Double click on the UWIN desktop icon labled Ksh so start a shell window. This will create a console window with a UNIX shell.

UWIN uses UNIX naming conventions with / meaning the UWIN_ROOT. Each drive is mounted under /. The directories on the filesystem can be accessed using /<drive_letter>. For example, /c/temp refers to the temp directory on the C drive.

The environment variable DOSPATHVARS can be set to a space separated list of names of additional variables to be converted to and from native path formats.

The directories shared using Windows are automatically mounted by UWIN. These directories can be accessed in the same way as any other hard disk on the machine is accessed.

UWIN Version 4.0 has ksh, tcsh and tclsh. ksh is the latest release of the KornShell(Ksh93). This shell is also linked to the /bin/sh.

UWIN for Windows NT comes with a telnet daemon that allows you to telnet into a workstation or server. While all the UWIN commands run over telnet, some Windows commands only produce output to the console.

On Windows NT/2000/XP, the /etc/passwd and /etc/group files are generated by the UMS service on startup based on the Windows registry. By default, only local accounts are added.

UWIN supports crontab.

Yes, but the ps command does not provide complete information for native commands.

Along with the UWIN applications, the kill command can terminate a Win32 process as well. When a UWIN process is killed from the Win32 environment, certain important clean up functions may not be performed, resulting in a possible memory leakage.

Yes, Win32 applications can be invoked from UWIN. But the application name should be in posix format the arguments must be in the format expected by the program (usually Win32 format).

UWIN support mouse based copy-paste. Selecting the text using the left mouse button can do copying and the same can be pasted by clicking the right button in a two-buttoned mouse or by clicking the middle button in a three-buttoned mouse.

The Windows clipboard can be accessed through /dev/clipboard. In addition, each time you select a region of text with the mouse from a UWIN application, the selected region is copied to the Clipboard.

Title for the ksh window, or any console window, can be changed using the shell function command /usr/fun/title.

It is possible to resize the terminal, change the colors and scroll back through the previously displayed material. The properties of the terminal window can be controlled both through the stty command and by adjusting the Windows properties of the console window.

Set the Screen Buffer Size to a larger value than the Window Size using the control panel.

Man pages can be viewed in three ways. For most commands, running command --man will generate that man page. The command man command brings up the man page using groff. This requires the groff package. The html version of man pages can be viewed using man -b command

A carriage-return/line-feed marks the end-of-line in a text file in MS-DOS text format. UNIX systems use the just the line-feed (newline) character. Most native utilities will accept either format but some require carriage-return/line-feed. Many UNIX utilities will fail if carriage-return/line-feed is used. The UWIN cat command has options -t and -T to convert to and from MS-DOS format. In addition, the UWIN provides the nocrnl utility to convert carriage-return/line-feeds to line-feeds in text files in place.

The Windows NT command processor CMD.EXE can be run from ksh, so CMD.EXE built-in commands can also be run. Assuming that PATH has been set up to include the Windows NT system directory, UWIN environment could be set to give the dir command for directory listings. For example setting the alias, alias dir='CMD.EXE /c "dir /on"', will allow the native dir command to be used in ksh.

Home directory for an user should be set through NT user manager. Absolute path should be given for the User Profile Path field of the Users profile.

The pid for an UWIN process will will be contructed from the Windows pid unless the process has been created by exec. The value is obtained by multiplying by 32 and then adding a number from 0-31.

On Windows 9X, the pid is a huge value and hence becomes negative when converted to pid_t type. UWIN has a way of mapping the actual id with the one that is returned by getpid() function.

UWIN maintains a table of subject identifier prefixes, and constructs the user id and group id by a combination of the index in this table and the last component of the subject identifier. The number of subject identifier prefixes that are likely to be encountered on a given machine is much smaller than the number of accounts so that this table is easier to maintain. The subject identifier prefix for the local system is 0 so that local accounts have small ids. The local adminstrator id is 0 and the local system account is mapped to group 1.