Mac Modify the host name and prompt in terminal and iterm
Commonly used terminals on Mac are terminal and iterm. In many cases, we need to modify the host name displayed in these terminals.
As shown in the figure above, we use the command hostnameto view the current host name
From the results we can see that the host name is "Ji Yi Ke".
To change the host name, use the following command
$ sudo scutil --set HostName newHostName
For example, we change the host name to "迹忆"
$ sudo scutil --set HostName 迹忆
After the above command, restart the terminal and we can see that the host name has been changed.
Sometimes we need to modify the prompt in the terminal. For example, we want to modify the jiyik.com displayed in the terminal. If you want to modify this, you need to edit the /etc/bashrc filePS1
Now let's take a look at the contents of /etc/bashrc on my machine
# System-wide .bashrc file for interactive bash(1) shells.
if [ -z "$PS1" ]; then
return
fi
PS1='\h:\W jiyik.com\$ '
# Make bash check its window size after a process completes
shopt -s checkwinsize
[ -r "/etc/bashrc_$TERM_PROGRAM" ] && . "/etc/bashrc_$TERM_PROGRAM"
Let's do a simple analysis of the contents of PS1: -hit represents the host name; \Wit represents the current directory; followed by a fixed string - jiyik.com; and then the prompt$
These items constitute the prompt displayed by our terminal
At this point, it is relatively easy to modify the content of the terminal prompt. We only need to replace "jiyik.com" with another string. For example, we change it to "jiyik". We only need to modify PS1 as shown below
PS1='\h:\W jiyik\$ '
After saving and exiting, restart the terminal and you can see that the prompt has been changed.
We have learned about the composition of the terminal prompt, which is mainly PS1controlled by . In this way, we can construct our favorite terminal prompt.
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