Batch join .001 files?

Comments

• Mon5t3r Member

  May 2013

  hjsplit?
• sonic Veteran

  May 2013

  Mon5t3r said: hjsplit?

  hjsplit for linux? can it help me bactch join in one command?
• tux Member

  May 2013

  http://lxsplit.sourceforge.net/
• sonic Veteran

  May 2013

  tux said: http://lxsplit.sourceforge.net/

  Did you read my first post?
  I know how to split and merge file. cat, hjsplit,... can do it.

  But what i want to know is how to batch join files.
• Mon5t3r Member

  May 2013

  @sonic said: can it help me bactch join in one command?

  i can't remember, sorry. And i was using it only for merging two files max.
• tehdan Member

  May 2013

  you can do this in 2 stages, which is best if you want to be cautious.

  First, you need a list of the files you're trying to recreate, get this with -

  ls | sed 's/\.[0-9][0-9][0-9]$//' | sort | uniq > .filelist
  

  this should take a list of all files, chop the .nnn extensions off and find the unique values - so the file '.filelist' should contain a list of your target files - check it carefully. I've made .filelist a hidden file so it doesn't get listed in the file itself. You should get something like -

  a.avi
  b.avi
  c.avi
  

  Alternatively, you could produce this file by hand. Now use a for loop with your original cat command -

  for f in `cat .filelist` ; do
    cat ${f}.[0-9][0-9][0-9] > ${f}.avi
    echo -n .
  done
  

  the echo -n . line is optional, but its a quick way to see some progress - you'll get a . for each complete concatenation.

  Its possible that if your source files aren't named strictly according to your convention that this will screw up - check your results before you delete the source files

  If you're very brave, you can stick the first command in place of cat .filelist in the 2nd command.
• t3k9 Member

  May 2013

  #!/bin/bash
  
  for i in *avi.001; do
          B=$(basename $i .001)
          cat $(ls $B.* | xargs) > $B
  done
  

  Thanked by 1fLoo