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Full Discussion: SED (or other) upper to lowercase, with first letter of first word in each sentence uppercase
Top Forums Shell Programming and Scripting SED (or other) upper to lowercase, with first letter of first word in each sentence uppercase Post 302652787 by new_item on Thursday 7th of June 2012 05:53:52 PM
Old 06-07-2012
Code:
$ cat | sed 's/\./\.\n/g' | tr '[:upper:]' '[:lower:]' | sed 's/^ *//g' | perl -wp -pe '$_ = ucfirst' | tr '\n' ' '

Code:
cat | tr '[:upper:]' '[:lower:]' | sed -e 's/\./\.\n/g'  | sed -e 's/^ *//g' | sed -e 's/\(^[a-z]\)\([a-zA-Z0-9]*\)/\u\1\2/g' | tr '\n' ' '

AN UPPER RIDGE EXTENDS OVER THE W CARIBBEAN WITH THE AXIS FROM OVER CENTRAL AMERICA THROUGH THE GULF OF HONDURAS ACROSS W CUBA INTO THE W ATLC. A SECOND UPPER RIDGE EXTENDS FROM THE W TROPICAL ATLC OVER THE LESSER ANTILLES INDUCING AN INVERTED UPPER TROUGH OVER THE CARIBBEAN EXTENDING FROM THE MONA PASSAGE TO OVER COLOMBIA.
An upper ridge extends over the w caribbean with the axis from over central america through the gulf of honduras across w cuba into the w atlc. A second upper ridge extends from the w tropical atlc over the lesser antilles inducing an inverted upper trough over the caribbean extending from the mona passage to over colombia.

Code:
cat | tr '[:upper:]' '[:lower:]' | awk 'BEGIN {RS="."; ORS=". "} { {sub(".", substr(toupper($1),1,1) , $1)} print }'

AN UPPER RIDGE EXTENDS OVER THE W CARIBBEAN WITH THE AXIS FROM OVER CENTRAL AMERICA THROUGH THE GULF OF HONDURAS ACROSS W CUBA INTO THE W ATLC. A SECOND UPPER RIDGE EXTENDS FROM THE W TROPICAL ATLC OVER THE LESSER ANTILLES INDUCING AN INVERTED UPPER TROUGH OVER THE CARIBBEAN EXTENDING FROM THE MONA PASSAGE TO OVER COLOMBIA.

An upper ridge extends over the w caribbean with the axis from over central america through the gulf of honduras across w cuba into the w atlc. A second upper ridge extends from the w tropical atlc over the lesser antilles inducing an inverted upper trough over the caribbean extending from the mona passage to over colombia. .
Last edited by new_item; 06-07-2012 at 07:55 PM..
 

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LEARN ABOUT REDHAT

zlags2

ZLAGS2(l)								 )								 ZLAGS2(l)

NAME

       ZLAGS2  -  compute  2-by-2 unitary matrices U, V and Q, such that if ( UPPER ) then  U'*A*Q = U'*( A1 A2 )*Q = ( x 0 ) ( 0 A3 ) ( x x ) and
       V'*B*Q = V'*( B1 B2 )*Q = ( x 0 ) ( 0 B3 ) ( x x )  or if ( .NOT.UPPER ) then  U'*A*Q = U'*( A1 0 )*Q = ( x x ) ( A2 A3	)  (  0  x  )  and
       V'*B*Q = V'*( B1 0 )*Q = ( x x ) ( B2 B3 ) ( 0 x ) where  U = ( CSU SNU ), V = ( CSV SNV ),

SYNOPSIS

       SUBROUTINE ZLAGS2( UPPER, A1, A2, A3, B1, B2, B3, CSU, SNU, CSV, SNV, CSQ, SNQ )

	   LOGICAL	  UPPER

	   DOUBLE	  PRECISION A1, A3, B1, B3, CSQ, CSU, CSV

	   COMPLEX*16	  A2, B2, SNQ, SNU, SNV

PURPOSE

       ZLAGS2  computes  2-by-2  unitary  matrices  U, V and Q, such that if ( UPPER ) then U'*A*Q = U'*( A1 A2 )*Q = ( x 0 ) ( 0 A3 ) ( x x ) and
       V'*B*Q = V'*( B1 B2 )*Q = ( x 0 ) ( 0 B3 ) ( x x ) or if ( .NOT.UPPER ) then U'*A*Q = U'*( A1 0 )*Q = ( x x ) ( A2 A3 ) ( 0 x ) and  V'*B*Q
       = V'*( B1 0 )*Q = ( x x ) ( B2 B3 ) ( 0 x ) where U = ( CSU SNU ), V = ( CSV SNV ),	 ( -CONJG(SNU)	CSU )	   ( -CONJG(SNV) CSV )

	 Q = (	   CSQ	    SNQ )
	     ( -CONJG(SNQ)  CSQ )

       Z' denotes the conjugate transpose of Z.

       The rows of the transformed A and B are parallel. Moreover, if the input 2-by-2 matrix A is not zero, then the transformed (1,1) entry of A
       is not zero. If the input matrices A and B are both not zero, then the transformed (2,2) element of B is not zero, except  when	the  first
       rows of input A and B are parallel and the second rows are zero.

ARGUMENTS

       UPPER   (input) LOGICAL
	       = .TRUE.: the input matrices A and B are upper triangular.
	       = .FALSE.: the input matrices A and B are lower triangular.

       A1      (input) DOUBLE PRECISION
	       A2	(input) COMPLEX*16 A3	   (input) DOUBLE PRECISION On entry, A1, A2 and A3 are elements of the input 2-by-2 upper (lower)
	       triangular matrix A.

       B1      (input) DOUBLE PRECISION
	       B2      (input) COMPLEX*16 B3	  (input) DOUBLE PRECISION On entry, B1, B2 and B3 are elements of the input 2-by-2 upper  (lower)
	       triangular matrix B.

       CSU     (output) DOUBLE PRECISION
	       SNU     (output) COMPLEX*16 The desired unitary matrix U.

       CSV     (output) DOUBLE PRECISION
	       SNV     (output) COMPLEX*16 The desired unitary matrix V.

       CSQ     (output) DOUBLE PRECISION
	       SNQ     (output) COMPLEX*16 The desired unitary matrix Q.

LAPACK version 3.0						   15 June 2000 							 ZLAGS2(l)
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