send2pastebin: support stdin and commands with arguments, and more!

overlay/lower/usr/sbin/send2pastebin

@@ -1,26 +1,22 @@
 #!/bin/sh
 
-if [ -z "$1" ]; then
-	echo "Usage: $0 <filename|command>"
-	exit 1
-fi
+if [ -t 0 ]; then
+	if [ -z "$1" ]; then
+		echo "Usage: $0 <command>"
+		exit 1
+	fi
 
-if [ -f "$1" ]; then
-	file="$1"
-elif which "$1" > /dev/null; then
 	file=$(mktemp)
-	command "$1" > "$file"
+	sh -c "$*" > "$file" 2>&1
 else
-	echo "Cannot find file of command $1"
-	exit 2
+	file=$(mktemp)
+	cat - > "$file"
 fi
 
-if [ -z "$(cat "$file")" ]; then
-	echo "File $file is empty"
-	exit 3
-fi
+[ -s "$file" ] || { echo "File $file is empty"; exit 3; }
 
-url=$(cat "$file" | nc termbin.com 9999)
+url=$(nc termbin.com 9999 < "$file")
 echo "$url"
 
+rm -f "$file"
 exit 0