His strike took some time in coming as chances, while plentiful, were not particularly well executed in front of goal. Mounir El-Hamdaoui, Calum Davenport and Michael Carrick were the other scorers on a damp afternoon in Hampshire.
Martin split his sizeable pack for this weekend's double-header and those in attendance at the Recreation Ground were treated to a pre-season sighting of the likes of Keane, Fredi Kanoute and Carrick. For the home side it probably served to up the stakes just ahead of their own new season in the Conference.
Michael Dawson made a swift return to action following his broken nose sustained in our Peace Cup opener in South Korea and was paired alongside Davenport in what could prove to be a Spurs England under-21 pairing in the not so distant future. The under-21 theme of the side was strengthened by the selection of Tom Huddlestone and Aaron Lennon in midfield.
Huddlestone was pulling the strings early, spraying passes around with some degree of accuracy. From one, El-Hamdaoui was set clear but home goalkeeper Nikki Bull was alert to the danger of the lurking Keane - as he was when our leading pre-season goalscorer went one on one with him about a minute later.
At the other end Dawson was forced into a spot of last-ditch defending when Nick Crittenden was bearing down on Marton Fulop's goal. Dean Marney then caused a bit of mayhem on the attack by not giving up on a seemingly lost cause and squaring for Keane, whose attempted back-heel did not carry enough to trouble Bull.
Keane really could - and should - have opened the scoring on 12 minutes when a superbly measured cross from Lennon on the right fell perfectly for him to head back across the keeper and into the net. It did go back across the keeper, but was misdirected and drifted wide.
The Shots nearly seized a chance on the break when Gary Med sped away down the left flank and dispatched a useful cross which was nodded down in the direction of Michael Alexis by Neil Midgley and it looked like a shock lead could be on the cards but the finishing was wayward.
Not so at the Rec's open end where Kanoute outfoxed his marker to the right of the area and sent over a dipping cross with an invitation for El Hamdaoui to put his name on the scoresheet, which he accepted with a powerful header on 19 minutes to belatedly open the scoring.
There was nearly a second following a brilliant leave by Keane which allowed Carrick a rare burst through on goal. Not looking the most assured so high up the pitch, the England midfielder's shot was not entirely true and hit the post. Moments later Huddlestone set Keane free from defensive attention again but, again, a clear chance went begging.
Carrick then spurned another very good opportunity before Bull made a fine tip over from a El-Hamdaoui piledriver. From the resulting corner Bull was again alert to save a Dawson header, but could do nothing to prevent an unlikely scorer netting his first for the club - Davenport on 37 minutes.
Neil Midgley nearly got one back a few minutes before the break with as Aldershot rallied. They should have been buried by a scoreline resembling a healthy cricket return in an over of 20-20 - but only two it was when the referee blew for half-time.
Keane did not return to clinical mode straight after the re-start. Johnnie Jackson teed him up with a measured low cross from the left, but Robbie opted for a dink over the keeper and his cheeky effort fell wide.
Rob Burch got another taste of first team action on 51 minutes when he was called on to replace Fulop, soon followed by the introduction of Goran Bunjevcevic for Jackson. Aldershot proceeded to make a huge number of changes - some players coming back on - and the game became fragmented and lost the flow of the first half.
After the lull, Carrick pushed forward intent on shooting and his shot struck the falling Patrick Day and looped over the limited reach of sub goalkeeper Andy Glasspool to make it 3-0 on 67 minutes.
It was quickly four and finally a goal for Keane after 68 minutes. Kanoute did the graft, getting to the line and threading the ball towards Keane, who passed the ball into the net to give the scoreline a more realistic appearance.
Robbie Keane netted his fifth goal of the pre-season period as the players not involved against Reading eased to a 4-0 win over Conference side Aldershot Town.