What are file descriptors, explained in simple terms?

What are file descriptors, explained in simple terms?

unix operating-system file-descriptor

unix

What specifically are wall-clock-time, user-cpu-time, and system-cpu-time in UNIX?

unix operating-system

unix

Spinlock versus Semaphore

c++ c linux unix operating-system

unix

Best way to find os name and version in Unix/Linux platform

linux unix operating-system version

unix

How closely are Mac OS X and BSD related?

macos unix operating-system linux-kernel kernel

unix

What is the meaning of *nix?

ruby linux unix operating-system

unix

stdout thread-safe in C on Linux?

c linux unix operating-system

unix

Time waste of execv() and fork()

linux unix operating-system multiprocessing fork

unix

Why are malloc() and printf() said as non-reentrant?

c unix operating-system reentrancy

unix

Event-driven Model in C with Sockets

c linux unix operating-system event-driven

unix

What is `S_ISREG()`, and what does it do?

c linux macos unix operating-system

unix

Difference between write() and printf()

unix io operating-system system-calls

unix

Understanding concurrent file writes from multiple processes

c unix file-io operating-system mpi

unix

Difference between HDFS and NFS? [closed]

unix hadoop mapreduce operating-system

unix

Is flock automatically released on process exit?

linux bash unix operating-system

unix