Here-docs bash シェルの長さの制限は何ですか？

bashこのドキュメントをコマンドラインの一部として使用するための長さ制限は何ですか？私は短いhere-docsがうまく動作することがわかりました。しかし、それが長くなると、どんな要点や構造があり壊れてしまいます。これが失敗すると、2つの症状が現れます。 1つはhere-docが非常に早く捨てられたということです。別の問題は、here-docの1つ以上の行が出力で切り捨てられ、必ずしも最後の行ではない可能性があることです。

以下では、問題を再現するために使用された人工的な例のコマンドを見ることができます。ここにある文書は退屈な58行で、各行には79の「x」文字と改行文字が含まれています。 60行すべてをコピーして貼り付けると、いいえEOFから対話型シェルまでの改行文字を含むbash手動で入力する必要があり、Enter毎回コマンド全体が正常に実行されます。ところで、60行をすべてコピーして貼り付けると、含む改行文字を入力するEOFと失敗します。後者をデスクトップの端末アプリケーションで実行すると、いつも失敗する。リモートSSHクライアントでこれを行うと、成功したり失敗したりすることがあります。 here-doc 行数を大幅に減らすと問題がなくなります。ここで文書の一部を捨てるとは、ここに残っているすべての文書行を意味します。そしてこのEOF行は新しい別々のコマンドラインとして扱われ、bash一連の「コマンドが見つかりません」というエラーが発生します（ここに文書に正当なコマンドラインが含まれている場合はさらに悪い可能性があります）。

cat > ~/test.txt << 'EOF'
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EOF

bashコマンドラインの長さに制限があることはわかっていますが、この例はその制限よりはるかに低いです。実際、上記の複数行コマンドの行のどれも80文字を超えず、各行はシェルから独自のプロンプトを取得するため、どの制限が適用されるかはわかりません。ここでは、文書の長さを制限する必要があることが奇妙に見えます。

私はLinux Mint 17（Ubuntu 14.04）を使用しています。

$ bash --version
GNU bash, version 4.3.11(1)-release (x86_64-pc-linux-gnu)
...
$ uname -a
Linux QWERTY 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

Bashスクリプトでこれらのコマンドを使用すると、この問題は発生しません。