A second consecutive first half brace from forward Ben Harris helped the Rebels to victory with the visitors unable to add to Toby Edser’s strike.
Slough started positively by applying pressure in the opening stages of the game, which proved decisive after Harris capitalised on a weak defensive pass from Ben Shroll before slotting in just ten minutes into proceedings.
The visitors began to settle after conceding and almost equalised shortly after the restart when Joel Nouble’s flick found Alfy Whittingham free in the box. The attacker hit a low driven shot to force a fine stop from Jack Turner in goal.
Aldershot continued to build on their possession and came close to equalising after Nouble darted inside the Slough back four before bending his effort just wide of the far-post.
But it was the hosts who took advantage of their opponent’s missed opportunities by doubling the lead. Harris latched onto a lofted ball before finding the net for his second of the game.
The Shots pulled a goal back shortly before half-time when Nouble turned provider for Edser, who made no mistake in finding the bottom corner and reducing the deficit with a first-time strike.
And the away side began the second half with intensity and nearly drew level when a scramble in the box allowed Josh Rees to poke an effort at goal from close range. Turner reacted well to block the shot before the ball was cleared for an Aldershot corner.
But the Rebels still maintained a threatening attack, and great build-up play from Harris and Paul Hodges almost saw Jack McKnight add a third. The midfielder found space before seeing his goal-bound strike deflected out of play.
Aldershot ramped up their search for an equaliser and went tantalisingly close when Bettamer’s blasted free-kick rattled the crossbar in the 70th minute.
Ross McCormack, the former Aston Villa and Leeds United frontman, replaced Bettamer and attempted an audacious effort with the outside of his right boot which was parried well by Turner.
The Rebels maintained a firm defence, and although the visitors continued to apply pressure, Slough held on to win the final pre-season friendly at Arbour Park.
Report: Daniel Lewis
Slough Town Line up
Turner, Jackman, Lomas, S Togwell, Worsfold, Trialist, Kuhl, B Harris, Bird, McKnight, Hodges. Substitutes (all used): Abbey, Lawal, Lench, Fraser.