[SOLVED] Grub2 every if statement results in true

Grub2 every if statement results in true

I'm currently changing my grub2 menu.

I've got this if statement for testing purposes:

set var1 = "foo"
if[ "${var1}" = "bar"]; then
    default=2
fi

No matter what is written in the var1, the if statement always result in true.

set model = "foo"
if[ "${model}" = "bar"]; then
    default=2
else
    default=0
fi

If I also add an else to it, it will execute both lines.

Is it even possible to check the name of an variable in grub2?

Solution

Make sure there are spaces around the test operators [ and ].

Also remove the spaces around the assignment operator in set var1 = "foo".

Thus:

set var1="foo"
if [ "${var1}" = "bar" ] ; then
    default=2
fi

(I think the space after the ] is not necessary, but it won't hurt either.)

Presumably, instead of creating a syntax error, Grub just skips over that error to make sure it doesn't crash; although that seems odd (bad) practice. Or, in the context of your actual problem, it may stop and somehow the a result that matches your description of the comparison always evaluating to true.