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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.
What else can I help you with?
Why does Linux and unix share more commands than windows xp and unix?
Because Linux evolved from UNIX, but Windows evolved from DOS.
What are Unix commands?
Commands you use in a Unix based computer OS to achieve certain things. Similar to MS/DOS commands in Windows. Mostly used in computers running the Linux OS. unix command
How do you find out what DOS Commands are available in Linux?
There is none. For starters, you have it backwards, DOS actually copied most of its commands from Unix (The rest came from CP/M.), which Linux is inspired by. Commands like "cd" and "dir" were Unix commands long before DOS even existed.
Is the architecture of Linux based on DOS?
No. Linux is a free, open-source version of UNIX. Many of DOS's commands were based on UNIX commands, but the underlying operating system is much more powerful than DOS.
Why most of the time you use Linux to execute Unix commands?
Because Linux is actually more popular in most fields these days than certified Unix.
How do you find files in Linux and Unix?
Linux and Unix and their variants have several different ways of locating files. each of the below commands can be used to locate files.findlocatewheriswhich
Every unix and Linux system contains full documentation of unix commands in the pages?
Man (or manual) pages
Is UNIX based on Linux?
No, but Linux is based on Unix since Linux is a Unix clone.
Are Linux commands entered via the command line case sensitive?
Yes. Just about everything to do with Linux on the command line is case sensitive, including commands and file names.
Where can one find information on gettimeofday?
"gettimeofday" is a command used in Linux and Unix, thus not capitalized. If one wishes to find information on it, the person should look for a manual or a list of Linux/Unix commands with definitions.
What are the various mount table enteries in unix?
This can vary depending on the Unix/Linux distribution. Your best bet is to use the 'man mount' or 'info mount' commands.
Why do you think Unix and Linux share more commands than Windows XP and Unix?
Because Linux was modeled after Unix, and designed to be a suitable free replacement. Windows is targeted at a slightly different market, and was primarily designed to be operated using a GUI, not the command line.
