echo "Enter a grade"
read grade
if test $grade="A"
then
basic=6000
elif test $grade="B"
then
basic=5000
else
basic=4000
fi
echo "Your basic is $basic"
When I execute this code in terminal with any grade it always returns "Your basic is 6000". what is the mistake in this code?
You need to put a space around the =. As it is now, you just give the test command one argument, which is $grade="A", since space separates arguments. If you put spaces around =, then test will have 3 arguments, i.e. (an expanded) $grade, = and "A".
It's also best practice to quote variable expansions to ensure empty values, whitespace, and other special characters are handled correctly.
Thus:
echo "Enter a grade"
read grade
if test "$grade" = "A"
then
basic=6000
elif test "$grade" = "B"
then
basic=5000
else
basic=4000
fi
echo "Your basic is $basic"