How Do You Make the Bash Prompt Change Colors When Logged Into a Server?

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If you are someone who access multiple servers throughout the work day, in that case being able to tell which one you are working currently with just at a glance based on a color scheme can be really useful.

The Remote Bash Prompts are set by remote ~/.bashrc, so you will still need to copy it to the remote servers. But, you can use a single ~/.bashrc for all hosts and set the Bash Prompt color depending on the host name:

changing-the-color-of-bash

Notes

  • Do not set the PS1 if it is not set already (which means that, if the shell is not interactive). Just testing to see if the PS1 is “non-empty” is a common way to find out if the shell is interactive or not and we don’t want to confuse programs that do that (that means a more accurate test is checking to see if $- contains i).
  • If you want this code to run when you are logging into a remote server, you should have one of these profile files always source ~/.bashrc (Here I am assuming you already know that).
  • In PS1, the escape codes must be enclosed with in \[…\].
  • \[033[m resets the foreground and background to their default values, so here:\w appears in the terminal background/foreground.
  • \[033[48;5;XXXm\033[38;5;YYYm sets background/foreground to XXX/YYY.
  • For a script that dumps the available colors, try colortest.
  • To check and see what the Bash Prompt would look like, use the: echo -e “<\033[48;5;16m\033[38;5;196mhost\033[m:dir>$ “
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Please note that the article you are reading has an unallocated author as the original author is no longer employed at latesthackingnews.com, this has been put in place to adhere with general data protection regulations (GDPR). If you have any further queries, please contact: [email protected]

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