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Full Discussion: Chksum on two directories then copy if they are not identical or existing
Top Forums Shell Programming and Scripting Chksum on two directories then copy if they are not identical or existing Post 303000204 by kenshinhimura on Thursday 6th of July 2017 02:05:01 PM
Old 07-06-2017
After running diff.
thanks

cp: cannot stat ‘aa': No such file or directory
cp: cannot stat ‘asdasda': No such file or directory
cp: cannot create regular file ‘/zunauweb.vf6': Permission denied

---------- Post updated at 07:23 AM ---------- Previous update was at 07:19 AM ----------

Code:
diff -y -b --suppress-common-lines /tmp/srcsum /tmp/dstsum | awk -vdstpath="$DESTPATH" '{print "echo cp", $2, dstpath "/" $2}' | sh

IN that command, where is the sourcepath

Code:
diff -y -b --suppress-common-lines /tmp/src1 /tmp/dest1
3cdbca7c78ccd11f9314e4bf0da3b20d  aa                          <
00039a616135792fb609d04cf27aed95  asdasda                     <
64c5ca1dc4582da68818adae80507c8c  zunauweb.vf6                | 125993721bfdcc9f8de614a182da0a01  zunauweb.vf6

Code:
cat aa
#cd $DSTPATH
cd /tmp/rac
md5sum * > /tmp/src1
#cd $SRCPATH
cd  /tmp/rac1
md5sum * > /tmp/dest1
diff -y -b --suppress-common-lines /tmp/src1 /tmp/dest1 | awk -vdstpath="$DESTPATH" '{print "cp", $2, /tmp/rac1 "/" $2}' | sh

---------- Post updated at 01:05 PM ---------- Previous update was at 07:23 AM ----------

I figured it out. Thank you all.
 

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LEARN ABOUT PHP

bdiff

bdiff(1)							   User Commands							  bdiff(1)

NAME

       bdiff - big diff

SYNOPSIS

       bdiff filename1 filename2 [n] [-s]

DESCRIPTION

       bdiff  is  used in a manner analogous to diff to find which lines in filename1 and filename2 must be changed to bring the files into agree-
       ment. Its purpose is to allow processing of files too large for diff. If filename1 (filename2) is -, the standard input is read.

       bdiff ignores lines common to the beginning of both files, splits the remainder of each file into n-line segments, and invokes diff on cor-
       responding segments. If both optional arguments are specified, they must appear in the order indicated above.

       The  output  of	bdiff  is exactly that of diff, with line numbers adjusted to account for the segmenting of the files (that is, to make it
       look as if the files had been processed whole). Note:  Because of the segmenting of the files, bdiff does not necessarily find  a  smallest
       sufficient set of file differences.

OPTIONS

       n	The  number  of line segments. The value of n is 3500 by default. If the optional third argument is given and it is numeric, it is
		used as the value for n. This is useful in those cases in which 3500-line segments are too large for diff, causing it to fail.

       -s	Specifies that no diagnostics are to be printed by bdiff (silent option). Note:  However, this does not suppress possible diagnos-
		tic messages from diff, which bdiff calls.

USAGE

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

FILES

       /tmp/bd?????

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWesu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       diff(1), attributes(5), largefile(5)

DIAGNOSTICS

       Use help for explanations.

SunOS 5.10							    14 Sep 1992 							  bdiff(1)
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