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Top Forums Shell Programming and Scripting Merge multiple lines into a single line Post 303000133 by Don Cragun on Tuesday 4th of July 2017 07:26:31 PM
Old 07-04-2017
Quote:
Originally Posted by RudiC
You seem not to have any <line feed> chars in your file except in the very end. So mayhap the condition you quoted in post#1 - empty line between records - can't be met with non- *nix files. Is that a MAC file?
We haven't seen enough information to determine whether or not there are <newline> (or <linefeed>) characters in the input file. Using RS= in awk to set the record separator to sequences of blank lines will not treat a line containing a <carriage-return> as a blank line. So, awk won't find any record separators in a DOS input file. (And, if you remove the <carriage-return> characters in the code that will happen AFTER the record separator search has already occurred.)

I would start by trying:
Code:
awk '
function p() {
	if(d) {
		sub(/;$/, "", o)
		print o
		o = ""
		d = 0
	}
}
{	sub(/\r/, "")
}
!NF {	p()
	next
}
{	$1 = $1
	o = o (o == "" ? "" : " ") $0
	d = 1
}
END {	p()
}' file

If that doesn't work, please show us the output from:
Code:
od -bc file

where file is the name of your input file.
This User Gave Thanks to Don Cragun For This Post:
 

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fmt(1)							      General Commands Manual							    fmt(1)

NAME
fmt - format text SYNOPSIS
width] [file...] DESCRIPTION
The command is a simple text formatter that fills and joins lines to produce output lines of (up to) the number of characters specified in the width option. The default width is 72. concatenates the arguments. If none are given, formats text from the standard input. Blank lines are preserved in the output, as is the spacing between words. does not fill lines beginning with a period for compatibility with Nor does it fill lines starting with Indentation is preserved in the output and input lines with differing indentation are not joined (unless is used). can also be used as an in-line text filter for the command: reformats the text between the cursor location and the end of the paragraph. Options recognizes the following options: Crown margin mode. Preserve the indentation of the first two lines within a paragraph and align the left margin of each subsequent line with that of the second line. This is useful for tagged paragraphs. Split lines only. Do not join short lines to form longer ones. This prevents sample lines of code, and other such "formatted" text, from being unduly combined. Fill output lines to up to width columns. WARNINGS
The width option is acceptable for BSD compatibility, but it may go away in future releases. SEE ALSO
nroff(1), vi(1). fmt(1)
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