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Full Discussion: any better way to remove line breaks
Top Forums Shell Programming and Scripting any better way to remove line breaks Post 302243581 by csmklee on Monday 6th of October 2008 04:37:33 AM
Old 10-06-2008
any better way to remove line breaks
Hi,

I got some log files which print the whole xml message in separate lines:
e.g.
2008-10-01 14:21:44,561 INFO do something
2008-10-01 14:21:44,561 INFO print xml : <?xml version="1.0" encoding="UTF-8"?>
<a>
<b>my data</b>
</a>
2008-10-01 14:21:44,563 INFO do something again

I want to convert the xml part into one single line, e.g.
2008-10-01 14:21:44,561 INFO do something
2008-10-01 14:21:44,561 INFO print xml : <?xml version="1.0" encoding="UTF-8"?><a><b>my data</b></a>
2008-10-01 14:21:44,563 INFO do something again

I once got a script like:
gzip -dc log.gz | sed -n -e ":a" -e "$ s/>\n/>/gp;N;b a"

but it's very slow and run into out of memory

is there any better way to do achieve it?
 

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LEARN ABOUT CENTOS

dsterf.f

dsterf.f(3)							      LAPACK							       dsterf.f(3)

NAME

       dsterf.f -

SYNOPSIS

   Functions/Subroutines
       subroutine dsterf (N, D, E, INFO)
	   DSTERF

Function/Subroutine Documentation
   subroutine dsterf (integerN, double precision, dimension( * )D, double precision, dimension( * )E, integerINFO)
       DSTERF

       Purpose:

	    DSTERF computes all eigenvalues of a symmetric tridiagonal matrix
	    using the Pal-Walker-Kahan variant of the QL or QR algorithm.

       Parameters:
	   N

		     N is INTEGER
		     The order of the matrix.  N >= 0.

	   D

		     D is DOUBLE PRECISION array, dimension (N)
		     On entry, the n diagonal elements of the tridiagonal matrix.
		     On exit, if INFO = 0, the eigenvalues in ascending order.

	   E

		     E is DOUBLE PRECISION array, dimension (N-1)
		     On entry, the (n-1) subdiagonal elements of the tridiagonal
		     matrix.
		     On exit, E has been destroyed.

	   INFO

		     INFO is INTEGER
		     = 0:  successful exit
		     < 0:  if INFO = -i, the i-th argument had an illegal value
		     > 0:  the algorithm failed to find all of the eigenvalues in
			   a total of 30*N iterations; if INFO = i, then i
			   elements of E have not converged to zero.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Definition at line 87 of file dsterf.f.

Author
       Generated automatically by Doxygen for LAPACK from the source code.

Version 3.4.2							  Tue Sep 25 2012						       dsterf.f(3)
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