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…predeclare an access pattern for file data NAME posix_fadvise - predeclare an access pattern for file data LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fcntl.h> int…predeclare an access pattern for file data NAME posix_fadvise - predeclare an access pattern for file data LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fcntl.h> int…predeclare an access pattern for file data NAME posix_fadvise - predeclare an access pattern for file data LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fcntl.h> int…predeclare an access pattern for file data NAME posix_fadvise - predeclare an access pattern for file data LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fcntl.h> int…predeclare an access pattern for file data NAME posix_fadvise - predeclare an access pattern for file data LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <fcntl.h> int…set user identity NAME setuid - set user identity LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int setuid(uid_t uid ); DESCRIPTION setuid () sets the effe…set user identity NAME setuid - set user identity LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int setuid(uid_t uid ); DESCRIPTION setuid () sets the effe…operations on a process or thread NAME prctl - operations on a process or thread LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <linux/prctl.h> /* Definition of PR_* c…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…set group identity NAME setgid - set group identity LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int setgid(gid_t gid ); DESCRIPTION setgid () sets the ef…set group identity NAME setgid - set group identity LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> int setgid(gid_t gid ); DESCRIPTION setgid () sets the ef…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…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…get/set list of supplementary group IDs NAME getgroups, setgroups - get/set list of supplementary group IDs LIBRARY Standard C library ( libc , -lc ) SYNOPSIS #include <unistd.h> i…