for i in *.zip
do
    echo "$i"
done

declare -a testArray={"element1" "element2"}
echo ${testArray[0]}
for i in "${testArray[@]}"
do
    echo "$i"
done

# write in file "testsplit.sh"
IFS=',' read -ra splitArray <<< "This,is,a,test"
for i in "${splitArray[@]}"
do
    echo "$i"
done

$ bash testsplit.sh
This
is
a
test

# 注意等号前后不能加空格
listOutput=`ls -l`
echo "$listOutput"

touch testfile
printf "hello\n" > testfile
printf "world\n" >> testfile

echo "myPassword" | sudo -S myCommond