# Just the first character is printed.
# ------------------------------------------------------- #
# I first try:

i=1
T=1
    sp="/-\|"
    echo -n ' '
    while true # [[ T != 1 ]] # <--- I try using this instead of 'true' but no luck either
    do
#echo '.'; sleep 2 ;
echo -en "\b${sp:i++%${#sp}:1}"
md5sum ./*.iso >> ~/Desktop/Gigantic_verified.md5
T=1
done
echo -ne "\nDone : )\n\n\t"

# ------------------------------------------------------- #
# Then I try:

T=1
while [[ T != 1 ]] ;  do echo '.'; sleep 2 ;

md5sum ./*.iso >> ~/Desktop/Gigantic_verified.md5
T=1
done
echo -ne "\nDone : )\n\n\t"

# ------------------------------------------------------- #
# Then I try:

sp="/-\|"
sc=0

spin() {
    while true [[ T != 1 ]]
    do echo -en "\b${sp:i++%${#sp}:1}"
    done
       }

#echo '.'; sleep 2 ;
md5sum ./*.iso >> ~/Desktop/Gigantic_verified.md5
T=1
#done
echo -ne "\nDone : )\n\n\t"