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Top Forums Shell Programming and Scripting Getting unknown operator error while using a function Post 302995831 by Scrutinizer on Thursday 13th of April 2017 12:42:00 PM
Old 04-13-2017
Quote:
Originally Posted by Aia
Quote:
CHECK1="$(Command "SELECT COUNT(*) FROM ${DATABASE}..EMPLOYEE WHERE NVL(EMPLOYEE_ID, 0) <= 0;")"
Your double quotes are not doing what's intended.
This is not correct, they are in fact doing what is intended.

Quote:
The input characters within the quoted string that are also enclosed between "$(" and the matching ')' shall not be affected by the double-quotes, but rather shall define that command whose output replaces the "$(...)" when the word is expanded. The tokenizing rules in Token Recognition , not including the alias substitutions in Alias Substitution , shall be applied recursively to find the matching ')'.
Shell Command Language: Double-Quotes

In fact, the command is equivalent to:
Code:
CHECK1=$(Command "SELECT COUNT(*) FROM ${DATABASE}..EMPLOYEE WHERE NVL(EMPLOYEE_ID, 0) <= 0;")

 

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GLOBASH(1)							 GLOBAL Utilities							GLOBASH(1)

NAME
globash - invoke a GLOBAL shell environment. SYNOPSIS
globash DESCRIPTION
globash is a bash shell enviroment that provides easy access to GLOBAL data about a project. More information about its use is available in the global.info documentation, and from globash itself at any time with the ghelp command that is available from inside it. OPTIONS
There are no options. Or blue pills. Just a simple shortcut to a bigger shell game. FILES
/etc/globash.rc - where all the real machinery lives. BUGS
As a wrapper globash gets to inherit bugs from other software too. But its hardly big enough to have many on its own. SEE ALSO
gtags(1), global(1), htmake(1), htags(1), and the global info documentation. AUTHOR
Ron Lee <ron@debian.org>, wrote this manpage, added the globash wrapper, and made a few minor tweaks to the globash.rc file which does all the real work and was written by Shigio Yamaguchi. Debian GNU/Linux 6 August 2005 GLOBASH(1)
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