btree database access method NAME btree - btree database access method LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/types.h> #include <db.h> DESCRIPTION Note we…run in the background NAME daemon - run in the background LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int daemon(int nochdir , int noclose ); Feature Tes…perform word expansion like a posix-shell NAME wordexp, wordfree - perform word expansion like a posix-shell LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <wordexp.h>…perform word expansion like a posix-shell NAME wordexp, wordfree - perform word expansion like a posix-shell LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <wordexp.h>…execute a shell command NAME system - execute a shell command LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdlib.h> int system(const char * command ); DESCRIPTION …convert a floating-point number to a string NAME ecvt, fcvt - convert a floating-point number to a string LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdlib.h> [[d…convert a floating-point number to a string NAME ecvt, fcvt - convert a floating-point number to a string LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdlib.h> [[d…standard I/O streams NAME stdin, stdout, stderr - standard I/O streams LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdio.h> extern FILE * stdin ; extern FILE * std…standard I/O streams NAME stdin, stdout, stderr - standard I/O streams LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdio.h> extern FILE * stdin ; extern FILE * std…standard I/O streams NAME stdin, stdout, stderr - standard I/O streams LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <stdio.h> extern FILE * stdin ; extern FILE * std…get username NAME getlogin, getlogin_r, cuserid - get username LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> char *getlogin(void); int getlogin_r(char buf …get username NAME getlogin, getlogin_r, cuserid - get username LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> char *getlogin(void); int getlogin_r(char buf …get username NAME getlogin, getlogin_r, cuserid - get username LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> char *getlogin(void); int getlogin_r(char buf …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…