How to replace same word from config file to different words from array - bash

Question

Hi there.
I am very new to Shell Script so need your help...
I have config file with below info
config name AAAAA
root root
port number 00000
Hostname hahahahah
config name AAAAA
root less
port number 00001
Hostname nonononono
config name AAAAA
root less
port number 00002
Hostname nonononono
And inside my bash file, there's arraylist with below info
${array1[0]} # Has value of value11111
${array2[1]} # Has value of value22222
${array2[1]} # Has value of value33333
I want to change config file and save as below
config name value11111
root root
port number 00000
Hostname hahahahah
config name value22222
root less
port number 00001
Hostname nonononono
config name value33333
root less
port number 00002
Hostname nonononono
I tried awk and sed but no luck..... Could you please help this?

Answer 1

Check out some of these answers.
I second the advice by Ed and David (and in hindsight, this whole post could have been a comment instead of an answer), that awk/sed might not be the best tool for this job, and you'd want to take a step back and re-think the process. There's a whole bunch of things that could go wrong; the array values might not be populated correctly, there's no check that enough values for all substitutions exist, and in the end, you can't roll changes back.
Nevertheless, here's a starting point, just to illustrate some sed. It certainly is not the most performant one, and only works for GNU sed, but provides the output you required
#!/bin/bash
declare -a array
array=(value11111 value22222 value33333)
for a in "${array[#]}"; do
# Use sed inline, perform substitutions directly on the file
# Starting from the first line, search for the first match of `config name AAAAA`
# and then execute the substitution in curly brackets
sed -i "0,/config name AAAAA/{s/config name AAAAA/config name $a/}" yourinputconfigfile
done
# yourinputconfigfile
config name value11111
root root
port number 00000
Hostname hahahahah
config name value22222
root less
port number 00001
Hostname nonononono
config name value33333
root less
port number 00002
Hostname nonononono