a/b/c/p0/m0/b0/r_a_c1_0/q a/b/c/p0/m0/b0/r_a_c1_1/q a/b/c/p0/m0/b0/r_a_c1_2/q a/b/c/p0/m0/b1/r_a_c1_0/q a/b/c/p0/m0/b1/r_a_c1_1/q a/b/c/p0/m0/b1/r_a_c1_2/q so on... I want to summarize this pattern as : a/b/c/p0/m0/b*/r_a_c1_*/q