minor edits on variable quoting

README.md

@@ -44,8 +44,14 @@ or equivalently:
   ./v gopher://kalos.mine.nu
 ```
 
-This command will download the corresponding resource, and print it on
-output with line numbers. An excerpt is reported below:
+This command will download the corresponding resource. If you want to 
+print it on output with line numbers, just give the command:
+
+```
+%n [ENTER]
+```
+
+and you should see something like:
 
 ```
 ...

gophed

@@ -32,16 +32,16 @@ usage() {
 }
 
 goto_url(){
-        URL="$(echo $1 | sed 's,gopher://,,g')"
+        URL="$(echo "$1" | sed 's,gopher://,,g')"
         hostport=$(echo "$URL" | cut -d "/" -f 1)
-        host="$(echo $hostport | cut -d ":" -f 1)"
-        port="$(echo $hostport | cut -s -d ":" -f 2)"
+        host="$(echo "$hostport" | cut -d ":" -f 1)"
+        port="$(echo "$hostport" | cut -s -d ":" -f 2)"
         [ -z "$port" ] && port='70'
         type=$(echo "$URL" | cut -s -d "/" -f 2)
         [ -z "$type" ] && {
 		type='1'
                 sel="/"
-		go $sel $host $port
+		go "$sel" "$host" "$port"
 		return
         }
         [ -n "${type#?}" ] && echo "Invalid Gopher URL" >&2 && exit 1
@@ -49,12 +49,12 @@ goto_url(){
         type="$(echo $type | sed -n '/^[0-9ITghis+]$/p')"
         [ -z "${type}" ] && echo "Invalid Gopher URL" >&2 && exit 1
         sel=/$(echo "$URL" | cut -s -d "/" -f 3-)
-        go $sel $host $port
+        go "$sel" "$host" "$port"
 }
 
 
 
-trap cleanup INT QUIT HUP KILL ABRT TERM
+trap cleanup INT QUIT HUP ABRT TERM
 
 [ "$#" -lt 1 ] || [ "$1" = "-h" ] && usage
 
@@ -72,7 +72,7 @@ if [ "$script_name" = "gophed" ] || [ "$script_name" = "v" ]; then
 	sel="$(printf '%s' "$1" | sed -r 's:/:+:g')"
 	TMPFILE="$(mktemp "/tmp/gophed_${2}_${sel}_$3.XXXXXXXXXXXXXXXXXXX")"
 	goto_url "$1" > "$TMPFILE"
-	while read line; do echo $line; done | ed -p "$PROMPT" "$TMPFILE" 
+	while read -r line; do echo "$line"; done | ed -p "$PROMPT" "$TMPFILE" 
 	cleanup
 	exit 0
 fi
@@ -87,7 +87,7 @@ if [ "$script_name" = "g" ] || [ "$script_name" = "d" ]; then
 		SEL="$(printf '%s' "$RESOURCE" | sed -r 's:/:+:g')"
 		TMPFILE="$(mktemp "/tmp/gophed_${HOST}_${SEL}_$PORT.XXXXXXXXXXXXXXXXXXX")"
 		go "$RESOURCE" "$HOST" "$PORT" > "$TMPFILE"
-		while read line; do echo $line; done | ed -p "$PROMPT" "$TMPFILE"
+		while read -r line; do echo "$line"; done | ed -p "$PROMPT" "$TMPFILE"
 	fi
 	if [ "$script_name" = "d" ]; then
 		DIR_RESOURCE="$(dirname "$RESOURCE")"
@@ -98,7 +98,7 @@ if [ "$script_name" = "g" ] || [ "$script_name" = "d" ]; then
 	cleanup
 	exit 0
 fi
-printf '%s: command not found\n' "$scriptname"
+printf '%s: command not found\n' "$script_name"
 
 cleanup