how to emulate "${@:2}" in /bin/dash

Question

In bash, this syntax can be used to get list of command line arguments, starting from $2:

echo "${@:2}"

This syntax does not seem to work in sh (/bin/dash).

What would be the best way to emulate this in sh ?

Answer 1

(shift; echo "$@")

Using the subshell created by the parens ensures that "$@" in the outer scope is not modified.

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As another approach (uglier, but avoiding the need for a subshell), you can remove the first argument, and re-add it later:

argOne=$1               # put $1 in $argOne
shift                   # rename $2 to $1, $3 to $2, etc
echo "$@"               # Pass the new argument list to echo
set -- "$argOne" "$@"   # Create a new argument list, restoring argOne before the rest