Bash – Where is the system profile that gets sourced at login on CentOS 5.8

I would look in /etc/profile.d/ for the offending alias.

You could also do the following to find it:

grep -r '^alias COMMAND' /etc

This will recursively grep through files looking for a line beginning with alias COMMAND.

If all else fails, put this at the end of your ~/.bashrc

unalias COMMAND

Here /sys/module/vt/parameters are three files:

default_blu
default_grn
default_red

Yellow is green and red. If you want to "boost" the normal color yellow (which you may have as brown), change the color with index three (the fourth slot) - set it to 255 in the green and red files.

Then, echo -n '\033]R'; tput setaf 3; echo hi and you should get yellow.

For me, it seems this is already the color for bright yellow, in which case you'd use: tput bold; tput setaf 3; echo hi.

If you need to setup the prompt differently in the console and in X, in your .rc file, before you set PS1, find out if you are in the console or in X. Set the color accordingly.