Reference for unit 'BaseUnix': Procedures and functions

`CreateShellArgV`		Create a null-terminated array of strings from a command-line string
`FpAccess`		Check file access
`FpAlarm`		Schedule an alarm signal to be delivered
`FpChdir`		Change current working directory.
`FpChmod`		Change file permission bits
`FpChown`		Change owner of file
`FpClose`		Close file descriptor
`FpClosedir`		Close directory file descriptor
`FpDup`		Duplicate a file handle
`FpDup2`		Duplicate one filehandle to another
`FpExecv`		Execute process
`FpExecve`		Execute process using environment
`FpExit`		Exit the current process
`FpFcntl`		File control operations.
`fpfdfillset`		Set all filedescriptors in the set.
`fpFD_CLR`		Clears a filedescriptor in a set
`fpFD_ISSET`		Check whether a filedescriptor is set
`fpFD_SET`		Set a filedescriptor in a set
`fpFD_ZERO`		Clear all file descriptors in set
`FpFork`		Create child process
`FPFStat`		Retrieve file information about a file descriptor.
`FpFtruncate`		Truncate file on certain size.
`FpGetcwd`		Retrieve the current working directory.
`FpGetegid`		Return effective group ID
`FpGetEnv`		Return value of environment variable.
`fpgeterrno`		Retrieve extended error information.
`FpGeteuid`		Return effective user ID
`FpGetgid`		Return real group ID
`FpGetgroups`		Get the list of supplementary groups.
`FpGetpgrp`		Get process group ID
`FpGetpid`		Return current process ID
`FpGetppid`		Return parent process ID
`fpGetPriority`		Return process priority
`FpGetRLimit`		Get process resource limits
`FpGetuid`		Return current user ID
`FpIOCtl`		General kernel IOCTL call.
`FpKill`		Send a signal to a process
`FpLink`		Create a hard link to a file
`FpLseek`		Set file pointer position.
`fpLstat`		Return information about symbolic link. Do not follow the link
`FpMkdir`		Create a new directory
`FpMkfifo`		Create FIFO (named pipe) in file system
`Fpmmap`		Create memory map of a file
`Fpmunmap`		Unmap previously mapped memory block
`FpNanoSleep`		Suspend process for a short time
`fpNice`		Set process priority
`FpOpen`		Open file and return file descriptor
`FpOpendir`		Open a directory for reading
`FpPause`		Wait for a signal to arrive
`FpPipe`		Create a set of pipe file handlers
`FpPoll`		Poll a file descriptor for events.
`FppRead`		Positional read: read from file descriptor at a certain position.
`FppWrite`		Positional write: write to file descriptor at a certain position.
`FpRead`		Read data from file descriptor
`FpReaddir`		Read entry from directory
`fpReadLink`		Read destination of symbolic link
`FpReadV`		Vector read: Read into multiple buffers
`FpRename`		Rename file
`FpRmdir`		Remove a directory.
`fpSelect`		Wait for events on file descriptors
`fpseterrno`		Set extended error information.
`FpSetgid`		Set the current group ID
`fpSetPriority`		Set process priority
`FpSetRLimit`		Set process resource limits
`FpSetsid`		Create a new session.
`fpsettimeofday`		Set kernel time
`FpSetuid`		Set the current user ID
`FPSigaction`		Install signal handler
`FpSigAddSet`		Set a signal in a signal set.
`FpSigDelSet`		Remove a signal from a signal set.
`FpsigEmptySet`		Clear all signals from signal set.
`FpSigFillSet`		Set all signals in signal set.
`FpSigIsMember`		Check whether a signal appears in a signal set.
`FpSignal`		Install signal handler (deprecated)
`FpSigPending`		Return set of currently pending signals
`FpSigProcMask`		Set list of blocked signals
`FpSigSuspend`		Set signal mask and suspend process till signal is received
`FpSleep`		Suspend process for several seconds
`FpStat`		Retrieve file information about a file descriptor.
`fpSymlink`		Create a symbolic link
`fpS_ISBLK`		Is file a block device
`fpS_ISCHR`		Is file a character device
`fpS_ISDIR`		Is file a directory
`fpS_ISFIFO`		Is file a FIFO
`fpS_ISLNK`		Is file a symbolic link
`fpS_ISREG`		Is file a regular file
`fpS_ISSOCK`		Is file a unix socket
`fptime`		Return the current unix time
`FpTimes`		Return execution times for the current process
`FpUmask`		Set file creation mask.
`FpUname`		Return system name.
`FpUnlink`		Unlink (i.e. remove) a file.
`FpUtime`		Set access and modification times of a file (touch).
`FpWait`		Wait for a child to exit.
`FpWaitPid`		Wait for a process to terminate
`FpWrite`		Write data to file descriptor
`FpWriteV`		Vector write: Write from multiple buffers to a file descriptor
`FreeShellArgV`		Free the result of a CreateShellArgV function
`wexitStatus`		Extract the exit status from the fpWaitPID result.
`wifexited`		Check whether the process exited normally
`wifsignaled`		Check whether the process was exited by a signal.
`wstopsig`		Return the exit code from the process.
`wtermsig`		Return the signal that caused a process to exit.

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