convertir o parsear float a int en bash script falla de varias maneras

Tenemos:

MINUTES_UNTIL_ASK_TO_CLOSE="0,2"
number_of_iterations=$((MINUTES_UNTIL_ASK_TO_CLOSE * 60 / 5))

Hay un par de comportamientos extraños al hacer eso.

En primer lugar, el resultado debería ser:

número_de_iteraciones = 0,2 * 60 / 5 = 2,4

Sin embargo, la salida de: echo "number_of_iterations" $((MINUTES_UNTIL_ASK_TO_CLOSE * 60 / 5)) es:

24

En segundo lugar, quiero usarlo en el bucle for ((a=1; a<=$number_of_iterations; a++)); do debe ser un número entero. Así que en realidad la salida final deseada es:

2

¿Cómo hacer este redondeo de variables de float a int en applescript correctamente?

He probado lo siguiente, pero se bloquea el script:

echo "number_of_iterations" $((round(MINUTES_UNTIL_ASK_TO_CLOSE * 60 / 5))

Después de los comentarios pidiendo que lo aclare y lo muestre entero, me alegra compartir el script completo. Funciona (siéntete libre de usarlo por ti mismo) si pones DEFAULT_MINUTES_1 con un int como DEFAULT_MINUTES_1="1" . Falla si pongo un flotador como: DEFAULT_MINUTES_1="0,2" . Tampoco funciona si lo hago: DEFAULT_MINUTES_1="0.2"

#!/bin/bash

PROCESS_NAME="Telegram" 

DIALOG_TEXT_1="Minutes to remember to close $PROCESS_NAME:"
BUTTON_TEXT_OPEN_1="Open $PROCESS_NAME"
BUTTON_TEXT_CLOSE_1="Close $PROCESS_NAME & take a break"
DEFAULT_MINUTES_1="0,2"

DIALOG_TEXT_2="Minutes to remember to close $PROCESS_NAME:"
BUTTON_TEXT_OPEN_2="Keep Open $PROCESS_NAME"
BUTTON_TEXT_CLOSE_2="Close $PROCESS_NAME & take a break"
DEFAULT_MINUTES_2="0,2"

osascript -e 'tell application "Terminal" to set visible of front window to true'

# Got help from here: https://apple.stackexchange.com/q/458152/177042 and here: https://apple.stackexchange.com/q/460004/177042
DIALOG_RESULTS="$(osascript -e 'set {T,B} to {text returned, button returned} of (display dialog "'"$DIALOG_TEXT_1"'" default answer "'"$DEFAULT_MINUTES_1"'" with icon caution buttons {"'"$BUTTON_TEXT_OPEN_1"'", "'"$BUTTON_TEXT_CLOSE_1"'"} default button 2)' -e 'return T & "\t" & B')" &&MINUTES_UNTIL_ASK_TO_CLOSE="$(echo "$DIALOG_RESULTS" |cut -f 1)" &&BUTTON_RETURNED="$(echo "$DIALOG_RESULTS" |cut -f 2)"

echo "DIALOG_RESULTS" $DIALOG_RESULTS
echo "MINUTES_UNTIL_ASK_TO_CLOSE" $MINUTES_UNTIL_ASK_TO_CLOSE
echo "BUTTON_RETURNED" $BUTTON_RETURNED

MINUTES_APP_OPENED=$(($MINUTES_UNTIL_ASK_TO_CLOSE))

if [ "$BUTTON_RETURNED" = "$BUTTON_TEXT_OPEN_1" ] ; then
    open -a "$PROCESS_NAME"
else 
    exit
fi

echo "number_of_iterations" $((MINUTES_UNTIL_ASK_TO_CLOSE * 60 / 5))

for ((i=0; i<=1000; i++)); do

    # Sleep during the time indicated on the variable: MINUTES_UNTIL_ASK_TO_CLOSE
    # But each 5 seconds, checks if the app has been closed or not to close this terminal if so     
    number_of_iterations=$((MINUTES_UNTIL_ASK_TO_CLOSE * 60 / 5))
    for ((a=1; a<=$number_of_iterations; a++)); do
        if pgrep "$PROCESS_NAME"; then
            sleep 5
        else
            exit
        fi
    done

    MINUTES_APP_OPENED=$((MINUTES_APP_OPENED+$MINUTES_UNTIL_ASK_TO_CLOSE*$i))
    echo "----"
    echo
    echo "$PROCESS_NAME has been openened during $MINUTES_APP_OPENED minutes"
    DIALOG_RESULTS="$(osascript -e 'set {T,B} to {text returned, button returned} of (display dialog "'"$DIALOG_TEXT_2"'" default answer "'"$DEFAULT_MINUTES_2"'" with icon caution buttons {"'"$BUTTON_TEXT_OPEN_2"'", "'"$BUTTON_TEXT_CLOSE_2"'"} default button 1)' -e 'return T & "\t" & B')" &&MINUTES_UNTIL_ASK_TO_CLOSE="$(echo "$DIALOG_RESULTS" |cut -f 1)" &&BUTTON_RETURNED="$(echo "$DIALOG_RESULTS" |cut -f 2)"

    echo "In $MINUTES_UNTIL_ASK_TO_CLOSE minutes, you will be asked again if you want close $PROCESS_NAME "

    if [ "$BUTTON_RETURNED" = "$BUTTON_TEXT_CLOSE_2" ] ; then
        pkill -x "$PROCESS_NAME"
        echo "OK pressed. $PROCESS_NAME should be closed now"
        exit
    else
        echo "Cancel pressed. $PROCESS_NAME won't be killed... Yet :D"
        echo
        echo "----"
    fi
done

exit