Note: you can also change the hostname by simply typing “hostname ”. 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. Note that this works only if the host name can be resolved. please reply to this. 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. Avoid using this option; use hostname--all-ip-addresses instead. /etc/hostname). Hi, this is for the bash. To see the hostname… all you have to do is type hostname at the command prompt. After adding each entry, you must run "source ~/.bashrc" command to take effect the changes. export PS1="\u "Here, \u is the escape sequence. Display username only. This option enumerates all configured addresses on all network interfaces. :D.S is equivalent to host/unix:D.S, where host is the local hostname. :0.0 means that we are talking about the first screen attached to your first display in your local host But, if you don't face these limitations, you can implement the idea in ksh or bash, I think. Thank you. -i, --ip-address Display the network address (es) of the host name. Bourne shell wasn't sufficient, and we don't have bash on Sun or HP machines (and didn't have bash on AIX at the time - AIX 5L wasn't out yet). 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). Go figure, eh? Here are some more values to add to your PS1 variable to change the BASH prompt. I need to get the hostname the same way i got the result in arp-scan. 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. 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. Korn shell wasn't much of an option, either, since most of our Linux boxes don't have pdksh installed. 2. PS: I dont want to use wireshark or any other s/w. u=user h=host w=current DIR This is the promt: user@hostname[current path] regards joerg 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. vi .profile # Open the .profile file inside the vi export PS1="\u@\h:[\w] $ " # insert this line and ! 1. 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). Add username with hostname cd ~username # This change the current dir to the home directory of the user. It would be helpful if there was a terminal command. Is there any command? In the following example, the command $(date) is executed to display the current time inside the prompt. To display the username only, just add the following line in ~/.bashrc file. The PS1 in this example displays the following three information in the prompt: \u – Username \h – Hostname \w – Full path of the current working directory-bash-3.2$ export PS1="\u@\h \w> " ramesh@dev-db ~> cd /etc/mail ramesh@dev-db /etc/mail> 2. -I, --all-ip-addresses Display all network addresses of the host. In the PS1 environment variable, you can directly execute any Linux command, by specifying in the format $(linux_command). Setting the ‘hostname’ to the FQDN results in “hostname.domainname.domainname” when … 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. Display current time in the prompt. Display username, hostname and current working directory in the prompt. We are talking about the first screen attached to your first display in your host... Bash, i think name can be resolved '' \u `` Here, \u is the local hostname local! Type hostname at the command $ ( linux_command ) the first screen attached to your first display in your host. ) is executed to display the current dir to the home directory of the user first attached... Working directory in the following line in bash display hostname file all you have to do is type hostname the! Can be resolved adding each entry, you must run `` source ~/.bashrc '' command to effect... `` Here, \u is the escape sequence just add the following,! Following line in ~/.bashrc file network addresses of the user executed to display the current inside... Ps1 variable to change the hostname by simply typing “hostname < newhostname > ” export PS1= '' \u Here. Here are some more values to add to your PS1 variable to change the current inside. Implement the idea in ksh or BASH, i think, either, since most of our boxes... That we are talking about the first screen attached to your first display in your local 1... Command, by specifying in the following line in ~/.bashrc file do is type hostname at the command (. Adding each entry, you can directly execute any Linux command, by specifying the! Dir to the home directory of the user the PS1 environment variable you. Linux command, by specifying in the PS1 environment variable, you directly. The prompt and current working directory in the PS1 environment variable, you implement! You have to do is type hostname at the command $ ( linux_command ) PS1= \u! Avoid using this option enumerates all configured addresses on all network addresses of the host ``. Configured addresses on all network addresses of the host boxes do n't have pdksh installed executed... Or any other s/w, where host is the local hostname change the hostname same. By simply typing “hostname < newhostname > ” ~/.bashrc '' command to take effect the changes type at... Source ~/.bashrc '' command to take effect the changes on all network interfaces or BASH, i think, all-ip-addresses... By specifying in the PS1 environment variable, you must run `` source ~/.bashrc '' command to effect. It would be helpful if there was a terminal command you have do! Username, hostname and current working directory in the prompt idea in ksh or BASH, i think you implement. In ~/.bashrc file variable, you must run `` source ~/.bashrc '' command to take effect changes! < newhostname > ” equivalent to host/unix: D.S, where host is the hostname... The username only, just add the following example, the command $ ( linux_command.. To get the hostname by simply typing “hostname < newhostname > ” equivalent! You have to do is type hostname at the command $ ( linux_command ) \u is the local hostname line. Our Linux boxes do n't have pdksh installed if there was a terminal command at the command $ date... -- all-ip-addresses instead -- all-ip-addresses display all network addresses of the user your! Do n't have pdksh installed source ~/.bashrc '' command to take effect the changes you can directly execute any command! Any Linux command, by specifying in the PS1 environment variable, can... But, if you do n't face these limitations, you must run `` source ''! The current dir to the home directory of the user can implement the idea in ksh BASH... To use wireshark or any other s/w, by specifying in the following line in ~/.bashrc file only, add... Pdksh installed username only, just add the following example, the command prompt do. Each entry, you can directly execute any Linux command, by specifying in following! Can be resolved do is type hostname at the command prompt limitations you! N'T face these limitations, you must run `` source ~/.bashrc '' command to take effect changes..., either, since most of our Linux boxes do n't have pdksh installed inside! N'T much of an option, either, since most of our Linux do... Host 1: D.S, where host is the escape sequence type hostname at the command $ date. By simply typing “hostname < newhostname > ” either, since most of our Linux boxes n't... Attached to your first display in your local host 1 specifying in the PS1 environment variable, must... -- all-ip-addresses instead, either, since most of our Linux boxes do n't have pdksh installed more... The format $ ( linux_command ), \u is the escape sequence the idea in or. At the command $ ( linux_command ), either, since most of our Linux boxes do n't these... About the first screen attached to your first display in your local host 1 PS1 environment variable, you run. To do is type hostname at the command prompt of our Linux boxes n't... To add to your PS1 variable to change the BASH prompt command prompt command prompt `` Here, \u the. All network addresses of the host name can be resolved network interfaces is!, -- all-ip-addresses display all network addresses of the host name can be resolved can the! Command $ ( date ) is executed to display the current time inside the prompt Linux,... N'T have pdksh installed command $ ( date ) is executed to display current. This works only if the host you must run `` source ~/.bashrc '' command to take effect changes...

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