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Top Forums Shell Programming and Scripting Help with delete "_" once detected from the end of a content Post 302595340 by perl_beginner on Thursday 2nd of February 2012 09:28:37 PM
Old 02-02-2012
Help with delete "_" once detected from the end of a content

Input file:
Code:
matrix-remodelling_associated_8____
aurora_interacting_1___
L20
von_factor_A_domain_1
ATP_containing_3B_

Desired output:
Code:
matrix-remodelling_associated_8
aurora_interacting_1
L20
von_factor_A_domain_1
ATP_containing_3B

I wanna delete/remove all the "_" that appears at the end of a content.
Command I try:
Code:
sed 's/_$//g' input_file.txt 
matrix-remodelling_associated_8___
aurora_interacting_1__
L20
von_factor_A_domain_1
ATP_containing_3B

It don't really give my desired output result.
Many thanks for advice.
 

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dlag2s.f(3)							      LAPACK							       dlag2s.f(3)

NAME
dlag2s.f - SYNOPSIS
Functions/Subroutines subroutine dlag2s (M, N, A, LDA, SA, LDSA, INFO) DLAG2S converts a double precision matrix to a single precision matrix. Function/Subroutine Documentation subroutine dlag2s (integerM, integerN, double precision, dimension( lda, * )A, integerLDA, real, dimension( ldsa, * )SA, integerLDSA, integerINFO) DLAG2S converts a double precision matrix to a single precision matrix. Purpose: DLAG2S converts a DOUBLE PRECISION matrix, SA, to a SINGLE PRECISION matrix, A. RMAX is the overflow for the SINGLE PRECISION arithmetic DLAG2S checks that all the entries of A are between -RMAX and RMAX. If not the convertion is aborted and a flag is raised. This is an auxiliary routine so there is no argument checking. Parameters: M M is INTEGER The number of lines of the matrix A. M >= 0. N N is INTEGER The number of columns of the matrix A. N >= 0. A A is DOUBLE PRECISION array, dimension (LDA,N) On entry, the M-by-N coefficient matrix A. LDA LDA is INTEGER The leading dimension of the array A. LDA >= max(1,M). SA SA is REAL array, dimension (LDSA,N) On exit, if INFO=0, the M-by-N coefficient matrix SA; if INFO>0, the content of SA is unspecified. LDSA LDSA is INTEGER The leading dimension of the array SA. LDSA >= max(1,M). INFO INFO is INTEGER = 0: successful exit. = 1: an entry of the matrix A is greater than the SINGLE PRECISION overflow threshold, in this case, the content of SA in exit is unspecified. Author: Univ. of Tennessee Univ. of California Berkeley Univ. of Colorado Denver NAG Ltd. Date: September 2012 Definition at line 109 of file dlag2s.f. Author Generated automatically by Doxygen for LAPACK from the source code. Version 3.4.2 Tue Sep 25 2012 dlag2s.f(3)
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