fixed unary exceptions and posix compatibilty

gnano

@@ -30,12 +30,12 @@ if [ "$argument" = "" ]; then
 fi
 
 #OPTIONS:
-if [ $option = "--list" ] || [ $option = "-l" ]; then
+if [[ $option = "--list" ]] || [[ $option = "-l" ]]; then
 	echo "RECIPIENTS:"
 	gpg --batch --list-only --no-default-keyring --secret-keyring /dev/null $argument
         exit 1
 fi
-if [ $option = "--help" ] || [ $option = "-h" ]; then
+if [[ $option = "--help" ]] || [[ $option = "-h" ]]; then
         echo "Usage: gnano [OPTIONS] FILE"
 	echo ""
 	echo "Option	GNU long option		Meaning"
@@ -45,7 +45,7 @@ if [ $option = "--help" ] || [ $option = "-h" ]; then
 	echo "no options			giving only a filename the program decyphers the file, edits it, and recyphers it with the correct recipients"
 	exit 1
 fi
-if [ $option = "--new" ] || [ $option = "-n" ]; then
+if [[ $option = "--new" ]] || [[ $option = "-n" ]]; then
 	new=1
 	echo "STARTING CREATION OF NEW FILE:"
 	echo "your is the task to retrieve the keys or emails of the recipients, I can't do it"
@@ -58,7 +58,7 @@ if [ $option = "--new" ] || [ $option = "-n" ]; then
 fi
 
 #LOOP FOR EXISTING FILE:
-if [ "$new" -eq "0" ]; then
+if [[ $new -eq "0" ]]; then
         if [ ! -f $argument ]; then
                 echo "FILE NOT FOUND, EXITING"
                 exit 1
@@ -73,7 +73,7 @@ if [ "$new" -eq "0" ]; then
 		recipients+="-r $recipient "
 	done <$tempfile
 
-	if [ "$recipients" = "" ]; then
+	if [[ $recipients = "" ]]; then
 		echo "ERROR retrieving recipients, known issue, retry!"
 		exit 1
 	fi
@@ -82,7 +82,7 @@ if [ "$new" -eq "0" ]; then
 fi
 
 #LOOP OFR NEW FILE:
-if [ "$new" -eq "1" ]; then
+if [[ $new -eq "1" ]]; then
 	for newrcpt in $(echo $newrecipients | tr "," "\n")
 	do
 		recipients+="-r $newrcpt "
@@ -96,4 +96,4 @@ if [ "$new" -eq "1" ]; then
 fi
 
 #clearing tempfile:
-rm $tempfile
+rm $tempfile