DevMemphis Command Line Talk

command-line.sh

# in osx terminal

echo Hello      # echo string
echo ${SHELL}   # echo shell (zsh is the default shell in OSX)

# switch to iterm2 https://iterm2.com/

echo ${SHELL}   # still zsh
pwd             # print working directory
ls              # list

cd Desktop
pwd
ls
mkdir hello           # create a folder (show in finder)
touch hello/world.txt # show in finder

man ls                # man is short for manual
ls -l -a
ls -la                # multiple flags can be combined

pwd
cd .                  # change in to same directory
pwd
cd ..                 # cd back to parent directory
pwd                   # notice directory in prompt
cd Desktop            
cd ~
cd Desktop
cd
cd /Users/George      # 4 different ways to cd to home directory
cd ${HOME}
cd /                  # root
cd

# I've been typing ls -la a lot so let's make an alias for it

alias gs='ls -la' # create alias for a command
alias gs          # check alias
gs                # use alias

# close / re-open terminal

gs                
alias gs                                 # the alias is gone
echo 'alias gs="ls -la"' >> .my_profile  # write alias to a file
cat .my_profile                          # check file (cat is short for concatenate)
gs
alias gs
source .my_profile                       # we need to source the file first
alias gs
gs

# close / re-open terminal
gs
alias gs                                 # .my_profile does not get sourced automatically

echo $SHELL
cat .zshrc                               # this file is sourced each session
echo 'alias gs="ls -la"' >> .zshrc
alias gs

# close / re-open terminal

alias gs
gs

# install oh-my-zsh
# https://ohmyz.sh/

# add plugin
# https://github.com/ohmyzsh/ohmyzsh/wiki/Plugins
mkdir -p ~/.oh-my-zsh/custom/plugins/devmemphis
vim ~/.oh-my-zsh/custom/plugins/devmemphis/gpspake.plugin.zsh  # alias gs="ls -la", # echo "Sourcing devmemphis plugin"

# add plugin to .zshrc

# close / re-open terminal

# see echo
alias gs # still there

# add zshedit and zshsource aliases
alias zshedit='vim ~/.oh-my-zsh/gpspake/gpspake.plugin.zsh'      # edit zsh
alias zshsource='source ~/.oh-my-zsh/gpspake/gpspake.plugin.zsh' # source zsh after editing

# export zsh path
export ZSH_PLUGIN_PATH="${HOME}/.oh-my-zsh/gpspake/gpspake.plugin.zsh"

alias zshedit='vim ${ZSH_PLUGIN_PATH}'      # edit zsh
alias zshsource='source ${ZSH_PLUGIN_PATH}' # source zsh after editing

# move zsh plugin to code/dotfiles and symlink
mkdir code/dotfiles/.zsh
echo ${ZSH_PLUGIN_PATH}                     # verify that variable we have exported
mv ${ZSH_PLUGIN_PATH} ~/code/dotfiles/.zsh

# create symlink
ln -ls ~/.zsh ~/code/dotfiles/.zsh
ls -la   # see symlink

# pull code/dotfiles from github and symlink
rm ~/.zsh                   # remove the .zsh directory
rmdir ~/code/dotfiles       # remove the dotfiles directory
cd ~/code
git clone git@github.com:gpspake/dotfiles.git

# recreate symlink
# use up arrow 
# use ctrl+r ln             # ln -ls ~/.zsh ~/code/dotfiles/.zsh

# close / re-open terminal
alias zshedit               # cool
# exit vim
ln -ls ~/.zsh ~/code/dotfiles/.zsh




# reset everything
# pull down
# run script