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Top Forums Shell Programming and Scripting Grep string causes extra spaces Post 303035187 by RudiC on Thursday 16th of May 2019 09:34:47 AM
Old 05-16-2019
It doesn't print "extra" spaces, but the two leading spaces in the "id" line, which you do not remove with your sed command. Try again piping through
Code:
sed -e 's/^ *<id=\"\(.*\)\">/\1/'

, i.e. include the spaces from line start...
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GOFMT(1)						      General Commands Manual							  GOFMT(1)

NAME
gofmt - formats Go programs SYNOPSIS
gofmt [flags] [ path ... ] DESCRIPTION
Without an explicit path, it processes the standard input. Given a file, it operates on that file; given a directory, it operates on all .go files in that directory, recursively. (Files starting with a period are ignored.) By default, gofmt prints the reformatted sources to standard output. OPTIONS
-d Do not print reformatted sources to standard output. If a file's formatting is different than gofmt's, print diffs to standard out- put. -e Print all (including spurious) errors. -l Do not print reformatted sources to standard output. If a file's formatting is different from gofmt's, print its name to standard output. -r rule Apply the rewrite rule to the source before reformatting. -s Try to simplify code (after applying the rewrite rule, if any). -w Do not print reformatted sources to standard output. If a file's formatting is different from gofmt's, overwrite it with gofmt's version. Formatting control flags: -comments=true Print comments; if false, all comments are elided from the output. -tabs=true Indent with tabs; if false, spaces are used instead. -tabwidth=8 Tab width in spaces. The rewrite rule specified with the -r flag must be a string of the form: pattern -> replacement Both pattern and replacement must be valid Go expressions. In the pattern, single-character lowercase identifiers serve as wildcards match- ing arbitrary sub-expressions; those expressions will be substituted for the same identifiers in the replacement. When gofmt reads from standard input, it accepts either a full Go program or a program fragment. A program fragment must be a syntactically valid declaration list, statement list, or expression. When formatting such a fragment, gofmt preserves leading indentation as well as leading and trailing spaces, so that individual sections of a Go program can be formatted by piping them through gofmt. EXAMPLES
To check files for unnecessary parentheses: gofmt -r '(a) -> a' -l *.go To remove the parentheses: gofmt -r '(a) -> a' -w *.go To convert the package tree from explicit slice upper bounds to implicit ones: gofmt -r 'a[B:len(a)] -> a[B:]' -w $GOROOT/src/pkg BUGS
The implementation of -r is a bit slow. AUTHOR
This manual page was written by Michael Stapelberg <stapelberg@debian.org>, for the Debian project (and may be used by others). 2012-05-13 GOFMT(1)
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