File Descriptors
Everything on SkillVeris tagged File Descriptors — collected across the glossary, study notes, blog, and cheat sheets.
4 resources across 1 library
Interview Questions(4)
What Does the exec() Family of System Calls Do?
exec() replaces the calling process’s memory image — code, data, stack, and heap — with a new program loaded from disk, keeping the same process ID while compl…
What are Pipes in Operating Systems?
A pipe is a unidirectional, kernel-buffered byte stream that connects the standard output of one process directly to the standard input of another, letting rel…
What is a File Descriptor Table?
A file descriptor table is a per-process array maintained by the kernel that maps small integers (file descriptors), which a process uses in system calls, to e…
What is the Open File Table?
The open file table is a kernel-wide (system-wide) structure of entries, each tracking the current file offset, access mode, and status flags for one open() ca…