» From Bash to Z Shell
If your usage of Mac OS X is the slightest bit “technical” then you should do yourself the favor of getting familiar with the extremely powerful shell environment.
Even if you already know a dozen scripting languages far more expressive than the shell, there are still contexts in which the shell is just better suited for the job, and understanding the POSIX environment is knowledge that is very valuable even outside the shell.
James Edward Gray has a review of From Bash to Z Shell which…
