+if script -S /bin/sh 'echo OK' /dev/null 2>&1 | egrep 'OK' >/dev/null; then
+ #### script(1) uses -S to set the shell that it runs.
+ use_dash_S=1
+else
+ #### Assume that script(1) uses SHELL environment variable.
+ use_dash_S=0
+fi
+
+#### Run a command but don't wait for user input. script(1) seems to do
+#### what we want by not waiting when run in the background.
+run_without_input() {
+ #### Create a command to use as a shell for script.
+ cat >"${cmd}" <<EOF
+#! /bin/sh
+$*
+EOF
+ chmod +x "${cmd}"
+
+ if [ ${use_dash_S} -eq 1 ]; then
+ script -S "${cmd}" "$actual" >/dev/null &
+ else
+ SHELL="${cmd}" script "$actual" >/dev/null &
+ fi
+
+ wait $!
+}