Here is the spectrum for ethanol:

Here is the spectrum for propan-2-ol:

Here are the tabulated peak positions ($\pu{cm^{-1}}$) and percent transmittance (%T) for the two. I've tried to match the appropriate peaks.
$$
\begin{array}{cccc}%
\hline%
\text{ethanol position} & \text{ethanol %T} & \text{propan-2-ol position} & \text{propan-2-ol %T} \\
\hline%
3358 & 12 & 3346 & 9 \\
& & 3334 & 9 \\
2974 & 13 & 2972 & 5 \\
2927 & 38 & 2933 & 19 \\
& & 2907 & 23 \\
2887 & 35 & 2884 & 20 \\
& & 2722 & 60 \\
& & 2669 & 60 \\
& & 2521 & 74 \\
& & 2408 & 79 \\
& & 2387 & 81 \\
& & 2198 & 84 \\
& & 1903 & 85 \\
& & 1766 & 84 \\
1455 & 59 & 1467 & 24 \\
& & 1409 & 29 \\
1381 & 54 & 1379 & 16 \\
& & 1368 & 17 \\
1330 & 68 & 1341 & 28 \\
1274 & 74 & 1309 & 23 \\
& & 1162 & 10 \\
1090 & 22 & 1130 & 9 \\
1050 & 7 & 1110 & 15 \\
& & \color{red}{954} & 4 \\
881 & 37 & 818 & 13 \\
669 & 67 & 660 & 37 \\
& & 654 & 37 \\
& & 490 & 66 \\
& & 436 & 68 \\
\hline%
\end{array}%
$$
One way of differentiating between the two is that I don't believe the peak at 954 wavenumbers in propan-2-ol appears in ethanol. Another better way that doesn't require looking at the fingerprint region is to see that the hydrogen-bonding peaks (the broadest ones to the left) are red-shifted in propan-2-ol compared to ethanol.