diff --git a/shell-module/HKHLR_ProTHPC_shell_Handout.pdf b/shell-module/HKHLR_ProTHPC_shell_Handout.pdf
index ccb23090a5d8d83be226dc913b5a7cadcbd96e6b..a87ff7f5691d4830af776d5c3af6843003f6dddd 100644
Binary files a/shell-module/HKHLR_ProTHPC_shell_Handout.pdf and b/shell-module/HKHLR_ProTHPC_shell_Handout.pdf differ
diff --git a/shell-module/command-reference.pdf b/shell-module/command-reference.pdf
index 6e62e6247204028976afbde7086b5f35b0aa3a3e..22fd4933b9248989c28707c4a5f6cd38d266187c 100644
Binary files a/shell-module/command-reference.pdf and b/shell-module/command-reference.pdf differ
diff --git a/shell-module/exercises.pdf b/shell-module/exercises.pdf
index 9dc18abe4f91255f998ea09909f4e0a0f5e7c1c2..250c987a90b6221b14267b3c47fb969bf79b25aa 100644
Binary files a/shell-module/exercises.pdf and b/shell-module/exercises.pdf differ