Reading lines in a file and avoiding lines with # with Bash

Question

I tried this:

file=\"myfile\"
while read -r line
do
    [[ $line = \\#* ]] && continue
    \"address=\\$line\\127.0.0.1\"
done < \"$file\"
         


        

Answer 1

[ "${line:0:1}" = "#" ] && continue

This takes the string, gets the substring at offset 0, length 1:

"${line:0:1}"

and checks if it is equal to #

= "#"

and continues looping if so

&& continue

http://www.tldp.org/LDP/abs/html/string-manipulation.html