add sh to path linux code example

Example 1: how to add path in ubuntu

# Edit .bashrc, or .zshrc in your home directory and add the following line:

export PATH="/path/to/dir:$PATH"

$ source ~/.bashrc
source ~/.zshrc

Example 2: display folder of path linux bashrc

PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\W\[\033[00m\]\$ '
                                                                                       ^^
           this one waaaaaay over here ------------------------------------------------+