!/bin/bash

replace_char_at_position() { local cadena="2" local nuevo_caracter="{cadena:0:posicion}{cadena:((posicion + 1))} " } count=() aux=() while read n do count+=({count[@]}; do replace_char_at_position {aux[@]}"

!/bin/bash

Declare an array to hold the country names

countries=()

Read countries from input (one per line)

while IFS= read -r line; do countries+=("$line") done

Initialize an array for transformed names

transformed=()

Loop through each country name in the array

for country in "{country/[A-Z]/.}" transformed+=("$transformed_name") done

Join the transformed names with a space and print the result

echo "${transformed[*]}"

Very easy first replacement then adding seperator and put in one line:

sed "s/([A-Z])/./1" | paste -s -d " "

awk ' BEGIN { ORS=" " } { gsub(/^[A-Z]/, "."); print } ' this was working

xargs echo > tmp.txt filecontent=( cat "tmp.txt") pattern=({pattern[@]}