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Top Forums Shell Programming and Scripting Bash variable assignment failure/unary operator expected Post 303012615 by Chubler_XL on Tuesday 6th of February 2018 05:13:58 PM
Old 02-06-2018
Quote:
Originally Posted by port43
I have a little code block (executing on AIX 7.1) that I cannot understand why the NOTFREE=0 does not appear to be assigned even though it goes through that block. This causes a unary operator issue.
As others have stated the while loop is run in a subshell and variable assignments are lost the general accepted solution is to use Process Substitution eg:

Code:
    while read VGNAME
    do
        PPSTRG=$(lsvg ${VGNAME} | awk -F: '/PP SIZE/ {print $NF}')
        ...
    done < <(lsvg | grep -v rootvg)
    ...

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DROP 
OPERATOR(7) SQL Commands DROP OPERATOR(7) NAME
DROP OPERATOR - remove an operator SYNOPSIS
DROP OPERATOR [ IF EXISTS ] name ( { lefttype | NONE } , { righttype | NONE } ) [ CASCADE | RESTRICT ] DESCRIPTION
DROP OPERATOR drops an existing operator from the database system. To execute this command you must be the owner of the operator. PARAMETERS
IF EXISTS Do not throw an error if the operator does not exist. A notice is issued in this case. name The name (optionally schema-qualified) of an existing operator. lefttype The data type of the operator's left operand; write NONE if the operator has no left operand. righttype The data type of the operator's right operand; write NONE if the operator has no right operand. CASCADE Automatically drop objects that depend on the operator. RESTRICT Refuse to drop the operator if any objects depend on it. This is the default. EXAMPLES
Remove the power operator a^b for type integer: DROP OPERATOR ^ (integer, integer); Remove the left unary bitwise complement operator ~b for type bit: DROP OPERATOR ~ (none, bit); Remove the right unary factorial operator x! for type bigint: DROP OPERATOR ! (bigint, none); COMPATIBILITY
There is no DROP OPERATOR statement in the SQL standard. SEE ALSO
CREATE OPERATOR [create_operator(7)], ALTER OPERATOR [alter_operator(7)] SQL - Language Statements 2010-05-14 DROP OPERATOR(7)
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