root questions

root answers

• what's the chance that two git commit have same `abbrev-commit`
• Join history of older version of the same repository
• Why is assigning to an array not allowed in C? [duplicate]
• Among the many Python file copy functions, which ones are safe if the copy is interrupted?
• Colored xtrace output
• is there a qualifier to indicate a C pointer as 'given to you and should be freed by you'?
• stat(2) and EINTR