Compare the two variable with if condition

Shell Programming and Scripting
1

Please help me with this:

I need to compare two values in if condition in shell script but its goes always to else condition:

TIME_CHECK=PM
TIME-CLOCK=PM

if [ $TIME_CHECK -eq $TIME-CLOCK ]; then
        echo "You have access!"
else
        echo "ACCESS DENIED!"
fi
2

Try this:

TIME_CHECK="PM"
TIME-CLOCK="PM"

if [ $TIME_CHECK = $TIME-CLOCK ]; then
        echo "You have access!"
else
        echo "ACCESS DENIED!"
fi

or this:

TIME_CHECK=PM
TIME-CLOCK=PM

if [ $TIME_CHECK = $TIME-CLOCK ]; then
        echo "You have access!"
else
        echo "ACCESS DENIED!"
fi
3

This is what i am doing:

TIME_DATE_SPLIT=`date +%Y-%m-%d-%p`

TIME_CHECK="`(echo $TIME_DATE_SPLIT | cut -d "-" -f 4)`"

TIME_CLOCK="AM"

if [ $TIME_CHECK -eq $TIME_CLOCK ]; then
    echo "You have access!"
else
    echo "ACCESS DENIED!"
fi

This always goes in else condition if AM or PM and gives the error "[: AM: integer expression expected"

Please help

4

See what you are doing is storing the results of TIME_DATE_SPLIT and TIME_CHECK as strings. The "-eq" expression only works with integers so replace that with "=" and it should work.

5

You can get the AM/PM directly from the date command.

TIME_CHECK="`date +%p`" # AM or PM

TIME_CLOCK="AM"

if [ "${TIME_CHECK}" = "${TIME_CLOCK}" ]; then
    echo "You have access!"
else
    echo "ACCESS DENIED!"
fi
6 
TIME_DATE_SPLIT=`date +%Y-%m-%d-%p`

TIME_CHECK="`(echo $TIME_DATE_SPLIT | cut -d "-" -f 4)`"

#######FUNCTION START########
PREVIOUS_DATE_FUNCTION()
{

date '+%m %d %Y' | 
{ 
read MONTH DAY YEAR
DAY=`expr "$DAY" - 1` 
case "$DAY" in 
        0) 
           MONTH=`expr "$MONTH" - 1` 
                case "$MONTH" in 
                        0) 
                           MONTH=12 
                           YEAR=`expr "$YEAR" - 1` 
                        ;; 
                esac 
        DAY=`cal $MONTH $YEAR | grep . | fmt -1 | tail -1` 
esac 
    PREVIOUS_TEMP_DATE=$YEAR-$MONTH-$DAY
    echo $PREVIOUS_TEMP_DATE
}

}
#######FUNCTION END########
TIME_CLOCK="AM"

if [ $TIME_CHECK = $TIME_CLOCK ]; then
    
PREVIOUSDATE="`PREVIOUS_DATE_FUNCTION`"   #FUNCTION CALL#
   
tempfile=CANCEL_FILE_$PREVIOUSDATE_AM

Problem here is that $PREVIOUSDATE value is null.I am not getting the tempfile=CANCEL_FILE_27-06-2012_AM
I am getting

tempfile=CANCEL_FILE__AM