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#!/bin/bash
IFS='' # Nothing to do with IFS
true < "${BASH_SOURCE[0]}"
true <<< fdsaafgaag
echo outside
cat <<- EOF
inside
EOF
echo outside
cat << 'Shit, it'\''s a string'
inside
Shit, it's a string
echo outside
cat << "She said \"a\\b\'c\nd\:e\
f\""
inside
She said "a\b\'c\nd\:ef"
echo outside
cat << 'She said '\"a\\b\'c\nd\:e\
f\"
inside
She said "a\b'cnd:ef"
echo outside
cat << $IFS
inside
$IFS
echo outside
cat << "$IFS"
inside
$IFS
echo outside
cat << "$(eject && printf EOF)"
inside
$(eject && printf EOF)
echo outside