Frm::Exe@flush_procs is executed in flush();
Buffer/ server function is splitted off from recv_proc() as server(), recv_proc() sets @recv_proc only;
add var_proc.txt (proc list);
rename lib*sh -> lib*exe;
rename ins* -> dev*;
add 'w' and 'j' option, set layer to $layer as option 'a,f,w,x';
option 'j' shows json string at to_s;
add exe() for execute only command;
option 'j' works on initial output mode;
add devexe for exec only;