After downloading default user accessKeys.csv file from AWS console you can setup default profile with following bash function

aws.setup-credencials

aws.setup-credencials () 
{ 
    FILE=$HOME/accessKeys.csv;
    if test -f "$FILE"; then
        echo "Reading from $FILE";
        aws configure set aws_access_key_id $(tail -n1 $HOME/accessKeys.csv | cut -d, -f1);
        aws configure set aws_secret_access_key $(tail -n1 $HOME/accessKeys.csv | cut -d, -f2);
    else
        echo "Missing $FILE";
    fi
}