"which in ruby": Checking if program exists in $PATH from ruby

"which in ruby": Checking if program exists in $PATH from ruby

ruby unix path

unix

What is the meaning of *nix?

ruby linux unix operating-system

unix

How to get the width of terminal window in Ruby

ruby unix terminal

unix

How do I use (n)curses in Ruby?

ruby unix curses

unix

tree command on osx bash

ruby bash unix tree pry

unix

In-place progress output in the terminal or console

ruby unix terminal ncurses

unix

On Unix, find if user who executed the program is root?

ruby-on-rails ruby bash unix rake

unix

How to fire and forget a subprocess?

ruby unix process fork

unix

Change the ruby process name in top

ruby linux unix top-command

unix

Is the Unix Philosophy falling out of favor in the Ruby community? [closed]

ruby unix

unix

How might I pass text data from the ruby console into my clipboard without saving to a file?

ruby unix clipboard pbcopy

unix

Rails bundle - bad interpreter

ruby-on-rails ruby unix rvm

unix

Why and when to use the shell instead of Ruby [closed]

ruby scripting unix

unix

How do you pipe output from a Ruby script to 'head' without getting a broken pipe error

ruby unix pipe

unix

Ruby: get local IP (nix)

ruby unix ip

unix