GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
#descendants of c2 x c2 x c2
1 #set up group presentation
c2c2c2
2
1
1
{a, b, c}
{}
0
7 #compute its 2-covering group
9 #enter p-group generation
1 #supply automorphisms
2 #number of automorphisms
1 1 0
0 1 0
0 0 1
0 0 1
1 0 0
0 1 0
0 #number of soluble automorphisms
5 #iteration option
5 #class bound
1 #all descendants?
1 #set order bound?
7 #order bound
0 #PAG-generating sequence
1 #default algorithm?
1 #default output
0 #exit
0 #exit