"$@" vs "$@"Take this script for example (taken from the linked answer):
for var in "$@"
do
echo "$var"
done
Gives this:
$ sh test.sh 1 2 ‘3 4’
1
2
3 4
Now change “$@” to $*:
for var in $*
do
echo "$var"
done
And you get this:
$ sh test.sh 1 2 ‘3 4’
1
2
3
4
echo "echo 1 2 3"
for i in 1 2 3
do
echo $i
done
echo "echo all args passed in"
for i
do
echo $i
done
echo "\$# holds number of argument. like args.length in Java main"
echo $#
#switch-case
case $# in
0) echo "0 argument.";;
1) echo "1 argument.";;
*) echo "$# arguments.";;
esac