arguments

#!/bin/bash

# Print all command line arguments. If used in GUI, also prints relevant
# Nautilus Scripts vars and uses zenity for output

# Use -v var1 [var2...] to inspect shell/env variables

var=0

get_var() {
	{ declare -p $1 2>/dev/null || echo "declare - $1: not set" ; } |
	awk '/^declare/{$1="";$2=sprintf("%-3s",substr($2,2))}1'
}

i=0
while [ $# -gt 0 ]; do
	((i++))
	output+="\$$i=$1\n"
	((var)) && vars+="$(get_var "$1")\n"
	case "$1" in -v) var=1 ;; esac
	shift
done

output+="$vars"

if [[ "$TERM" == "dumb" ]] ; then
	if [[ "$output" ]]; then output+="\n"; fi
	output+="PWD\n$PWD\n\n"
	output+="NAUTILUS_SCRIPT_CURRENT_URI\n${NAUTILUS_SCRIPT_CURRENT_URI:+$NAUTILUS_SCRIPT_CURRENT_URI\n\n}"
	output+="NAUTILUS_SCRIPT_SELECTED_URIS\n${NAUTILUS_SCRIPT_SELECTED_URIS:+$NAUTILUS_SCRIPT_SELECTED_URIS\n}"
	output+="NAUTILUS_SCRIPT_SELECTED_FILE_PATHS\n${NAUTILUS_SCRIPT_SELECTED_FILE_PATHS:+$NAUTILUS_SCRIPT_SELECTED_FILE_PATHS\n}"
	msg=$output
	msg="${msg//&/&}"
	msg="${msg//</&lt;}"
	zenity --info --no-wrap --text "$msg"
else
	if [[ "$output" ]]; then printf "%b" "$output"; fi
fi