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tech-otaku/here-document.md

Created January 9, 2022 08:21
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Expanding variables in a *nix shell 'here document' (heredoc).
Raw
here-document.md
Command:
cat << EOF
$USER 
$HOME
EOF
Output:
steve 
/Users/steve
Command:
cat << 'EOF'
$USER 
$HOME
EOF
Output:
$USER 
$HOME
Command:
cat << \EOF
$USER 
$HOME
EOF
Output:
$USER 
$HOME
Command:
cat << EOF
\$USER 
$HOME
EOF
Output:
$USER 
/Users/steve
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