If-else is a very important coding concept. Just like other programming languages, shell script uses if-else statements to solve problems.
If
a condition is true, the algorithm performs a certain action; else
, it performs something else.
if [ condition ]
then
trueAction....
else
falseAction
fi
The following code outputs “Yes” if the two numbers are equal and “No” if they are not.
var1=50var2=60if [ $var1 == $var2 ]thenecho "YES"elseecho "NO"fi
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