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@CocaButon

ヒアドキュメント内で変数を展開しない方法

Last updated at Posted at 2023-08-20

以下のEOTを" or ' でくくると展開されない

#!/bin/bash

MSG1="HELLO WORLD.(test1)"
MSG2="HELLO WORLD.(test2)"
MSG3="HELLO WORLD.(test3)"

echo "here document test 1."
cat << EOT # $MSG1展開される
<HTML>
<BODY>
$MSG1
</BODY>
</HTML>
EOT

echo "here document test 2."
cat << 'EOT' # $MSG2展開されない
<html>
<body>
$MSG2
</body>
</html>
EOT

echo "here document test 3."
cat << "EOT" # $MSG3展開されない
<html>
<body>
$MSG3
</body>
</html>
EOT

参考

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