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Full Discussion: Please help on IF statements.
Top Forums Shell Programming and Scripting Please help on IF statements. Post 302127401 by filthymonk on Tuesday 17th of July 2007 11:20:41 PM
Old 07-18-2007
Please help on IF statements.
I had different problem scenarios with IF statement. Can any expert please enlighten me on the difference with these scenarios. Thank you.

1st Scenario:

Code:
testdate=`date +%Y%m`
test=`cat /var/log/database0.$testdate*.log | grep "Errors found during processing" | tail -10`
if [ -z $test ]
then
        echo "No Error" >> $$.tmp
else
        echo "Error Found" >> $$.tmp
        cat /var/log/database0.$testdate*.log | grep "No files found for processing" | tail -10 >> $$.tmp
        echo " " >> $$.tmp
fi

Anyone knows why will the below error occur when i run the script above?

./test.sh: test: argument expected

2nd Scenario:

Code:
test=`cat /var/log/database0*.log | grep "Errors found during processing" | tail -10`
if [ -z $test ]
then
        echo "No Error" >> $$.tmp
else
        echo "Error Found" >> $$.tmp
        cat /var/log/database0.$testdate*.log | grep "No files found for processing" | tail -10 >> $$.tmp
        echo " " >> $$.tmp
fi

For the above code it will work.

3rd Scenario:

Code:
test=`grep error /var/log/database0*.log | tail -10`
if [ -z $test ]
then
        echo "No Error" >> $$.tmp
else
        echo "Error Found" >> $$.tmp
        cat /var/log/database0.$testdate*.log | grep "No files found for processing" | tail -10 >> $$.tmp
        echo " " >> $$.tmp
fi

The above code don't work and after i change it to the one below it works.

Code:
test=`grep error /var/log/database0*.log | tail -10`
if [ $test=" " ]
then
        echo "No Error" >> $$.tmp
else
        echo "Error Found" >> $$.tmp
        cat /var/log/database0.$testdate*.log | grep "No files found for processing" | tail -10 >> $$.tmp
        echo " " >> $$.tmp
fi

 

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LEARN ABOUT DEBIAN

test::bdd::cucumber::stepcontext

Test::BDD::Cucumber::StepContext(3pm)			User Contributed Perl Documentation		     Test::BDD::Cucumber::StepContext(3pm)

NAME

       Test::BDD::Cucumber::StepContext - Data made available to step definitions

VERSION

       version 0.11

DESCRIPTION

       The coderefs in Step Definitions have a single argument passed to them, a "Test::BDD::Cucumber::StepContext" object. This is an attribute-
       only class, populated by Test::BDD::Cucumber::Executor.

ATTRIBUTES

   data
       Step-specific data. Will either be a text string in the case of a """ string, or an arrayref of hashrefs if the step had an associated
       table.

   stash
       A hash of hashes, containing three keys, "feature", "scenario" and "step".  The stash allows you to persist data across features,
       scenarios, or steps (although the latter is there for completeness, rather than having any useful function).

   feature
   scenario
   step
       Links to the Test::BDD::Cucumber::Model::Feature, Test::BDD::Cucumber::Model::Scenario, and Test::BDD::Cucumber::Model::Step objects
       respectively.

   verb
       The lower-cased verb a Step Definition was called with.

   text
       The text of the step, minus the verb. Placeholders will have already been multiplied out at this point.

   harness
       The Test::BDD::Cucumber::Harness harness being used by the executor.

   matches
       Any matches caught by the Step Definition's regex. These are also available as $1, $2 etc as appropriate.

METHODS

   background
       Boolean for "is this step being run as part of the background section?".  Currently implemented by asking the linked Scenario object...

AUTHOR

       Peter Sergeant "pete@clueball.com"

LICENSE

       Copyright 2011, Peter Sergeant; Licensed under the same terms as Perl

perl v5.14.2							    2012-05-20				     Test::BDD::Cucumber::StepContext(3pm)
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