The idea command. I read about this a few days back and found it really interesting.

Many times we want to jot down some ideas, notes etc while working. It would be awesome if we could just type idea into terminal and start taking notes. Here is how to do it :

1. Create a hidden ideas file in your home directory - touch ~/.ideas.md
2. Add an alias in bash_profile to open it quickly - alias idea="vim ~/.ideas.md"
3. Now to take any note simply type idea in terminal.

Now I use this setup actively whenever I need to note down something.

type instead of which - lots of commands are not binaries and don't show up for which.

ctrl+r for reverse searching commands.

cd - and cd ~

Also... don't replicate your bash profile on every machine you use. Keep your real stuff in source control or dropbox, then source it on each machine. Makes life easier.

Download and unextract directly a .tar.gz archive (bash alias):

dluntar() { tar zxv < <(wget -q -O - $1) }

My cheeky bash trick ;-)

cd /etc/yum.repos.d/

wget download.opensuse.org/repositories/shells:fish:re…

yum install fish