what is posix shell ?

[Shivkumar]

Dear Sirs,

What is posix shell ? is it default shell for hpux ? how to verify this ?

Thanks,
Shiv

[Devesh Pant_1]

POSIX is the collective name of a family of related standards specified by the IEEE to define the application program interface for software designed to run on variants of the Unix OS.The Portable Operating System Interface (POSIX) standardization effort used to be run by the POSIX standards committee. During a major overhaul of the names and numbers used to refer to this project, PASC (Portable Applications Standards Committee) has now taken over most of the POSIX work. However HP has implemented the default sh shell as the posix shell in the HP UX operating system

You might want to check these links for HP UX related POSIX
http://docs.hp.com/en/B2355-90046/ch15s03.html
here is another one
http://docs.hp.com/en/B2355-90072/ch01s06.html

[Devender Khatana]

Hi Shiv,

Yes it is a shell type and is the default shell for HPUx.

From man sh
==============================================
The HP-UX operating system supports the following shells:

sh POSIX-conforming command programming language and command interpreter residing in file /usr/bin/sh.Can execute commands read from a terminal or a file. This shell conforms to current POSIX standards in effect at the time the HP-UX system release was introduced, and is similar to the Korn shell in many respects. Similar in many respects to the Korn shell, the POSIX shell contains a history mechanism, supports job control, and provides various other useful features.

"man sh" for details.

HTH,
Devender

[Mahesh Kumar Malik]

Hi Shiv

Following link may be useful on Posix shell info

http://docs.hp.com/en/B2355-90046/ch15s03.html

Regards
Mahesh