switch process accounting on or off NAME acct - switch process accounting on or off LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int acct(const char *_Nul…System V message queue operations NAME msgrcv, msgsnd - System V message queue operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/msg.h> int msgsnd(int msq…System V message queue operations NAME msgrcv, msgsnd - System V message queue operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/msg.h> int msgsnd(int msq…System V message queue operations NAME msgrcv, msgsnd - System V message queue operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/msg.h> int msgsnd(int msq…retrieve the physical layout of the filesystem NAME ioctl_fsmap, FS_IOC_GETFSMAP - retrieve the physical layout of the filesystem LIBRARY Standard C library ( libc , -lc ) SYNOPSIS…System V semaphore control operations NAME semctl - System V semaphore control operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/sem.h> int semctl(int sem…manipulate the kernel's key management facility NAME keyctl - manipulate the kernel's key management facility LIBRARY Standard C library ( libc , -lc ) Alternatively, Linux Key Man…System V semaphore operations NAME semop, semtimedop - System V semaphore operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/sem.h> int semop(int semid , s…System V semaphore operations NAME semop, semtimedop - System V semaphore operations LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/sem.h> int semop(int semid , s…change permissions of a file NAME chmod, fchmod, fchmodat - change permissions of a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/stat.h> int chmod(const ch…change permissions of a file NAME chmod, fchmod, fchmodat - change permissions of a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/stat.h> int chmod(const ch…change permissions of a file NAME chmod, fchmod, fchmodat - change permissions of a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <sys/stat.h> int chmod(const ch…change properties of a mount or mount tree NAME mount_setattr - change properties of a mount or mount tree LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <linux/fcntl.…execute program NAME execve - execute program LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int execve(const char * pathname , char *const _Nullable argv […change working directory NAME chdir, fchdir - change working directory LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int chdir(const char * path ); int fch…change working directory NAME chdir, fchdir - change working directory LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int chdir(const char * path ); int fch…read/write system parameters NAME sysctl - read/write system parameters SYNOPSIS #include <unistd.h> #include <linux/sysctl.h> [[deprecated]] int _sysctl(struct __sysctl_args * arg…make a new name for a file NAME link, linkat - make a new name for a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int link(const char * oldpath , con…make a new name for a file NAME link, linkat - make a new name for a file LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int link(const char * oldpath , con…request a key from the kernel's key management facility NAME request_key - request a key from the kernel's key management facility LIBRARY Linux Key Management Utilities ( libkeyut…