show2cp is controlable via argument

show2cp

@@ -1,15 +1,19 @@
 #!/bin/bash
 
+md5=$1
+[ -z "$md5" ] &&  md5=2cp
+[ -f "$md5" ] || { echo "ERROR: $md5 not found"; exit 255; }
+
 function calc_kb() {
  i=0
- cat 2cp | cut -c 35- | while read line; do
+ cat $1 | cut -c 34- | while read line; do
   kb=$(du "$line" | cut -f 1)
   i=$((i+kb))
   echo $i
  done | tail -n1
 }
 
-kb=$(calc_kb)
+kb=$(calc_kb "$md5")
 mb=$((kb/1024))
 gb=$((mb/1024))
 tb=$((gb/1024))