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How to Evaluate two conditions in single if statement

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# 1  
Old 11-23-2011
Error How to Evaluate two conditions in single if statement
I am trying to test two conditions in a single if and getting syntax error on -a and &&
Code:
if [[ $a -eq 1 && $b -eq 1]] ; then
  echo "variable a equals to variable b"
else
  echo "variable a not equal to variable b"
fi

in second attempt I used -a instead of &&, referring to other website, but not sure that mentioned for any other shell.

Whats the proper way to do it?


Moderator's Comments:
Mod Comment How to use code tags
Last edited by Franklin52; 11-23-2011 at 10:52 AM.. Reason: Please use code tags for data and code samples
# 2  
Old 11-23-2011
Try this and see if it works:
Code:
a=1
b=1
if [ ${a} -eq 1 -a ${b} -eq 1 ]
then
	echo "variable a equals to variable b"
else
	echo "variable a not equal to variable b"
fi

---------- Post updated at 13:18 ---------- Previous update was at 13:18 ----------

Also, what shell are you using?
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