$@ vs $star

VERY IMPORTANT! ⚠️⚠️ $@ = $* = "every" "option" "in quotes" The difference is when you surround them in quotes: "$@" = ""every" "option" "in quotes"" "$*" = "every option in quotes"

for variable in "a" "b" "c d e" ; do
	echo $variable 
	# This echos:
	# a
	# b
	# c
done

$* expands into “all of my arguments” Pretend I pass in “I” “love” “Toronto Island” as arguments:

for var in $* ; do
	echo $var
done
# Prints:
# I
# love
# Toronto
# Island
# since after expanding, the above is equivalent to 

Gimmick with for loops

The list of things to iterate over can either all be surrounded in quotes or not surrounded and will behave identically.

echo "" >> out1.txt
echo "" >> out2.txt
 
for a in "a b c d e f gun" ; do
	echo a >> out1.txt
done