diff --git a/cli/user-info.php b/cli/user-info.php
index 125408c1019..aa4db7c2f00 100755
--- a/cli/user-info.php
+++ b/cli/user-info.php
@@ -2,19 +2,46 @@
 <?php
 require(__DIR__ . '/_cli.php');
 
-$options = getopt('h', array(
-		'user:',
-	));
+const DATA_FORMAT = "%-7s | %-20s | %-25s | %-15s | %-10s | %-10s | %-10s | %-10s | %-10s | %-10s\n";
+
+$params = array(
+	'user:',
+	'header',
+);
+$options = getopt('h', $params);
+
+if (!validateOptions($argv, $params)) {
+	fail('Usage: ' . basename(__FILE__) . ' (-h --header --user username --user username …)');
+}
 
 if (empty($options['user'])) {
-	fail('Usage: ' . basename(__FILE__) . " -h --user username");
+	$users = listUsers();
+} elseif (is_array($options['user'])) {
+	$users = $options['user'];
+} else {
+	$users = array($options['user']);
 }
 
-$users = $options['user'] === '*' ? listUsers() : array($options['user']);
+sort($users);
+
+if (array_key_exists('header', $options)) {
+	printf(
+		DATA_FORMAT,
+		'default',
+		'user',
+		'last update',
+		'space used',
+		'categories',
+		'feeds',
+		'reads',
+		'unreads',
+		'favourites',
+		'tags'
+	);
+}
 
 foreach ($users as $username) {
 	$username = cliInitUser($username);
-	echo $username === FreshRSS_Context::$system_conf->default_user ? '*' : ' ', "\t";
 
 	$catDAO = FreshRSS_Factory::createCategoryDao();
 	$feedDAO = FreshRSS_Factory::createFeedDao($username);
@@ -25,31 +52,23 @@
 	$nbEntries = $entryDAO->countUnreadRead();
 	$nbFavorites = $entryDAO->countUnreadReadFavorites();
 
+	$data = array(
+		'default' => $username === FreshRSS_Context::$system_conf->default_user ? '*' : '',
+		'user' => $username,
+		'lastUpdate' => FreshRSS_UserDAO::mtime($username),
+		'spaceUsed' => $databaseDAO->size(),
+		'categories' => $catDAO->count(),
+		'feeds' => count($feedDAO->listFeedsIds()),
+		'reads' => $nbEntries['read'],
+		'unreads' => $nbEntries['unread'],
+		'favourites' => $nbFavorites['all'],
+		'tags' => $tagDAO->count(),
+	);
 	if (isset($options['h'])) {	//Human format
-		echo
-			$username, "\t",
-			date('c', FreshRSS_UserDAO::mtime($username)), "\t",
-			format_bytes($databaseDAO->size()), "\t",
-			$catDAO->count(), " categories\t",
-			count($feedDAO->listFeedsIds()), " feeds\t",
-			$nbEntries['read'], " reads\t",
-			$nbEntries['unread'], " unreads\t",
-			$nbFavorites['all'], " favourites\t",
-			$tagDAO->count(), " tags\t",
-			"\n";
-	} else {
-		echo
-			$username, "\t",
-			FreshRSS_UserDAO::mtime($username), "\t",
-			$databaseDAO->size(), "\t",
-			$catDAO->count(), "\t",
-			count($feedDAO->listFeedsIds()), "\t",
-			$nbEntries['read'], "\t",
-			$nbEntries['unread'], "\t",
-			$nbFavorites['all'], "\t",
-			$tagDAO->count(), "\t",
-			"\n";
+		$data['lastUpdate'] = date('c', $data['lastUpdate']);
+		$data['spaceUsed'] = format_bytes($data['spaceUsed']);
 	}
+	vprintf(DATA_FORMAT, $data);
 }
 
 done();
diff --git a/lib/lib_rss.php b/lib/lib_rss.php
index bff59d5cc3d..3e0033a61e6 100644
--- a/lib/lib_rss.php
+++ b/lib/lib_rss.php
@@ -170,7 +170,7 @@ function format_bytes($bytes, $precision = 2, $system = 'IEC') {
 	$pow = $bytes === 0 ? 0 : floor(log($bytes) / log($base));
 	$pow = min($pow, count($units) - 1);
 	$bytes /= pow($base, $pow);
-	return format_number($bytes, $precision) . ' ' . $units[$pow];
+	return format_number($bytes, $precision) . ' ' . $units[$pow];
 }
 
 function timestamptodate ($t, $hour = true) {