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snprintf provides a level of safety over sprintf since the caller provides a length (n) parameter that specifies the maximum number or chars to write to the buffer. For most printf-family functions, there is a variant that accepts va_list rather than a variable length parameter list. For example, there is a vfprintf, vsprintf, vsnprintf.
This is a list of commands from the GNU Core Utilities for Unix environments. These commands can be found on Unix operating systems and most Unix-like operating systems. GNU Core Utilities include basic file, shell and text manipulation utilities. Coreutils includes all of the basic command-line tools that are expected in a POSIX system.
The C programming language provides many standard library functions for file input and output.These functions make up the bulk of the C standard library header <stdio.h>. [1] The functionality descends from a "portable I/O package" written by Mike Lesk at Bell Labs in the early 1970s, [2] and officially became part of the Unix operating system in Version 7.
This is a list of POSIX (Portable Operating System Interface) commands as specified by IEEE Std 1003.1-2024, which is part of the Single UNIX Specification (SUS). These commands can be found on Unix operating systems and most Unix-like operating systems.
See the List of GNU Core Utilities commands for a brief description of included commands. Alternative implementation packages are available in the FOSS ecosystem, with a slightly different scope and focus (less functionality), or license. For example, BusyBox which is licensed under GPL-2.0-only, and Toybox which is licensed under 0BSD.
The GNU C Library, commonly known as glibc, is the GNU Project implementation of the C standard library.It provides a wrapper around the system calls of the Linux kernel and other kernels for application use.
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Info is a software utility which forms a hypertextual, multipage documentation and help viewer working on a command-line interface.. Info reads info files generated by the texinfo program and presents the documentation as a tree with simple commands to traverse the tree and to follow cross references.