-ipadic-NEologd] : Check local seed file
[make-mecab-ipadic-NEologd] : Check local build directory

# 以下も続いてインストール完了
```