.xx "intro" "introduction to system calls"
.xx "break, brk, sbrk" "change core allocation"
.xx "chdir" "change working directory"
.xx "chmod" "change mode of file"
.xx "chown" "change owner and group of a file"
.xx "close" "close a file"
.xx "creat" "create a new file"
.xx "csw" "read console switches"
.xx "dup" "duplicate an open file descriptor"
.xx "exec, execl, execv" "execute a file"
.xx "exit" "terminate process"
.xx "fork" "spawn new process"
.xx "fstat" "get status of open file"
.xx "getgid" "get group identifications"
.xx "getpid" "get process identification"
.xx "getuid" "get user identifications"
.xx "gprocs" "get system process information"
.xx "gtty" "get typewriter status"
.xx "indir" "indirect system call"
.xx "kill" "send signal to a process"
.xx "link" "link to a file"
.xx "mknod" "make a directory or a special file"
.xx "mount" "mount file system"
.xx "nice" "set program priority"
.xx "open" "open for reading or writing"
.xx "pipe" "create an interprocess channel"
.xx "profil" "execution time profile"
.xx "ptrace" "process trace"
.xx "read" "read from file"
.xx "rtclose" "close RT-11 file"
.xx "rtdelete" "delete RT-11 file"
.xx "rtmount" "mount RT-11 file structured device"
.xx "rtopen" "open RT-11 file for reading, writing or updating"
.xx "rtread" "read from RT-11 file"
.xx "rtumount" "dismount RT-11 file structured device"
.xx "rtwrite" "write on RT-11 file"
.xx "seek, lseek" "move read/write pointer"
.xx "setgid" "set process group ID"
.xx "setuid" "set process user ID"
.xx "signal" "catch or ignore signals"
.xx "sleep" "stop execution for interval"
.xx "stat" "get file status"
.xx "stime" "set time"
.xx "stty" "set mode of typewriter"
.xx "sync" "update super-block"
.xx "time" "get date and time"
.xx "times" "get process times"
.xx "tlimit" "set process time limit"
.xx "umount" "dismount file system"
.xx "unlink" "remove directory entry"
.xx "wait" "wait for process to terminate"
.xx "write" "write on a file"
