Hans Klünder questions

Hans Klünder answers

• Sum of all contiguous subarrays optimisation
• How to get unique results with grep?
• Which is the most efficient way to extract an arbitrary range of bits from a contiguous sequence of words?
• How to debug a rare deadlock?
• How do I stop variables in .bashrc being visible in the shell after sourcing?
• Interrupt sleep in bash with a signal trap