A bash function that prints difference between two strings

diff_str.sh

## Install `colordiff` on Ubuntu
# sudo apt-get install colordiff

## Install `colordiff` on MacOS X
# brew install colordiff


# diff-hight is a cli utility from git (since version 2.9).
# It is located in `/usr/share/doc/git/contrib/diff-highlight/diff-highlight` on Ubuntu and
# on `/usr/local/Cellar/git/2.18.0/share/git-core/contrib/diff-highlight/diff-highlight` on MacOS X
# You can create a symlink like that
# ln -s /usr/local/Cellar/git/2.18.0/share/git-core/contrib/diff-highlight/diff-highlight /usr/local/bin/diff-highlight. 

## Usage example

# > $ diff_str test tost                                                                                                                                       [±master ●●]
# --- /dev/fd/13	2018-07-18 10:35:47.000000000 +0200
# +++ /dev/fd/14	2018-07-18 10:35:47.000000000 +0200
# @@ -1 +1 @@
# -@test
# +@tost

# you can put this function to your .bashrc or .zshrc
diff_str(){
    diff -u <(echo @$1) <(echo @$2) | colordiff | diff-highlight
}