I have found something similar on here but not exactly what I am looking for. I am essentially trying to automate the creation of an nginx file which may have multiple domains attached to it.

My input looks like this:

./setup.sh domain1.com domain2.com domain3.com domain4.com domain5.com

What I am trying to do:

1. add www before each of the input domain names (on the same line)
2. Output all of it to a file. Currently this breaks.

   SERVER_HOSTNAME=${1}
   shift
   SERVER_DOMAINS=(${@})

   echo '
   server {
           listen 80;
           listen [::]:80;

           root /var/www/${1}/html;
           index index.html index.php index.htm index.nginx-debian.html;

           server_name ${@} '
           for i in "${@}"; do echo "www.${i}"; done
           echo '
           more lines here.
           more
           more
           more

   ' > output.text

Currently this loop kind of works except it puts the www.$@ on separate lines and only outputs the 2nd part of the echo statement to the file.

Any ideas?

CodePudding user response：

You could use a heredoc and a bash parameter expansion:

#!/bin/bash

(( $# > 0 )) || exit 1

cat <<EOF
server {
    listen 80;
    listen [::]:80;

    root /var/www/$1/html;
    index index.html index.php index.htm index.nginx-debian.html;

    server_name ${@/#/www.};

    more lines here.
    more
    more
    more
}
EOF

So that:

./setup.sh domain1.com domain2.com domain3.com domain4.com domain5.com

Would output:

server {
    listen 80;
    listen [::]:80;

    root /var/www/domain1.com/html;
    index index.html index.php index.htm index.nginx-debian.html;

    server_name www.domain1.com www.domain2.com www.domain3.com www.domain4.com www.domain5.com;

    more lines here.
    more
    more
    more
}