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Full Discussion: Awk numeric range match only one digit?
Top Forums Shell Programming and Scripting Awk numeric range match only one digit? Post 302569806 by Corona688 on Tuesday 1st of November 2011 03:38:28 PM
Old 11-01-2011
Try comparing $2 as a number, not a regex.

Code:
awk 'BEGIN { MIN=1; MAX=9; }
($2 >= MIN) && ($2 <= MAX)'

The { print $0 } is redundant if all you want is print $0. That's what happens by default given no code block.

---------- Post updated at 01:38 PM ---------- Previous update was at 01:36 PM ----------

Also, if you have -v, that's a safer and simpler way to get variables into awk:

Code:
awk -v MIN=1 -v MAX=9 '($2 >= MIN)&&($2 <= MAX)'

 

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LEARN ABOUT DEBIAN

cgeqrt.f

cgeqrt.f(3)							      LAPACK							       cgeqrt.f(3)

NAME

       cgeqrt.f -

SYNOPSIS

   Functions/Subroutines
       subroutine cgeqrt (M, N, NB, A, LDA, T, LDT, WORK, INFO)
	   CGEQRT

Function/Subroutine Documentation
   subroutine cgeqrt (integerM, integerN, integerNB, complex, dimension( lda, * )A, integerLDA, complex, dimension( ldt, * )T, integerLDT,
       complex, dimension( * )WORK, integerINFO)
       CGEQRT

       Purpose:

	    CGEQRT computes a blocked QR factorization of a complex M-by-N matrix A
	    using the compact WY representation of Q.

       Parameters:
	   M

		     M is INTEGER
		     The number of rows of the matrix A.  M >= 0.

	   N

		     N is INTEGER
		     The number of columns of the matrix A.  N >= 0.

	   NB

		     NB is INTEGER
		     The block size to be used in the blocked QR.  MIN(M,N) >= NB >= 1.

	   A

		     A is COMPLEX array, dimension (LDA,N)
		     On entry, the M-by-N matrix A.
		     On exit, the elements on and above the diagonal of the array
		     contain the min(M,N)-by-N upper trapezoidal matrix R (R is
		     upper triangular if M >= N); the elements below the diagonal
		     are the columns of V.

	   LDA

		     LDA is INTEGER
		     The leading dimension of the array A.  LDA >= max(1,M).

	   T

		     T is COMPLEX array, dimension (LDT,MIN(M,N))
		     The upper triangular block reflectors stored in compact form
		     as a sequence of upper triangular blocks.	See below
		     for further details.

	   LDT

		     LDT is INTEGER
		     The leading dimension of the array T.  LDT >= NB.

	   WORK

		     WORK is COMPLEX array, dimension (NB*N)

	   INFO

		     INFO is INTEGER
		     = 0:  successful exit
		     < 0:  if INFO = -i, the i-th argument had an illegal value

       Author:
	   Univ. of Tennessee

	   Univ. of California Berkeley

	   Univ. of Colorado Denver

	   NAG Ltd.

       Date:
	   November 2011

       Further Details:

	     The matrix V stores the elementary reflectors H(i) in the i-th column
	     below the diagonal. For example, if M=5 and N=3, the matrix V is

			  V = (  1	 )
			      ( v1  1	 )
			      ( v1 v2  1 )
			      ( v1 v2 v3 )
			      ( v1 v2 v3 )

	     where the vi's represent the vectors which define H(i), which are returned
	     in the matrix A.  The 1's along the diagonal of V are not stored in A.

	     Let K=MIN(M,N).  The number of blocks is B = ceiling(K/NB), where each
	     block is of order NB except for the last block, which is of order
	     IB = K - (B-1)*NB.  For each of the B blocks, a upper triangular block
	     reflector factor is computed: T1, T2, ..., TB.  The NB-by-NB (and IB-by-IB
	     for the last block) T's are stored in the NB-by-N matrix T as

			  T = (T1 T2 ... TB).

       Definition at line 142 of file cgeqrt.f.

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

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