diff --git a/functions.sh b/functions.sh
index d3ca1ef..1558893 100755
--- a/functions.sh
+++ b/functions.sh
@@ -119,7 +119,7 @@ function fileMustContains {
   shift
   string=$@
   if [ ! -f $file ] ; then echo -ne "0;" ; return 0 ;fi
-  if ( grep -i -qE "${string}" $file ) ;
+  if ( grep -i -qE -- "${string}" $file ) ;
     then echo -ne "1;"
   else
     echo -ne "0;"
@@ -140,6 +140,25 @@ function fileCountPattern {
   e "$num"
 }
 
+# Ok if file contains at least N pattern
+# arg1: file
+# arg2: num of expected item
+# arg3: pattern
+function fileMustContainsMoreNItem {
+  file=$1
+  n=$2
+  shift
+  shift
+  string=$@
+  if [ ! -f $file ] ; then echo -ne "0;" ; return 0 ;fi
+  num=$(grep -ciE "${string}" $file )
+  if [ $num -ge $n ] ;
+    then echo -ne "1;"
+  else
+    echo -ne "0;"
+  fi
+}
+
 # Ok if file contains N pattern
 # arg1: file
 # arg2: num of expected item
@@ -196,7 +215,7 @@ function addHeader {
 # get file content
 # arg1: file to read
 function getFileContent {
-  test -f $1 && content="$(cat $1 | sed 's/\n//');"
+  test -f $1 && content="$(cat $1 | sed 's/\n//');" || content="NULL;"
   echo -ne "${content}"
 }
 
@@ -283,9 +302,8 @@ function commandOutput {
   chroot=$1
   shift
   command="$@"
-  result=$(chroot ${chroot} bash -c "$command" 2> /dev/null)
-  ret=$?
-  if [ $ret -eq 0 ] ; then e ${result:=0} ; else e 0 ; fi
+  result=$(chroot ${chroot} bash -c "$command" 2>&1)
+  e "$result"
   }
 
 # get num of files in given dir