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Full Discussion: calculate size of some files
Top Forums Shell Programming and Scripting calculate size of some files Post 78691 by vgersh99 on Thursday 21st of July 2005 12:23:52 PM
Old 07-21-2005
Quote:
Originally Posted by becket
Code:
sum=0 
for filesize in  $(  ls -la |grep $(date -d '1 month ago' +%Y-%m )|awk '{print $5}'  ) 
do 
   let sum=sum+filesize 
done 
echo sum $sum

Again - this is GNU-based AND you're using grep AND awk all in one - in most cases it's considered UUOG
 

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LEARN ABOUT OPENSOLARIS

sum

sum(1B) 					     SunOS/BSD Compatibility Package Commands						   sum(1B)

NAME

       sum - calculate a checksum for a file

SYNOPSIS

       /usr/ucb/sum file...

DESCRIPTION

       sum  calculates	and  displays a 16-bit checksum for the named file and displays the size of the file in kilobytes. It is typically used to
       look for bad spots, or to validate a file communicated over some transmission line. The checksum is calculated by an  algorithm	which  may
       yield different results on machines with 16-bit ints and machines with 32-bit ints, so it cannot always be used to validate that a file has
       been transferred between machines with different-sized ints.

USAGE

       See largefile(5) for the description of the behavior of sum when encountering files greater than or equal to 2 Gbyte ( 2^31 bytes).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       sum(1), wc(1), attributes(5), largefile(5)

DIAGNOSTICS

       Read error is indistinguishable from EOF on most devices; check the block count.

NOTES

       sum and /usr/bin/sum (see sum(1)) return different checksums.

       This utility is obsolete.

SunOS 5.11							    8 Nov 1995								   sum(1B)
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