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Full Discussion: Grep char count & pipe to sed command
Top Forums UNIX for Dummies Questions & Answers Grep char count & pipe to sed command Post 302419185 by Franklin52 on Thursday 6th of May 2010 12:21:41 PM
Old 05-06-2010
Quote:
Originally Posted by cavanac2
Now be aware, my understanding of awk is limited, so im sorry if i offend with my bad code

I tested
Code:
awk '/PBZ/{s=$0;$0=(gsub("PBZ","") RS $0)}1' FileIn

however it gave me this
3
(,CP,(((ME,,BtM),ON),((ME,((,DG),(CW9,PG11))),CW9,TS2,RT1)))

it effectivly deleted my PBZ from my files. I tried to reslove this by deleting gsub("PBZ","") but then of course it didnt work atall

how would i go about fixing this without just saying substitute PBZ with PBZ??

Code:
awk '/PBZ/{s=$0;$0=(gsub("PBZ","PBZ") RS $0)}1' FileIn

My fault, I forgot the variable s in the substitution, try this:
Code:
awk '/PBZ/{s=$0;$0=(gsub("PBZ","",s) RS $0)}1' file

 

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LEARN ABOUT DEBIAN

slaev2

slaev2.f(3)							      LAPACK							       slaev2.f(3)

NAME

       slaev2.f -

SYNOPSIS

   Functions/Subroutines
       subroutine slaev2 (A, B, C, RT1, RT2, CS1, SN1)
	   SLAEV2

Function/Subroutine Documentation
   subroutine slaev2 (realA, realB, realC, realRT1, realRT2, realCS1, realSN1)
       SLAEV2

       Purpose:

	    SLAEV2 computes the eigendecomposition of a 2-by-2 symmetric matrix
	       [  A   B  ]
	       [  B   C  ].
	    On return, RT1 is the eigenvalue of larger absolute value, RT2 is the
	    eigenvalue of smaller absolute value, and (CS1,SN1) is the unit right
	    eigenvector for RT1, giving the decomposition

	       [ CS1  SN1 ] [  A   B  ] [ CS1 -SN1 ]  =  [ RT1	0  ]
	       [-SN1  CS1 ] [  B   C  ] [ SN1  CS1 ]	 [  0  RT2 ].

       Parameters:
	   A

		     A is REAL
		     The (1,1) element of the 2-by-2 matrix.

	   B

		     B is REAL
		     The (1,2) element and the conjugate of the (2,1) element of
		     the 2-by-2 matrix.

	   C

		     C is REAL
		     The (2,2) element of the 2-by-2 matrix.

	   RT1

		     RT1 is REAL
		     The eigenvalue of larger absolute value.

	   RT2

		     RT2 is REAL
		     The eigenvalue of smaller absolute value.

	   CS1

		     CS1 is REAL

	   SN1

		     SN1 is REAL
		     The vector (CS1, SN1) is a unit right eigenvector for RT1.

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Further Details:

	     RT1 is accurate to a few ulps barring over/underflow.

	     RT2 may be inaccurate if there is massive cancellation in the
	     determinant A*C-B*B; higher precision or correctly rounded or
	     correctly truncated arithmetic would be needed to compute RT2
	     accurately in all cases.

	     CS1 and SN1 are accurate to a few ulps barring over/underflow.

	     Overflow is possible only if RT1 is within a factor of 5 of overflow.
	     Underflow is harmless if the input data is 0 or exceeds
		underflow_threshold / macheps.

       Definition at line 121 of file slaev2.f.

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

Version 3.4.1							  Sun May 26 2013						       slaev2.f(3)
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