Daniel questions

• Will mvapich be substantially better than openmpi? And How? [closed]
• How to know which syntax highlighting is being used in vim?
• Why append a vector to another vector is not allowed here?
• What's the purpose of these redirections and file descriptors?
• Unwanted division operator behavior, what should I do?
• sed error complaining "extra characters after command" [duplicate]
• How to use unique_ptr with std::copy?
• cursor blinking removal in terminal, how to?
• How to use tar with lz4?
• How to secure read with the Bash "read" command?

Daniel answers