if statement calling functions and improper result [duplicate]

manpreet Best Answer 2 years ago

The shell script is expected to call only one function, but calling both. How to fix this, the output is

both are same

both are not same

#!/bin/bash

var1=ORCL
var2=ORCL

function f1    
{  
    echo "both are same"
}

function f2
{
    echo "both are not same"
}

if [ $var1=$var2 ]; 
then
    f1  
fi

if [ $var1!=$var2 ]; 
then
    f2
fi

manpreet 2 years ago

spaces are required when relational operators are used in if condition

Ex:

if [ $var1 = $var2 ] ;

if [ $var1 != $var2 ] ;

Modified script

#!/bin/bash

var1=ORCL
var2=ORCL

f1()
{
echo "both are same"
}

f2()
{
echo "both are not same"
}

if [ $var1 = $var2 ];
then
        f1
fi

if [ $var1 != $var2 ];
then
        f2
fi