how to remove spaces in a string using sed. Post: 73557

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Can't remove spaces with sed when calling it from sh -c

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LEARN ABOUT DEBIAN

derivations

DERIVATIONS(7)						Derivations of Applied Mathematics					    DERIVATIONS(7)

NAME

       derivations - book: Derivations of Applied Mathematics

DESCRIPTION

       Understandably,	program sources rarely derive the mathematical formulas they use.  Not wishing to take the formulas on faith, a user might
       nevertheless reasonably wish to see such formulas somewhere derived.

       Derivations of Applied Mathematics is a book which documents and derives many of the mathematical formulas and methods implemented in  free
       software  or used in science and engineering generally.	It documents and derives the Taylor series (used to calculate trigonometrics), the
       Newton-Raphson method (used to calculate square roots), the Pythagorean theorem (used to calculate distances) and many others.

READING THE BOOK

       Among other ways, you can read the book on your computer screen by opening the file /usr/share/doc/derivations/derivations.ps.gz  with  the
       gv(1) program under X(7).  To print the book on a standard postscript printer, just zcat(1) then lpr(1) the same file.

FILES

       /usr/share/doc/derivations/derivations.ps.gz
	      the book in postscript format
       /usr/share/doc/derivations/derivations.pdf.gz
	      the book in PDF

BUGS

       The book is a work in progress.

AUTHOR

       The  book  and  this manpage are written by Thaddeus H. Black, who also maintains the Debian package derivations in which they are distrib-
       uted.  Users who need to contact the author in his role as Debian package maintainer can reach him at <thb@debian.org>.	However,  most	e-
       mail will naturally be about the book itself: this should be sent to <thb@derivations.org>.

COPYLEFT

       Copyright (C) 1983-2010 Thaddeus H. Black.

       The  book,  this manpage and the entire derivations distribution are free software.  You can redistribute them and/or modify them under the
       terms of the GNU General Public License, version 2.

SEE ALSO

       gv(1) [gv], zcat(1) [gzip], psselect(1) [psutils], lpr(1) [lpr], octave(1) [octave]

Thaddeus H. Black						   10 March 2010						    DERIVATIONS(7)

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1. Shell Programming and Scripting

Variable has spaces around the string, need to remove them

Discussion started by: mikey20

2. Shell Programming and Scripting

remove blank spaces in a string

Discussion started by: spandu

3. Shell Programming and Scripting

sed over writes my original file (using sed to remove leading spaces)

Discussion started by: laser

4. Shell Programming and Scripting

sed - remove spaces before 1rst occurence of string

Discussion started by: danmauer