Bash Script Leet Text Convertor: How to get array to recognize spaces -


the issue code below can not seem array recognize when text has spaces in or not. figured adding ' ' value in array handle this, wrong. haven't found luck searches how array recognize spaces in bash scripting.

#!/bin/bash if [ "$1" == "-e" ]; # if cli argument -e     opt="encrypt"; # set option encrypt elif [ "$1" == "-d" ]; # if cli argument -d     opt="decrypt"; # set option decrypt else # else show proper usage     echo "usage - encrypt text: ./l33t.sh -e text";     echo "usage - decrypt text: ./l33t.sh -d text";     exit; fi #creating array leet text , plain text declare -a leet=('ɐ' 'ß' '©' 'Ð' '€' 'ƒ' '&' '#' 'i' '¿' 'x' '£' 'm' '?' 'ø' 'p' 'o' 'Я' '§' '†' 'µ' '^' 'w' '×' '¥' 'z' '1' '2' '3' '4' '5' '6' '7' '8' '9' '0' ' '); declare -a eng=('a' 'b' 'c' 'd' 'e' 'f' 'g' 'h' 'i' 'j' 'k' 'l' 'm' 'n' 'o' 'p' 'q' 'r' 's' 't' 'u' 'v' 'w' 'x' 'y' 'z' '1' '2' '3' '4' '5' '6' '7' '8' '9' '0' ' '); echo -n "please enter string $opt: "; # asking user input read input; # grab input while read letter; # each character in input (check grep near done)     in {0..37} # each item in array                 if [ "$opt" == "encrypt" ]; # if option set encrypt                     find=${eng[$i]}; # array through plain array             elif [ "$opt" == "decrypt" ]; # else array through leet text array                     find=${leet[$i]};             fi              if [ "$opt" == "encrypt" ]; # if option set encrypt                     if [ "$find" == "$letter" ]; # if our character in plain array                             encrypted+=${leet[$i]}; # add encrypted values leet transformation                     fi             elif [ "$opt" == "decrypt" ]; # else same thing except oposite arrays                     if [ "$find" == "$letter" ];                             encrypted+=${eng[$i]};                     fi             fi     done done < <(grep -o . <<< $input) echo $encrypted; # echo result

change

while read letter

to

while ifs= read -r letter

otherwise, read command ignores leading , trailing whitespace. that's kind of crucial when you're trying read space.


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