I need to make a shell script that displays config files without the commented and empty lines

Question

This is my code:
#!/bin/bash
echo "Type in your file"
read file
sed -r -e 's/(^[^#]*$) ; s/(^[^;]*$) ; s/(^[^$]*$) ; s/(^[^/]*$) ; s/(^[^ ]*$)' $file

This is the output when I give it a file:

sed: -e expression #1, char 31: unknown option to `s'

Why am I getting this error? Would you suggest another way to do it?
Thanks in advance

bac0n · Answer

Should remove most comments and empty lines:
pcre2grep -v '^[[:blank:]]*([#;]|//|$)' file

waltinator · Answer

This might help more:
grep -Ev '^s+$|^#' file.txt

2 Answers