Basic for-loops with strings, arrays, file names, and arguments.

#!/bin/bash

printf "Here are some basic loops with arrays, strings, file names, and arguments.\n"

# Array of strings
printf "\nArray of strings:\n"
myvalues=("value1" "value2" "value3")
for value in ${myvalues[@]}
do
    echo "    value: "$value
done

# String with spaces in it.
printf "\nString with spaces:\n"
myvalues2="my short string"
for value in $myvalues2
do
    echo "    test: "$value
done

# All files in directory
printf "\nAll Files:\n"
for filename in *
do
    echo "    found file: "$filename
done

# All shell scripts in current directory
printf "\nAll shell scripts:\n"
for shellscript in *.sh
do
    echo "    found shell script: "$shellscript
done

# arguments
if [ -z "$1" ]; then
    printf "\nYou didn't pass any arguments, pass some for this test.\n"
else
    printf "\nArguments passed:\n"
    for argument in $@
    do
        echo "    argument: "$argument
    done
fi

printf "\nFinished.\n"