How to preserve double quotes in $@ in a shell script?

Question

Let\'s say I have a really simple shell script \'foo\':

  #!/bin/sh
  echo $@

If I invoke it like so:

  foo 1 2 3
         


        

Answer 1

What i'd do is to quote all the arguments received with spaces that might help your case.

for x in "${@}" ; do
    # try to figure out if quoting was required for the $x
    if [[ "$x" != "${x%[[:space:]]*}" ]]; then
        x="\""$x"\""
    fi
    echo $x
    _args=$_args" "$x
done

echo "All Cmd Args are: $_args"