topic Re: ulimit and ksh in Operating System - HP-UX

ulimit and ksh

Carter Jay — Wed, 28 Aug 2002 12:09:02 GMT

Hello,

I'm trying to use ulimit under ksh, with the -a option (ulimit -a), but I've got an error message. Back in sh, this works very well.
Is this normal (sh_posix != ksh) ?
Is there a tool under ksh to perform the same job.

Thanks in advance
Regards

Jerome

Re: ulimit and ksh

Ravi_8 — Wed, 28 Aug 2002 12:16:44 GMT

Hi,
ulimit will be set to unlimited in sh(posix), whereas in ksh ulimit will be set to a value.
hence the error.

Re: ulimit and ksh

Ravi_8 — Wed, 28 Aug 2002 12:17:11 GMT

Hi,
ulimit will be set to unlimited in sh(posix), whereas in ksh ulimit will be set to a value.
hence the error. there is no tool under ksh to perform the same.

Re: ulimit and ksh

Carter Jay — Wed, 28 Aug 2002 12:18:48 GMT

Hi,

here is the error message from ulimit...

# ulimit -a
ksh: ulimit: bad option(s)

Could help?

Regards

Jerome

Re: ulimit and ksh

Steve Steel — Wed, 28 Aug 2002 12:21:20 GMT

Hi

KSH is much older

For ksh 4194304 represents 'unlimited'.
The posix shell uses the characetr string 'unlimited' instead.

Steve Steel

Re: ulimit and ksh

Darrell Allen — Wed, 28 Aug 2002 12:22:30 GMT

Hi Jerome,

-a is not a valid option for ksh's built-in ulimit command.

man ksh and look for ulimit.

Darrell

Re: ulimit and ksh

James R. Ferguson — Wed, 28 Aug 2002 12:22:43 GMT

Hi Jerome:

If you look at the man pages for 'ksh' you will find that 'ulimit' is much more limited (no pun intended) than the POSIX shell version.

The POSIX shell (/sbin/sh or /usr/bin/sh) is a superset of the Korn shell (ksh). I would urge you to use the POSIX shell in lieu of the Korn one.

Whatever you choose, however, *never* change root's shell from '/sbin/sh' to anything else! Failure to heed this advice will leave you with an unbootable system.

Regards!

...JRF...