database access methods NAME dbopen - database access methods LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/types.h> #include <limits.h> #include <db.h> #include…database access methods NAME dbopen - database access methods LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/types.h> #include <limits.h> #include <db.h> #include…read and/or clear kernel message ring buffer; set console_loglevel NAME syslog, klogctl - read and/or clear kernel message ring buffer; set console_loglevel LIBRARY Standard C libr…send a message to a message queue NAME mq_send, mq_timedsend - send a message to a message queue LIBRARY Real-time library ( librt , -lrt ) SYNOPSIS #include <mqueue.h> int mq_send…send a message to a message queue NAME mq_send, mq_timedsend - send a message to a message queue LIBRARY Real-time library ( librt , -lrt ) SYNOPSIS #include <mqueue.h> int mq_send…close a named semaphore NAME sem_close - close a named semaphore LIBRARY POSIX threads library ( libpthread , -lpthread ) SYNOPSIS #include <semaphore.h> int sem_close(sem_t * sem …close a message queue descriptor NAME mq_close - close a message queue descriptor LIBRARY Real-time library ( librt , -lrt ) SYNOPSIS #include <mqueue.h> int mq_close(mqd_t mqdes )…deallocate descriptor for character set conversion NAME iconv_close - deallocate descriptor for character set conversion LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include…input string format conversion NAME sscanf, vsscanf - input string format conversion LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdio.h> int sscanf(const char *re…input string format conversion NAME sscanf, vsscanf - input string format conversion LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdio.h> int sscanf(const char *re…map or unmap files or devices into memory NAME mmap, munmap - map or unmap files or devices into memory LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/mman.h> voi…close a stream NAME fclose - close a stream LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdio.h> int fclose(FILE * stream ); DESCRIPTION The fclose () function flu…execute program specified via file descriptor NAME fexecve - execute program specified via file descriptor LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> in…open a custom stream NAME fopencookie - open a custom stream LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #define _GNU_SOURCE /* See feature_test_macros(7) */ #define _FILE_O…close all open streams NAME fcloseall - close all open streams LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #define _GNU_SOURCE /* See feature_test_macros(7) */ #include <std…close a directory NAME closedir - close a directory LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/types.h> #include <dirent.h> int closedir(DIR * dirp ); DESCRIP…traverse a file hierarchy NAME fts, fts_open, fts_read, fts_children, fts_set, fts_close - traverse a file hierarchy LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sy…open a directory NAME opendir, fdopendir - open a directory LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/types.h> #include <dirent.h> DIR *opendir(const char * …open a directory NAME opendir, fdopendir - open a directory LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/types.h> #include <dirent.h> DIR *opendir(const char * …complex square root NAME csqrt, csqrtf, csqrtl - complex square root LIBRARY Math library ( libm , -lm ) SYNOPSIS #include <complex.h> double complex csqrt(double complex z ); floa…