☰

compare 2 matrices, por ejemplo. csv

tag-icon • tag-icon windows shell
compare 2 matrices, por ejemplo. csv

Me gustaría saber si es posible comparar 2 listas mediante Shell. La puesta en marcha:

Lista " A" con aproximadamente 6000 entradas
Lista " B" con aproximadamente 300 entradas

¿Es posible detectar cuáles están duplicados y cuáles son únicos en " B"? ¿Hay alguna manera de guardarlos en un archivo adicional?

Gracias

Respuesta1

Si (como supongo) desea comparar dos archivos ASCII/Texto, puede usar FC:

FC.exe

Compare the contents of two files or sets of files. Display any lines which do NOT match.

Syntax
      FC /B pathname1 pathname2

      FC [options] pathname1 pathname2

Key
   /B  : Perform a binary comparison.

options
   /C  : Do a case insensitive string comparison

   /A  : Displays only first and last lines for each set of differences.

   /U  : Compare files as UNICODE text files.
   /L  : Compares files as ASCII text. (default)

   /N  : Display line numbers (ASCII only)

   /LBn: Limit the number of lines that will be read, "n" sets a maximum number
         of consecutive differing lines after which the File Comparison will abort (resync failed)
         When FC aborts then "n" number of mismatches will be shown.
         default=100 lines.

  /nnnn  : Specify a number of consecutive lines that must match after a mismatch.
           This can be used to prevent the display of the two files from getting 
           too out of sync

  /T     : Do not expand tabs to spaces.
  /W     : Compress white space (tabs and spaces) for comparison.

To compare sets of files, use wildcards in pathname1 and pathname2 parameters.

Powershell also has an Alias FC for the Format-Custom cmdlet, therefore to run the 'old' FC under powershell you need to explicitly run C:\windows\system32\fc.exe

To identify 2 identical files use this syntax:

   FC file1.txt file2.txt | FIND "FC: no dif" > nul 
   IF ERRORLEVEL 1 goto :s_files_are_different

información relacionada