Bash

Bash is a classic and should always be understood. After all, it was the first shell that you used so there's a bit of nostalgia surrounding it.

touch creates the file named zk_sync and chmod +x makes the file an executable file, but we still need to say what shell will execute this file, and what exactly are the commands to be executed.
bash command for Big Sur if you ever decide to upgrade
the oh-my-zsh version of bash is now regularly maintained through a git repo called Bash-It
check the file size of something in your directory by wc -c /Users/shwethajayaraj/qisket/file
- you can further turn it into a bash variable by doing:
- ```
     printf "%d\n" $myfilesize
     echo "$myfilesize"```
```

Safe shell scripting practices --> Make sure to use " " !
- example : cat /Applications/Android Studio.app/Contents will give you an error
- but cat "/Applications/Android Studio.app/Contents" will work!
Export paths as an Env variable
- example: export AS_HOME="/Applications/Android Studio.app/Contents"
Dealing with Path with Spaces in it:
- use either back slashes or quotation marks not both
- example:

export PATH=/Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl:$PATH

export PATH="/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl:$PATH"

Not both. Try out the script and see if the file or directory not found error comes up.

You can just use exec to replace your current shell with a new shell:

Switch to bash:

exec bash

Switch to zsh:

exec zsh

This won't affect new terminal windows or anything, but it's convenient.