UNIX for Dummies Questions & Answers

#!/usr/bin/csh

# Here are the variables that you will need to change:
################################################################################
set number_of_files = 23           # This is the number of files that you expect
                                   # to store in each directory
set source_dir = /tmp/testing      # You'll change this to your source directory
set target_dir = /tmp/folder_      # This is the prefix that you'll use for your
                                   # folder tree. You'll likely wish to change it

# Here are the 'static' variables that you will not change:
################################################################################
#this number will increment the count cap
set count = 0
#iteration counters
set folder_counter = 1  # Starts at one, such that multiplication issues don't arise
set counter = 0


# Get your list of files - I'm taking it from an ls -tr
# This provides an historic list, with the oldest files first

foreach file ( `ls -tr $source_dir` )
   @ counter = $counter + 1
   @ count = $number_of_files * $folder_counter   #First time 'round, this is 3, then 6

   # First, check to see if you should move on to the next folder or not...
   #  - adding a 'move' request to ensure that the file is not skipped
   if ($counter > $count) then
      @ folder_counter++
      mv $source_dir/$file $target_dir$folder_counter
   endif


   # Since you didn't need to increment the folder_counter - move the file as if nothing happened...
   if ($counter <= ($count)) then
      mv $source_dir/$file $target_dir$folder_counter
   endif

end

#!/bin/csh

# Here are the variables that you will need to change:
################################################################################
set number_of_files = 23              # This is the number of files that you
                                      # expect to store in each directory
set total_files_to_move = 92          # This is the total number of files that
                                      # you will move with this utility
set source_dir = ./                   # set to 'current' directory
set target_dir = ./DTI                # This is the prefix that you'll use for
                                      # the folder tree.

# Here are the 'static' variables that you will not change:
################################################################################
#this number will increment the count cap
set count = 0
#iteration counters
set folder_counter = 1  # Starts at one, such that multiplication issues don't arise
set counter = 0

# Get your list of files
foreach file ( `ls -tr $source_dir` )
   @ counter = $counter + 1
   @ count = $number_of_files * $folder_counter

   # Test to see if the first target directory exists
   if (! -d $target_dir$folder_counter ) then
      mkdir $target_dir$folder_counter
   endif

# Test to see if the maximum number of files to move have been moved
   if ($counter > ($total_files_to_move)) then
      exit
   endif


   # Check to see if you should move on to the next folder or not...
   if ($counter > $count) then
      @ folder_counter++

      # Test to see if subsequent target directory exists
      if (! -d $target_dir$folder_counter ) then
         mkdir $target_dir$folder_counter
      endif

      mv $source_dir/$file $target_dir$folder_counter/$file
   endif

   # Since you didn't need to increment the folder_counter - move the file as if nothing happened...
   if ($counter <= ($count)) then
      mv $source_dir/$file $target_dir$folder_counter/$file
   endif
end