.bashrc
This may mean changing style and grammar, adding new links, or fact-checking content.
A .bashrc or .bash_profile file contains settings that are applied to non-interactive or interactive shells respectively. All the things described in this document are applicable to both, so it's reasonable to create only one and symlink the other one to it (or include it by saying something like . ~/.bashrc in your .bash_profile).
Simple things
Setting the PATH
It's often nice to have more binaries directly accessible in your PATH environment variable. To do this, I use the following settings:
export PATH=/usr/site/bin:/usr/sbin:/usr/bin:/usr/local/bin:/bin if [ "$LOGNAME" = "root" ]; then export PATH=$PATH:/sbin fi
Changing the prompt
Having a colored prompt can be helpful to notice quickly where the prompt is in a long listing of output, and having a reminder who you are logged in as and where you are never hurts. To accomplish this, I use the following prompt:
export PS1="\[\033[34m\]\u\[\033[0m\]@\[\033[32m\]\h\[\033[0m\]:\[\033[31m\]\w\[\033[0m\]\\$ "
This translates to a comman dprompt that looks like the following.
This format has the advantage of being usable by scp; if you have to copy a file from that directory onto another machine, you can copy/paste the whole string into your scp command.
Changing the terminal name
Setting the name of the terminal is reflected in the title bar in gnome-terminal, or with a similar mechanism for other terminals (or GNU screen). I use the following settings:
case $TERM in
xterm*)
PROMPT_COMMAND='echo -ne "\033]0;${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/~}"; echo -ne "\007"'
;;
screen*)
PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/~}"; echo -ne "\033\\"'
;;
*)
;;
esac
This will give a title that looks like
username@hostname:~/Documents
Changing your default pager
If you are on a sufficiently old system, the outdated pager more is used. You may want to set the pager to less instead.
export PAGER=less
