Shell Symbols
$# csh, sh Number of arguments to script $* csh, sh Arguments to script $@ sh Original arguments to script $- sh Flags passed to shell ${array[@]} leads to each element of the array being treated as a separate shell-word ${array[*]} results in a single shell-word with all of the elements of the array separated by spaces (or whatever the first character of IFS is) Difference between $@ and $* $@ ./test_shell "w1 w2" w3 w4 $@ will be w1 w2 w3 w4 $* ./test_shell "w1 w2" w3 w4 $* will be w1 w2 w3 w4