V4/usr/man/man0/tocx2

.xx "break" "set program break"
.xx "chdir" "change working directory"
.xx "chmod" "change mode of file"
.xx "chown" "change owner"
.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" "execute a file"
.xx "exit" "terminate process"
.xx "fork" "spawn new process"
.xx "fstat" "get status of open file"
.xx "getgid" "get group identification"
.xx "getuid" "get user identification"
.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 a pipe"
.xx "read" "read from file"
.xx "seek" "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 "umount" "dismount file system"
.xx "unlink" "remove directory entry"
.xx "wait" "wait for process to die"
.xx "write" "write on a file"