Visit Our UNIX and Linux User Community


Hostname displays incorrectly


 
Thread Tools Search this Thread
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
nepttune:/usr/#


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:
Code:
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
Quote:
Originally Posted by prowla
But that tends to fall apart if you use a different shell or terminal emulator.
This is simple to solve:

Code:
typeset HOST=$(hostname -s)

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

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

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


     vt100|ansi)
          PS1='$IFS$LOGNAME@$HOST:$PWD$IFS# '
          ;;

     *)
          PS1='$IFS$LOGNAME@$HOST:$PWD$IFS# '
          ;;

esac
export PS1

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

bakunin

Previous Thread | Next Thread
Test Your Knowledge in Computers #858
Difficulty: Medium
AJAX is a set of web development techniques using many web technologies on the server-side to create asynchronous web applications.
True or False?

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Hostname -f hostname: Unknown host

deleted (0 Replies)
Discussion started by: hce
0 Replies

2. UNIX for Dummies Questions & Answers

Incorrectly using 'ls' in if/then alias

I have an alias defined in which I wish to print the contents of a specific directory using 'ls' based on the if/then condition. The if/then conditions are being correctly evaluated, and the 'ls <path>' result is correct (tested directly in a terminal) although for some reason it seems the 'ls... (4 Replies)
Discussion started by: coldcoffeecup
4 Replies

3. UNIX for Dummies Questions & Answers

Strings comparing incorrectly

Hello I'm very new to Linux and shell scripting so I only know basic stuff. I'm making a script with the purpose of finding the longest string or word in a file. Here's what I got so far: #!/bin/bash longest="" for i in $(strings -n $1); do if ] then longest=$i fi done echo $longest... (4 Replies)
Discussion started by: SCB
4 Replies

4. Emergency UNIX and Linux Support

HP UX - ILO Console hostname different than Machine Hostname...

Hi All, So we added a new HP-UX 11.31 machine. Copied OS via Ignite-UX (DVD)over from this machine called machine_a. It was supposed to be named machine_c. And it is when you log in...however when I'm in the ILO console before logging in, it says: It should say: What gives? And how do... (4 Replies)
Discussion started by: zixzix01
4 Replies

5. AIX

Command last displays wrong hostname

I faced an interesting problem on my AIX servers. When I checked last logins with command last I saw that hostnames are wrong. Let say, I made login from workstation xxxxx and with the command last I saw: root pts/2 yyyyy 5 jan 15:38 still logged in Ping xxxxx and ping... (3 Replies)
Discussion started by: giovanni
3 Replies

6. UNIX for Dummies Questions & Answers

character displayed incorrectly by ftp

Hi there, I have a ftp server called atlantis. Because of the f...g french characters, I noticed something very weird. Depending on what program I use (ftp, lftp or ssh) the same character is displayed as three different ways. On my local computer, the file is correctly displayed as "modéles".... (1 Reply)
Discussion started by: chebarbudo
1 Replies

7. UNIX for Dummies Questions & Answers

PATH variable set incorrectly?

I've noted that in order to use commands like ifconfig, I have to prefix the commands with the directory. /etc/profile shows that the paths should be part of the PATH environment variable; any idea where the bug is? :confused: # /etc/profile # System wide environment and startup... (1 Reply)
Discussion started by: jon80
1 Replies

8. UNIX for Dummies Questions & Answers

Solaris - unknown hostname - how can I change hostname?

Hello, I am new to Solaris. I am using stand alone Solaris 10.0 for test/study purpose and connecting to internet via an ADSL modem which has DHCP server. My Solaris is working on VMWare within winXP. My WinXP and Solaris connects to internet by the same ADSL modem via its DHCP at the same... (1 Reply)
Discussion started by: XNOR
1 Replies

9. Shell Programming and Scripting

Writing to a log file incorrectly

I have this script: #!/bin/ksh ######### Environment Setup ######### PATH=/gers/nurev/menu/pub/sbin:/gers/nurev/menu/pub/bin:/gers/nurev/menu/pub/mac :/gers/nurev/menu/adm/sbin:/gers/nurev/menu/adm/bin:/gers/nurev/menu/adm/mac:/ge... (5 Replies)
Discussion started by: heprox
5 Replies

Featured Tech Videos