How do I run a Ruby command in Linux?
Ruby “execute shell command” examples
- Use the backtick operator. First, I’ll use the backtick operator to execute a shell command.
- Use the %x function. You can also use Ruby’s %x command, like this: puts %x{ls -al}
- Two things to remember. There are at least two things to remember when running systems commands like this:
What is Ruby command in Linux?
DESCRIPTION. Ruby is an interpreted scripting language for quick and easy object-oriented programming. It has many features to process text files and to do system management tasks (like in Perl). It is simple, straight-forward, and extensible.
What is Ruby command?
Ruby command is a free and open source programming language; it is flexible and is feature rich. As the name suggests, ruby indeed is a jewel language which comes at a very low entry cost. Its plug and play capability and also easily readable syntax makes it very user-friendly.
What are Ruby commands?
Ruby – Command Line Options
| Sr.No. | Option & Description |
|---|---|
| 1 | -a Used with -n or -p to split each line. Check -n and -p options. |
| 2 | -c Checks syntax only, without executing program. |
| 3 | -C dir Changes directory before executing (equivalent to -X). |
| 4 | -d Enables debug mode (equivalent to -debug). |
How do I open Ruby in terminal?
You can start it by typing irb in your shell and hitting enter. Its name is short for “Interactive Ruby Shell”, and yes, it is another kind of shell: Just like the shell running in your terminal irb is also a program that interactively waits for you to type something, and hit enter.
How do I start Ruby shell?
How do you code in Ruby?
Ruby in Twenty Minutes
- If you’re using macOS open up Terminal and type irb , then hit enter.
- If you’re using Linux, open up a shell and type irb and hit enter.
- If you’re using Windows, open Interactive Ruby from the Ruby section of your Start Menu.