work with relative paths

show2cp

@@ -1,13 +1,17 @@
 #!/bin/bash
 
+#show2cp [md5 file] (relative path root)
+
 md5="$1"
+rootdir=""
+[ -n "$2" ] && rootdir="$2/""
 [ -z "$md5" ] &&  md5=2cp.md5
 [ -f "$md5" ] || { echo "ERROR: $md5 not found"; exit 255; }
 
 function calc_kb() {
  i=0
  cat "$1" | cut -c 34- | while read line; do
-  kb=$(du "$line" | cut -f 1)
+  kb=$(du "${rootdir}${line}" | cut -f 1)
   i=$((i+kb))
   echo $i
  done | tail -n1