Bash wrapper for @eifgr

wrapper.sh

#!/usr/bin/env bash

# Help for @eifgr at Sunday September 2021.09.12.
# Usage: echo 'abc def ghi' | xargs -0 ./wrapper.sh > output.txt
# cat input.txt | xargs -0 ./wrapper.sh > output.txt

# Do not forget to set execution right for the script.
# chmod u+x wrapper.sh

HEADER='{{#inline "content" }}'
FOOTER_1='{{/inline}}'
FOOTER_2='{{>partials/basis}}'
NEWLINE='\n'

# https://stackoverflow.com/questions/20536112/how-to-insert-a-new-line-in-linux-shell-script/20538015
# https://stackoverflow.com/questions/54218833/pass-multiline-argument-with-xargs
echo -e "$HEADER${NEWLINE}$1${NEWLINE}$FOOTER_1${NEWLINE}$FOOTER_2"

wrapper_stdin.sh

#!/usr/bin/env bash
# !!!!!!! This code has problems !!!!!!!

# Help for @eifgr at Sunday September 2021.09.12.
# Usage: echo 'abc def ghi' | ./wrapper_stdin.sh > output.txt
# cat input.txt | ./wrapper_stdin.sh > output.txt

# Do not forget to set execution right for the script.
# chmod u+x wrapper.sh

HEADER='{{#inline "content" }}'
FOOTER_1='{{/inline}}'
FOOTER_2='{{>partials/basis}}'
NEWLINE='\n'

echo -e "$HEADER"
# https://stackoverflow.com/a/33234042/8574922
full=""
while read line
do
    full="$full$line\n"
done
printf $full
echo -e "$FOOTER_1${NEWLINE}$FOOTER_2"

wrapper_stdin_cat.sh

#!/usr/bin/env bash

# Help for @eifgr at Sunday September 2021.09.12.
# Usage: echo 'abc def ghi' | ./wrapper_stdin.sh > output.txt
# cat input.txt | ./wrapper_stdin.sh > output.txt

# Do not forget to set execution right for the script.
# chmod u+x wrapper.sh

# Code by @Fearan.                       
cat <<EOF              
{{#inline "content" }} 
$(cat)                 
{{/inline}}            
{{>partials/basis}}    
EOF

wrapper_stdin_correct.sh

#!/usr/bin/env bash

# Help for @eifgr at Sunday September 2021.09.12.
# Usage: echo 'abc def ghi' | ./wrapper_stdin.sh > output.txt
# cat input.txt | ./wrapper_stdin.sh > output.txt

# Do not forget to set execution right for the script.
# chmod u+x wrapper.sh

HEADER='{{#inline "content" }}'
FOOTER_1='{{/inline}}'
FOOTER_2='{{>partials/basis}}'
NEWLINE='\n'

echo -e "$HEADER"
# https://stackoverflow.com/a/33234042/8574922
full=""
while read line
do
	echo $line
done
echo -e "$FOOTER_1${NEWLINE}$FOOTER_2"