The 'ps' command may differ slightly in different versions of unix operating systems. It is usually better to use the 'man ps' command or the 'info ps' command to see the options that are available for your distribution.
Fuser is a Unix command and requires some technical knowledge to fully understand. Information on Fuser is available from Wikipedia, The Geek Stuff or may be found in specialist magazines relating to Unix.
Some examples of the Unix find command are "find . -print" or "find /-name foo". One other command could be "find /home/wpollock/foo" or "find /tmp /var/tmp. $HOME -name foo".
In some Unix and Linux systems there is a command called 'dos2unix' that will do the conversion automatically. If there isn't such a utility on your system you can use the 'tr' translate command to do the translation: tr -d '\015' < windows-file > unix-file which is essentially what dos2unix will do.
The command is 'wall' (write all). In some systems it can only be executed by the administrator.
A user may switch their identities when logged in using the 'su' command. On some systems the 'su' command may be restricted.
The ones that are listed as part of a standard (such as Posix) will work in all UNIX systems (but not all systems, such as Windows command prompt). A lot of UNIX vendors add commands that only work in their version of UNIX, so they aren't as portable across systems as others.
Yes.
The a default Unix shell is the shell that comes with and is activated initially with your distribution of Unix. The shell is essentially the program the runs the command line interface allowing someone to interact with their computer. Some examples are the Bourne-Again shell (bash) or the Bourne shell (sh).
There are various software packages that provide a Unix-like environment. They can be used for educational purposes, for scripting, connectivity and porting Unix and Linux software to Microsoft Windows systems. Some examples of these packages are: * MKS Toolkit * UnxUtils * Cygwin * Interix
TCP was developed within a Unix system - the best known was BSD version 4, containing some of the first releases of TCP protocols. As a result, I would think that all Unix systems have the same TCP/IP services available to users.
Press "alt" when you are in any Microsoft Software and some letters will pop-out this are the visual representation of a commands options.
1. Number of Users2. Task Processing3. Command-Line Interface4. Security5. PortabilityØ DOS is Single-UserØ DOS is Single Process,Ø DOS has its command interpreter (command.com).Ø Some versions of DOS allow password protection on fileØ DOS runs on Intel processors and compatible devices (8088, 8086, 286, 386, 486, Pentium).Ø UNIX is Multi-UserØ , UNIX supports multi-processing, multiple processes per user, and job control from the shellØ UNIX has the shell (C-shell, Korn Shell, Bourne Shell etc.)Ø . UNIX has username/password for logins, and user/group/world permissions on files and directories.Ø UNIX is available for a very wide variety of hardware platforms.