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Full Discussion: Script to compare files in 2 folders and delete the large file
Top Forums Shell Programming and Scripting Script to compare files in 2 folders and delete the large file Post 302999907 by jim mcnamara on Thursday 29th of June 2017 07:20:45 PM
Old 06-29-2017
Three typos made this a mess. Check for zero length files added. You can remove it.
Apologies. Thanks Rudi for spotting the problem.

Code:
# get all the filenames in one place -> /tmp/list
find /path/to/directory1 /path/to/directory2 -type f > /tmp/list
#  you now have all the file names
#
# rewrite /tmp/list to have the correct values
while read fname   # fname is the complete file name
do
      shortfile=$(basename $fname)
      shortfile=${shortfile%%.*}
      size=$(stat -c '%s' $fname)
      [ $size -eq 0 ] && continue # skip zero-length files 
      echo "$shortfile $size $fname"
done < /tmp/list > /tmp/next

# /tmp/next has the data, so let's sort and aggregate it -  assuming no spaces in the shortfile name
# sort by shortfile

sort -k1 -k2n -o /tmp/next /tmp/next

# aggregate
# awk fields are $1 - shortfile, $2 - size,  $3 - fullname
awk '{ 
         arr[$1]=$3 " " $2  # note that the last values to be stored for shortfile
                                   # come from  the last time shortfile is in the file
                                   
        }
         END { for (i in arr) {print arr[i]} }
        ' /tmp/next > /tmp/final
        
# removed the rm stuff for now

 

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LEARN ABOUT OPENSOLARIS

rmvb

rmvb(9F)						   Kernel Functions for Drivers 						  rmvb(9F)

NAME

       rmvb - remove a message block from a message

SYNOPSIS

       #include <sys/stream.h>

       mblk_t *rmvb(mblk_t *mp, mblk_t *bp);

INTERFACE LEVEL

       Architecture independent level 1 (DDI/DKI).

PARAMETERS

       mp    Message from which a block is to be removed. mblk_t is an instance of the msgb(9S) structure.

       bp    Message block to be removed.

DESCRIPTION

       The  rmvb()  function  removes a message block (bp) from a message (mp), and returns a pointer to the altered message. The message block is
       not freed, merely removed from the message. It is the module or driver's responsibility to free the message block.

RETURN VALUES

       If successful, a pointer to the message (minus the removed block) is returned. The pointer is NULL if bp was the only block of the  message
       before  rmvb() was called. If the designated message block (bp) does not exist, -1 is returned.

CONTEXT

       The rmvb() function can be called from user, interrupt, or kernel context.

EXAMPLES

       This  routine  removes  all  zero-length M_DATA message blocks from the given message. For each message block in the message, save the next
       message block (line 10). If the current message block is of type M_DATA and has no data in its buffer (line 11), then remove  it  from  the
       message (line 12) and free it (line 13). In either case, continue with the next message block in the message (line 16).

	 1  void
	  2  xxclean(mp)
	  3	 mblk_t *mp;
	  4  {
	  5	     mblk_t *tmp;
	  6	     mblk_t *nmp;
	  7
	  8	     tmp = mp;
	  9	     while (tmp) {
	 10		      nmp = tmp->b_cont;
	 11		      if ((tmp->b_datap->db_type == M_DATA) &&
				    (tmp->b_rptr == tmp->b_wptr)) {
	 12			   (void) rmvb(mp, tmp);
	 13			   freeb(tmp);
	 14		      }
	 15		      tmp = nmp;
	 16	     }
	 17  }

SEE ALSO

       freeb(9F), msgb(9S)

       Writing Device Drivers

       STREAMS Programming Guide

SunOS 5.11							    16 Jan 2006 							  rmvb(9F)
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