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Full Discussion: problem in -->df command monitoring script
Top Forums Shell Programming and Scripting problem in -->df command monitoring script Post 302600065 by aish11 on Monday 20th of February 2012 03:58:31 AM
Old 02-20-2012
problem in -->df command monitoring script
Hi All,

I am creating df monitoring script. but facing some below problm.

Please see the below code.

Code:
 
df_threshold=90;
for i in `cat df_fnl.txt`
do
if [ $(echo "$i > $df_threshold"|bc) -eq 1 ] ; then
echo "%df is more than $df_threshold "
fi
done



and df_fnl.txt contains the data....
Code:
 
50%
5%
Use%
1%
11%


but it giving me the below error-

Code:
./df.sh: line 17: [: -eq: unary operator expected
(standard_in) 1: syntax error
./df.sh: line 17: [: -eq: unary operator expected
(standard_in) 1: illegal character: U
(standard_in) 1: syntax error
./df.sh: line 17: [: -eq: unary operator expected
(standard_in) 1: syntax error
./df.sh: line 17: [: -eq: unary operator expected
(standard_in) 1: syntax error
./df.sh: line 17: [: -eq: unary operator expected

Please help me to solve the above error .

and how can i remove % symbol from df_fnl.txt file.

so that it will be easier me to compair the values.


Thanks
 

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LEARN ABOUT REDHAT

drop_operator

DROP 
OPERATOR(7)						   SQL Commands 						  DROP OPERATOR(7)

NAME

       DROP OPERATOR - remove a user-defined operator

SYNOPSIS

       DROP OPERATOR id ( lefttype | NONE , righttype | NONE ) [ CASCADE | RESTRICT ]

   INPUTS
       id     The identifier (optionally schema-qualified) of an existing operator.

       lefttype
	      The type of the operator's left argument; write NONE if the operator has no left argument.

       righttype
	      The type of the operator's right argument; write NONE if the operator has no right argument.

       CASCADE
	      Automatically drop objects that depend on the operator.

       RESTRICT
	      Refuse to drop the operator if there are any dependent objects.  This is the default.

   OUTPUTS
       DROP OPERATOR
	      The message returned if the command is successful.

       ERROR: RemoveOperator: binary operator 'oper' taking 'lefttype' and 'righttype' does not exist
	      This message occurs if the specified binary operator does not exist.

       ERROR: RemoveOperator: left unary operator 'oper' taking 'lefttype' does not exist
	      This message occurs if the left unary operator specified does not exist.

       ERROR: RemoveOperator: right unary operator 'oper' taking 'righttype' does not exist
	      This message occurs if the right unary operator specified does not exist.

DESCRIPTION

       DROP OPERATOR drops an existing operator from the database.  To execute this command you must be the owner of the operator.

       The left or right type of a left or right unary operator, respectively, must be specified as NONE.

   NOTES
       The DROP OPERATOR statement is a PostgreSQL language extension.

       Refer to CREATE OPERATOR [create_operator(7)] for information on how to create operators.

USAGE

       Remove power operator a^n for int4:

       DROP OPERATOR ^ (int4, int4);

       Remove left unary negation operator (! b) for boolean:

       DROP OPERATOR ! (none, bool);

       Remove right unary factorial operator (i !) for int4:

       DROP OPERATOR ! (int4, none);

COMPATIBILITY

   SQL92
       There is no DROP OPERATOR in SQL92.

SQL - Language Statements					    2002-11-22							  DROP OPERATOR(7)
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