Hostname displays incorrectly

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Operating Systems Linux Hostname displays incorrectly
# 8  
Old 11-23-2007
Then what is the problem? Is it that the shell is showing NEPTUNE instead of nepttune? You can change that quite easily. In bash this might help:

PS1=$(uname -n):"$PWD# "; export PS1
# 9  
Old 11-23-2007
just see the impact of the command u suggested.

NEPTUNE(admin)@/usr/ [46]
$ PS1=$(uname -n):"$PWD# "; export PS1

It is showing the correct hostname...................nodobout about it.
But can you see that now I am not able to see the current user (previously admin) and also the current directory (previously /usr/)

cant I do it by keeping everything as it is ??
# 10  
Old 11-24-2007
There's also a good chance that NEPTUNE is hardcoded in some profile or related login script. Hostnames don't get converted to uppercase or misspelled by design of the OS.
# 11  
Old 11-24-2007
I was going to suggest that too, ie. the name in uppercase is a simple hard-coded string in someone's "PS1", rather than anything to do with the machine's hostname setting.
PS1 can be set in "/etc/profile", the user's ".profile", their ".bashrc", possible ".kshrc", and any other scripts they have set up to be called during login.

(Also that splitting of the prompt into 2 lines is not very pretty.)
# 12  
Old 11-24-2007
Hey, there is nothing wrong with splitting the prompt into two lines. The first line is a "status line" and the second line is simply the prompt character. I do all of my prompts this way, mostly because drilling down into a deeply nested subdirectory leaves little room on the line to type commands!

But I would agree with the other comments..."nepttune" is the actual hostname, since that's what returns from the hostname and uname commands. If it quacks like a duck, it's a duck. The "NEPTUNE" is coming from somewhere else.
# 13  
Old 11-25-2007
You're right - it's a preference thing.

I don't like a long prompt, so I trim down the path to just the last directory name; I use:
PS1="$(uname -n):\${PWD##*/}(!)$ "

I find that is both compact and informative.

The issue with two-line prompts (for me) is that you're wasting screen lines.

If you want to get really clever, you can issue colour change directives in the prompt, or even set the window title.
But that tends to fall apart if you use a different shell or terminal emulator.
# 14  
Old 11-25-2007
Originally Posted by prowla
But that tends to fall apart if you use a different shell or terminal emulator.
This is simple to solve:

typeset HOST=$(hostname -s)

case $TERM in
          PS1='^[];$LOGNAME@$HOST:$PWD^G^M# '

          PS1='^[]0;$LOGNAME@$HOST:$PWD^G^M# '

          PS1='^[];$LOGNAME@$HOST:$PWD^G^M# '

          PS1='$IFS$LOGNAME@$HOST:$PWD$IFS# '

          PS1='$IFS$LOGNAME@$HOST:$PWD$IFS# '

export PS1

Notice, that the "^[", "^G" and "^M" are single characters, which have to be typed in via "CTRL-V".

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