Bdtyktl

I found a strange thing and will be nice if somebody can help to fix it.

#!/bin/bash

#



dockerdir="docker"





step_1=("nginx" "create" "default.conf")

step_2=("nginx" "use" "default.conf" "replace" "server               tplphp:9000" "server      bbaphp1:9000;")

#step_3=("nginx" "use" "default.conf" "add" " server  bbaphp1:9000" " server  bbaphp2:9000")

#step_4=("nginx" "use" "default.conf" "add" "server  bbaphp2:9000" "server  bbaphp3:9000")

#step_5=("nginx" "use" "default.conf" "delete" " server  bbaphp3:9000")

#step_6=("php" "value0")

#step_7=("php" "value1")





declare -a buildfolders=(

  step_1[@]

  step_2[@]

)



#



echo "Start:"

     arrayleght=${#buildfolders[@]}

     for (( i=1; i<${arrayleght}+1; i++ ));

     do

       folder=${!buildfolders[$i-1]:0:1}

       file_task=${!buildfolders[$i-1]:1:1}

       file=${!buildfolders[$i-1]:2:1}

       task=${!buildfolders[$i-1]:3:1}

       variable_name=${!buildfolders[$i-1]:4:1}

       variable_value=${!buildfolders[$i-1]:5:1}

       echo "Folder ${folder} "

       #" leght "${#folder}

       echo "Task ${file_task}"

       # " leght "${#file_task}

       echo "File ${file}"

       # " leght "${#file}

       echo "Task for file ${task}"

       # " leght "${#task}

       echo "Variable name ${variable_name}"

       # " leght "${#variable_name}

       echo "Variable value ${variable_value}"

       # " leght "${#variable_value}

       echo " "

#  filemanipulations ./${dockerdir}/${folder}/ ${file_task} ${file} ${task} "${variable_name}" "${variable_value}"

     done



echo "Done."

The result is:

Start:

Folder nginx 

Task create

File default.conf

Task for file 

Variable name 

Variable value 



Folder nginx 

Task use

File default.conf

Task for file replace

Variable name server tplphp:9000

Variable value server bbaphp1:9000;



Done.

Question: Where are spaces? Compare the result with the input:

step_2=("nginx" "use" "default.conf" "replace" "server               tplphp:9000" "server      bbaphp1:9000;")

Only one space left.

The problem is that the Bash shell's field splitting feature is removing the multiple spaces. You can prevent this by quoting all of your variable/array expansions. When you're building your compound array:

declare -a buildfolders=(

  "${step_1[@]}"

  "${step_2[@]}"

)

Also when you're putting parts of that array into variables:

echo "Start:"

     arrayleght=${#buildfolders[@]}

     for (( i=1; i<${arrayleght}+1; i++ ));

     do

       folder="${!buildfolders[$i-1]:0:1}"

       file_task="${!buildfolders[$i-1]:1:1}"

       file="${!buildfolders[$i-1]:2:1}"

       task="${!buildfolders[$i-1]:3:1}"

       variable_name="${!buildfolders[$i-1]:4:1}"

       variable_value="${!buildfolders[$i-1]:5:1}"

This will keep all of the multiple spaces in place.