In the PS1 environment variable, you can directly execute any Linux command, by specifying in the format $(linux_command). vi .profile # Open the .profile file inside the vi export PS1="\u@\h:[\w] $ " # insert this line and ! For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. Avoid using this option; use hostname--all-ip-addresses instead. host/unix:D.S means screen S on display D of host host; the X server for this display is listening at UNIX domain socket /tmp/.X11-unix/XD (so it's only reachable from host). After adding each entry, you must run "source ~/.bashrc" command to take effect the changes. the Fqdn You can't change the FQDN (as returned by hostname --fqdn ) or the DNS domain name (as returned by dnsdomainname ) with this command. The host name is usually set once at system startup in /etc/rc.d/rc.inet1 or /etc/init.d/boot (normally by reading the contents of a file which contains the host name, e.g. The same thing works in Linux or OS X, though you can see that most of the time the hostname is part of the prompt anyway. Display current time in the prompt. u=user h=host w=current DIR This is the promt: user@hostname[current path] regards joerg But, if you don't face these limitations, you can implement the idea in ksh or bash, I think. I need to get the hostname the same way i got the result in arp-scan. The ‘hostname’ is the ‘shortname’ of the system instance, with the FQDN being the ‘hostname’ with the DNS ‘domain name’ appended (upon using a command to provide it). Thank you. This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. To display the username only, just add the following line in ~/.bashrc file. Go figure, eh? 1. Hi, this is for the bash. Here are some more values to add to your PS1 variable to change the BASH prompt. Korn shell wasn't much of an option, either, since most of our Linux boxes don't have pdksh installed. Note that this works only if the host name can be resolved. -i, --ip-address Display the network address (es) of the host name. PS: I dont want to use wireshark or any other s/w. :D.S is equivalent to host/unix:D.S, where host is the local hostname. The PS1 in this example displays the following three information in the prompt: \u – Username \h – Hostname \w – Full path of the current working directory-bash-3.2$ export PS1="\u@\h \w> " ramesh@dev-db ~> cd /etc/mail ramesh@dev-db /etc/mail> 2. This option enumerates all configured addresses on all network interfaces. Setting the ‘hostname’ to the FQDN results in “hostname.domainname.domainname” when … In the following example, the command $(date) is executed to display the current time inside the prompt. cd ~username # This change the current dir to the home directory of the user. :0.0 means that we are talking about the first screen attached to your first display in your local host Add username with hostname Is there any command? To see the hostname… all you have to do is type hostname at the command prompt. export PS1="\u "Here, \u is the escape sequence. /etc/hostname). 2. It would be helpful if there was a terminal command. Display username only. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. 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