String Return to Array

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I’m making a shellscript and have the return command:

$ sqlite3 banco.db 'select code from channels'

00 01 02 03

When I assign the return to a variable, everything becomes a single string.

$ export LISTA=$(sqlite3 banco.db 'select code from channels')
$ echo $LISTA

00 01 02 03

I would like each number to be the element of an array, as I can transform so that I can access as something like:

$ echo $LISTA[0]

00

$ echo $LISTA[1]

01

linux shell-script

  • tries this way values=($(sqlite3 bank.db "select code from Channels")) cnt=${#values[@]} echo "number of variables in the array: $cnt"

1 answer

0

After placing the contents of the command inside the variable, vc must declare an array:

LISTA=$(sqlite3 banco.db 'select code from Channels')

echo $LIST

00 01 02 03

Now vc must declare an array with the contents of the variable, with a delimiter:

IFS=' ' ' read -r -a array <<< $LIST

echo ${array[0]}

00

echo ${array[1]}

01

echo ${array[2]}

02

echo ${array[3]}

03

Those echo are just examples, you don’t need to run them unless you want to see the content of each position in the array. Ready, declared and started array.

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