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Top Forums Shell Programming and Scripting Questions on removing unexpected line breaks Post 302696353 by Nekki Basara on Tuesday 4th of September 2012 11:50:20 PM
Old 09-05-2012
Question Questions on removing unexpected line breaks

I am a newbie in Linux and I am having trouble with a piece of data on hand.
The source data is like

Code:
a|b|c|d
e|f|g
|h
i|j|k|l
m|n|o
|p
1|2|3|4
5|6|7|
8
a|b|c|d
e|f|g|h

For each line, there should be 4 fields separated by the "|", but unfortunately there are unexpected line breaks that make it a mess. Smilie
How to clean up the mess by reformating the lines to make it like

Code:
a|b|c|d
e|f|g|h
i|j|k|l
m|n|o|p
1|2|3|4
5|6|7|8
a|b|c|d
e|f|g|h

I guess it should be like checking the number of "|" in each line and if the number of "|" in a line is <3, then the line break of that line have to be removed.
But I have no idea on what should be used, say, sed?

Did someone encounter such issue before?
If so, could somone share how it could be tackled?

Thanks a lot.

Last edited by Scrutinizer; 09-05-2012 at 01:20 AM.. Reason: code tags
 

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Perl::Critic::Policy::ValuesAndExpressions::ProhibitImplUserNContributed PePerl::Critic::Policy::ValuesAndExpressions::ProhibitImplicitNewlines(3)

NAME
Perl::Critic::Policy::ValuesAndExpressions::ProhibitImplicitNewlines - Use concatenation or HEREDOCs instead of literal line breaks in strings. AFFILIATION
This Policy is part of the core Perl::Critic distribution. DESCRIPTION
Strings with embedded line breaks are hard to read. Use concatenation or HEREDOCs instead. my $foo = "Line one is quite long Line two"; # Bad my $foo = "Line one is quite long Line two"; # Better, but still hard to read my $foo = "Line one is quite long " . "Line two"; # Better still my $foo = <<'EOF'; # Use heredoc for longer passages Line one is quite long Line two Line three breaks the camel's back EOF CONFIGURATION
This Policy is not configurable except for the standard options. AUTHOR
Chris Dolan <cdolan@cpan.org> CREDITS
Initial development of this policy was supported by a grant from the Perl Foundation. COPYRIGHT
Copyright (c) 2007-2011 Chris Dolan. Many rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The full text of this license can be found in the LICENSE file included with this module. perl v5.16.3 2014-06Perl::Critic::Policy::ValuesAndExpressions::ProhibitImplicitNewlines(3)
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