topic Re: Posix shell : login name in prompt in Operating System - HP-UX

Posix shell : login name in prompt

BORTZMEYER — Thu, 31 Oct 2002 11:34:11 GMT

Hi !
I wants 2 display my login name in the Posix shell prompt :

jack$ id -un
jack
jack$ su joe
joe$ exit
jack$

With Solaris, AIX, Dynix/ptx, Linux (with korn shell, bash has \u), it can b done with :

export ENV=$HOME/.shrc

in $HOME/.shrc :
export PS1=`id -un`"$ "

With HP-UX, as mentioned in su(1), the ENV environment variable is removed. So it can't work !

Any workaround ?

Re: Posix shell : login name in prompt

Christian Gebhardt — Thu, 31 Oct 2002 11:43:21 GMT

Hi
Try this in your ~/.profile
export PS1="[$(whoami)] $(hostname):\$PWD\> "

Chris

Re: Posix shell : login name in prompt

T G Manikandan — Thu, 31 Oct 2002 11:48:34 GMT

Try this in your .profile

PS1=`hostname`"@"`logname`"#"

Thanks

Re: Posix shell : login name in prompt

harry d brown jr — Thu, 31 Oct 2002 11:54:09 GMT

Why not

whoami

??

or

echo $LOGNAME

?? which works with hpux, aix, and solaris.

live free or die
harry

Re: Posix shell : login name in prompt

BORTZMEYER — Thu, 31 Oct 2002 13:18:38 GMT

1. See my example : i want PS1 changes after su.
Your solutions don't work.
2. whoami is equivalent 2 id -un but doesn't exist on Dynix/ptx.
3. With Solaris, AIX, etc., su does'nt unset $ENV, so $HOME/.shrc is source and PS1 is assigned properly (i.d. id -un is executed)

Re: Posix shell : login name in prompt

T G Manikandan — Thu, 31 Oct 2002 13:33:56 GMT

How about using this

PS1=`/usr/xpg4/bin/id -un`"$"

Thanks

Re: Posix shell : login name in prompt

BORTZMEYER — Thu, 31 Oct 2002 13:51:44 GMT

T.G., i can't find /usr/xpg4/bin/id
i'm on HP-UX 11.0
but it doesn't matter : your solution seems not to work.

To reflect login name in PS1, i think it can't be done in .profile because .profile ISN'T reread after su. Only the script mentioned with $ENV is reread, but su/HP-UX unset it !!!

Any idea ?

Cyril.

Re: Posix shell : login name in prompt

Christian Gebhardt — Thu, 31 Oct 2002 14:29:55 GMT

Hi
it is right that "su " doesn't read .profile but "su - " does.

You can write this lines in /etc/profile than every user has the new prompt (even after a "su " )

Chris

Re: Posix shell : login name in prompt

BORTZMEYER — Thu, 31 Oct 2002 15:04:50 GMT

Chris,
/etc/profile isn't read after su just "su -"
i want my prompt changes everytime i do a su (not only a "su -") like in my example.