thanks to Claude, this script actually has become the way I wanted it to be. It is alpha-num sorted, column width adapted, and alternative rows are now in yellow. There is also a -s parameter if you have a known value you are looking for. If found it will be marked in green text. Marvelous changes!

CHANGELOG.md

@@ -3,6 +3,7 @@ All notable changes to this project will be documented in this file.
 This project uses the changelog in accordance with [keepchangelog](http://keepachangelog.com/). Please use this to write notable changes, which is not the same as git commit log...
 
 ## [unreleased][unreleased]
+- Modified `data_hex_crc.lua` script,  it now takes a `-s` parameter and the output is now in alternative row colors. (@iceman1001)
 - Added `hf mfdes brutedamslot` command (@kormax)
 - Added `hf mfdes getdelegateappinfo` command (@kormax)
 - Added `hf secc info` command to retrieve the Card Recognition Template(@antiklesys)

client/luascripts/data_hex_crc.lua

@@ -4,19 +4,21 @@ local ansicolors  = require('ansicolors')
 
 copyright = ''
 author = 'Iceman'
-version = 'v1.0.2'
+version = 'v1.0.3'
 desc = [[
 This script calculates many checksums (CRC) over the provided hex input.
 ]]
 example = [[
-    script run data_hex_crc -b 010203040506070809
-    script run data_hex_crc -b 010203040506070809 -w 16
+    script run data_hex_crc -d 010203040506070809
+    script run data_hex_crc -d 010203040506070809 -w 16
+    script run data_hex_crc -d 010203040506070809 -w 16 -s 47ED
 ]]
 usage = [[
-script run data_hex_crc [-b <hex bytes] [-w <width>]
+script run data_hex_crc [-d <hex bytes] [-w <width>]
 ]]
 arguments = [[
-     -b       data in hex
+     -d       data in hex
+     -s       search for a value in the calculated crc and mark it green
      -w       bitwidth of the CRC family of algorithm. <optional> defaults to all known CRC presets.
 ]]
 ---
@@ -58,38 +60,110 @@ end
 -- The main entry point
 function main(args)
 
+    local search
     local data
     local width = 0
 
     -- Read the parameters
-    for o, a in getopt.getopt(args, 'hb:w:') do
+    for o, a in getopt.getopt(args, 'hd:w:s:') do
         if o == 'h' then return help() end
-        if o == 'b' then data = a end
+        if o == 'd' then data = a end
+        if o == 's' then search = a end
         if o == 'w' then width = a end
     end
 
+    -- sanitize lua args parsing  
     data = data or '01020304'
     width = width or 0
+    search = search or 0
 
-    print( string.rep('-',60) )
-    print('Bit width of CRC | '..width)
-    print('Bytes            | '..data)
+    local seplen = math.min(math.max(#('CRC width... '..width), #('Bytes....... '..data)), 80)
+    local sep = string.rep('-', seplen)
+
+    -- header
     print('')
-    print( ('%-20s| %-16s| %s'):format('Model','CRC', 'CRC reverse','bigEnd', 'bigEnd','little','little'))
-    print( string.rep('-',60) )
+    print(ansicolors.cyan.. 'CRC calculations' .. ansicolors.reset)
+    print(sep)
+    print('CRC width... '..width)
+    print('Bytes....... ' .. ansicolors.green .. data .. ansicolors.reset)
+    print(sep)
+    print('')
+
     local lists, err = core.reveng_models(width)
+
     if lists == nil then return oops(err) end
 
+    -- first pass: compute all values and find max CRC length
+    local results = {}
+    local maxlen = 0
     for _,i in pairs(lists) do
         if string.len(i) > 1 then
-            local a1 = core.reveng_runmodel(i, data, false, '0')
-            local a2 = core.reveng_runmodel(i, data, true, '0')
-            local a3 = core.reveng_runmodel(i, data, false, 'b')
-            local a4 = core.reveng_runmodel(i, data, false, 'B')
-            local a5 = core.reveng_runmodel(i, data, false, 'l')
-            local a6 = core.reveng_runmodel(i, data, false, 'L')
-            print( ('%-20s| %-16s| %-16s| %-16s| %-16s| %-16s| %-16s'):format(i, a1:upper(), a2:upper(),a3:upper(),a4:upper(),a5:upper(),a6:upper() ) )
+
+            --  model name,  hex,  reverse,  endian
+            local a1 = core.reveng_runmodel(i, data, false, '0'):upper()
+            local a2 = core.reveng_runmodel(i, data, true,  '0'):upper()
+            local a3 = core.reveng_runmodel(i, data, false, 'b'):upper()
+            local a4 = core.reveng_runmodel(i, data, false, 'B'):upper()
+            local a5 = core.reveng_runmodel(i, data, false, 'l'):upper()
+            local a6 = core.reveng_runmodel(i, data, false, 'L'):upper()
+
+            results[#results+1] = {i, a1, a2, a3, a4, a5, a6}
+
+            for _, v in ipairs({a1, a2, a3, a4, a5, a6}) do
+                if #v > maxlen then 
+                    maxlen = #v
         end
+            end
+        end
+    end
+
+    table.sort(results, function(a, b)
+        local na = tonumber(a[1]:match('^%a+%-(%d+)')) or 0
+        local nb = tonumber(b[1]:match('^%a+%-(%d+)')) or 0
+        if na ~= nb then return na < nb end
+        return a[1]:lower() < b[1]:lower()
+    end)
+
+    -- column width = crc length + one space each side
+    local cw = maxlen + 2
+
+    local hcols = {
+        {'',    'CRC'},
+        {'CRC', 'rev'},
+        {'',     'be'},
+        {'',     'BE'},
+        {'',     'le'},
+        {'',     'LE'},
+    }
+
+    local function hrow(line)
+        local cells = {}
+        for _, h in ipairs(hcols) do
+            cells[#cells+1] = ('%-'..(cw - 1)..'s'):format(h[line])
+        end
+        return cells
+    end
+
+    print(('%-24s| '):format('')       .. table.concat(hrow(1), '| '))
+    print(('%-24s| '):format('Model') .. table.concat(hrow(2), '| '))
+    print( string.rep('-', 26 + (cw + 1) * 6) )
+
+    local row = 0
+    for _, entry in ipairs(results) do
+        local name = entry[1]
+        row = row + 1
+        local base = (row % 2 == 1) and ansicolors.yellow or ''
+
+        local function fmt(v)
+            local cell = ('%-'.. (cw-1) ..'s'):format(v)  -- one space left pad, right-pad to cw
+            if search ~= 0 and v == search:upper() then
+                return ansicolors.green .. cell .. ansicolors.reset .. base
+            end
+            return cell
+        end
+
+        local values = fmt(entry[2]) ..'| '.. fmt(entry[3]) ..'| '.. fmt(entry[4]) ..'| '.. fmt(entry[5]) ..'| '.. fmt(entry[6]) ..'| '.. fmt(entry[7])
+        print(base .. ('%-24s| '):format(name) .. values .. ansicolors.reset)
     end
 end