Nested if loop


 
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# 1  
Old 01-20-2012
Nested if loop

Hi Team,

I just want to check whether my nested if loop used is correct or not.
Code:
if [[ condition1]] 
  if [[condition2]]
     export1
   else
     export2
  fi
else
  if [[condition2]]
    export3
   else
     export4
  fi
fi

Thanks
Shiva
Moderator's Comments:
Mod Comment Please use next time code tags for your code and data

Last edited by vbe; 01-20-2012 at 05:06 AM..
# 2  
Old 01-20-2012
Expecting this ..??
Code:
if [ condition1 ]; then
   export 1
elif [ conidtion2 ]; then
   export 2
elif [ condition3 ]; then
   export 3
else
   export 4
fi

This User Gave Thanks to jayan_jay For This Post:
# 3  
Old 01-20-2012
It is not a loop. The syntax is correct, except for the left-out then statements. It is a good idea to use proper indenting:

Code:
if [[ condition1]]; then
  if [[condition2]]; then
    export1
  else
    export2
  fi
else
  if [[condition2]]; then
    export3
  else
    export4
  fi
fi

The [[ .. ]] is bash/ks93 syntax. A more universal syntax is [ .. ] , but then you should make sure there is a space around the brackets:

Code:
if [ condition1 ]; then
  if [ condition2 ]; then
    export1
  else
    export2
  fi
else
  if [ condition2 ]; then
    export3
  else
    export4
  fi
fi

# 4  
Old 01-20-2012
Quote:
Originally Posted by jayan_jay
Expecting this ..??
Code:
if [ condition1 ]; then
   export 1    <<<<< i dont want this expoer it doesnot exist in code. 
elif [ conidtion2 ]; then
   export 2
elif [ condition3 ]; then
   export 3
else
   export 4
fi

My code has a if loop both in main if part and also in else part.

---------- Post updated at 04:25 AM ---------- Previous update was at 04:20 AM ----------

I used "then" in my code, but forgot to use it here.
# 5  
Old 01-20-2012
if is a conditional statement not looping !

while, for are loop statements...
This User Gave Thanks to thegeek For This Post:
# 6  
Old 01-24-2012
Code:
if [ condition 1 ]; then
  if [ condition 2 ]; then
     export 1
  else
     export 2
   fi
elif [ ~condition 1 ]; then
   if [ condition 2 ]; then
      export 3
   else 
      export 4
    fi
fi


Is my nested if statement is correct.
here "export" commands has 4 different values; so i numbered it like that.
"~ condition 1" - inverse of the condition 1

Thanks
Shiva
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