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Top Forums Shell Programming and Scripting shell script - unexpected result Post 302549107 by Corona688 on Sunday 21st of August 2011 01:44:02 PM
Old 08-21-2011
useless use of grep | awk -- awk can handle searching for DSQUERY itself. Also useless use of backticks, the latter of which can actually be dangerous -- that splits on whitespace, not just lines, for one thing. It may truncate a list that ends up too long for a shell variable to hold too.

Code:
awk -F: '/'${DSQUERY}'/ { print $3 }' | while read LINE
do
...
done

Side-effect of the pipe means variables set inside the while loop may not be visible outside it. To avoid this you can send the output into a temp file, then read the temp file like done < /path/to/file
 

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URI::URL(3)						User Contributed Perl Documentation					       URI::URL(3)

NAME
URI::URL - Uniform Resource Locators SYNOPSIS
$u1 = URI::URL->new($str, $base); $u2 = $u1->abs; DESCRIPTION
This module is provided for backwards compatibility with modules that depend on the interface provided by the "URI::URL" class that used to be distributed with the libwww-perl library. The following differences exist compared to the "URI" class interface: o The URI::URL module exports the url() function as an alternate constructor interface. o The constructor takes an optional $base argument. The "URI::URL" class is a subclass of "URI::WithBase". o The URI::URL->newlocal class method is the same as URI::file->new_abs. o URI::URL::strict(1) o $url->print_on method o $url->crack method o $url->full_path: same as ($uri->abs_path || "/") o $url->netloc: same as $uri->authority o $url->epath, $url->equery: same as $uri->path, $uri->query o $url->path and $url->query pass unescaped strings. o $url->path_components: same as $uri->path_segments (if you don't consider path segment parameters) o $url->params and $url->eparams methods o $url->base method. See URI::WithBase. o $url->abs and $url->rel have an optional $base argument. See URI::WithBase. o $url->frag: same as $uri->fragment o $url->keywords: same as $uri->query_keywords o $url->localpath and friends map to $uri->file. o $url->address and $url->encoded822addr: same as $uri->to for mailto URI o $url->groupart method for news URI o $url->article: same as $uri->message SEE ALSO
URI, URI::WithBase COPYRIGHT
Copyright 1998-2000 Gisle Aas. perl v5.16.3 2012-02-11 URI::URL(3)
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