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Shell Programming and Scripting
PERL: removing blank lines from multiple files
Post 302354733 by ilikecows on Saturday 19th of September 2009 02:40:49 PM
09-19-2009
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Hi All,
How do i remove continuos blank lines from a file.
I have a file with data:
abc;
def;
ghi;
jkl;
mno;
pqr;
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LEARN ABOUT DEBIAN
blaze-add
BLAZE-ADD(1) BlazeBlogger Documentation BLAZE-ADD(1) NAME
blaze-add - adds a blog post or a page to the BlazeBlogger repository SYNOPSIS
blaze-add [-pqCPV] [-b directory] [-E editor] [-a author] [-d date] [-t title] [-k keywords] [-T tags] [-u url] [file...] blaze-add -h|-v DESCRIPTION
blaze-add adds a blog post or a page to the BlazeBlogger repository. If a file is supplied, it adds the content of that file, otherwise an external text editor is opened for you. Note that there are several special forms and placeholders that can be used in the text, and that will be replaced with a proper data when the blog is generated. Special Forms <!-- break --> A mark to delimit a blog post synopsis. Placeholders %root% A relative path to the root directory of the blog. %home% A relative path to the index page of the blog. %page[id]% A relative path to a page with the supplied id. %post[id]% A relative path to a blog post with the supplied id. %tag[name]% A relative path to a tag with the supplied name. OPTIONS
-b directory, --blogdir directory Allows you to specify a directory in which the BlazeBlogger repository is placed. The default option is a current working directory. -E editor, --editor editor Allows you to specify an external text editor. When supplied, this option overrides the relevant configuration option. -t title, --title title Allows you to specify the title of a blog post or page. -a author, --author author Allows you to specify the author of a blog post or page. -d date, --date date Allows you to specify the date of publishing of a blog post or page. -k keywords, --keywords keywords Allows you to specify a comma-separated list of keywords attached to a blog post or page. -T tags, --tags tags Allows you to supply a comma-separated list of tags attached to a blog post. -u url, --url url Allows you to specify the url of a blog post or page. Allowed characters are letters, numbers, hyphens, and underscores. -p, --page, --pages Tells blaze-add to add a page or pages. -P, --post, --posts Tells blaze-add to add a blog post or blog posts. This is the default option. -C, --no-processor Disables processing a blog post or page with an external application. For example, if you use Markdown to convert the lightweight markup language to the valid HTML output, this will enable you to write this particular post in plain HTML directly. -q, --quiet Disables displaying of unnecessary messages. -V, --verbose Enables displaying of all messages. This is the default option. -h, --help Displays usage information and exits. -v, --version Displays version information and exits. ENVIRONMENT
EDITOR Unless the core.editor option is set, BlazeBlogger tries to use system-wide settings to decide which editor to use. EXAMPLE USAGE
Write a new blog post in an external text editor: ~]$ blaze-add Add a new blog post from a file: ~]$ blaze-add new_packages.txt Successfully added the post with ID 10. Write a new page in an external text editor: ~]$ blaze-add -p Write a new page in nano: ~]$ blaze-add -p -E nano SEE ALSO
blaze-init(1), blaze-config(1), blaze-edit(1), blaze-remove(1), blaze-make(1) BUGS
To report a bug or to send a patch, please, add a new issue to the bug tracker at <http://code.google.com/p/blazeblogger/issues/>, or visit the discussion group at <http://groups.google.com/group/blazeblogger/>. COPYRIGHT
Copyright (C) 2008-2011 Jaromir Hradilek This program is free software; see the source for copying conditions. It is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Version 1.2.0 2012-03-05 BLAZE-ADD(1)