James Bond questions

• Is there any opensource high-performance IPC-like msg bus library in c++?
• How to write ONE line of command that scp all the sub-directories in a directory to a remote machine
• Microsecond difference between two datetime.time columns in python pandas?
• How to get the pointer to a shared_ptr?
• is there an equivalent of data-frame in OCaml?
• python pandas datetime.time - datetime.time
• Can i use boost::threadpool as a 'thread-safe queue'?
• naming convention for shell script and makefile
• awk's $1 conflicts with $1 in shell script
• how to select a subset from a std::vector or list?

James Bond answers