How to make Ruby file run as executable? - ruby

I want my Ruby Script File to run as executable from any directory of Windows XP. I have created a test.rb (Ruby Script file) and want to run it from any directory of my Windows as "test" for example, "C:\test" or "C:\Directory\test" runs my file test.rb.
#!/usr/bin/envy ruby
p "Hi this is my test file"
I have added the shebang code in my ruby file but when I have to run the Ruby Script, I have to locate my Script file and run it expicitly as "ruby test.rb".
I have also made the file executable by executing the command:$ chmod +x hello-world.rb
, but it still does not work.
Thanks in advance.


I assume you're using Linux or OS X and creating the file on a disk accessible from Windows? Windows does not use shebangs, and it does not use Unix file modes. You will need to associate files with the .rb extension to the Ruby executable; details for that operation can be found at this Stack Overflow question; once you have done this, you can run C:\whatever\test.rb or C:\whatever\test to execute the script.

Related

how to run script with simple command

I have project structure like this
project
|app
|script
inside script folder, there are files such as 'run'
run file content:
#!/bin/bash
npm start
I want to run the file 'run' while I'm at the root of my project by typing only command 'run'. How would you do this?

This is sh file. In order to execute sh file on linux this file has to be executable.
Make sure this file has X permission.
If there is no x permission on file simply execute the command
chmod +x run.sh
Then execute the file by typing
./run.sh
For windows you need to create .bat file.

I'm not quite sure what you want but assuming you need a way to execute a file from node.js, you can use child_process module and child_process.exec method to start any executable.

Assuming the run file in the script directory is executable (if not, run chmod +x script/run), it can be executed by running ./script/run.
If you want to avoid having to type the name of the directory (script), you could append the script directory to your PATH environment variable. If you’re running a POSIX compatible shell (not csh or tcsh), this can be done using:
export PATH="$PATH:/path/to/project/script"
This will allow you to run any executable command in the script directory without having to specify the name of the directory, e.g., run.
NB: be sure that there aren’t common command names in the script directory as these commands can be run from any directory (including outside the project directory) after it has been added to the PATH. That’s also why I suggest adding it to the end of the PATH (so it’s the last directory that’s searched for executable commands).

Creating a batch file that runs a Ruby script

I want to create a batch file which can run a Ruby file like test.rb.
Anyone have any idea how to create one?
Im using Ruby 2.0.0 and Windows 10.

You just need to do this.
cd location
test.rb
This might also work.
cd ruby_install_location
ruby.exe c:/fullpath/test.rb

How to run executable file in Apple Script

I'm trying to run a executable file using applescript in FileMaker.
I've been trying...
do shell script "./firstscript"
This results in the error "sh: ./firstscript: No such file or directory"
If I type './firstscript' directly in bash the file is properly being executed.
Any ideas on how I should be pointing to my executable file inside the apple script?

You probably have the wrong working directory - use a full path instead, e.g.
do shell script "/path/to/firstscript"

How do I run .sh or .bat files from Terminal?

I have a pretty basic problem here, that has happened so haphazardly to me that up until now, I've just ignored it. I downloaded tomcat web server and "Murach's Java Servlets and JSP" book is telling me to navigate to the tomcat/bin directory and start the server my typing in Terminal
$ startup
However, I get the error
-bash: startup: command not found
The relevant files in this directory are startup.sh and startup.bat. Typing both of these returns the same error message
So my questions are, what are .bat and sh files, and how do I run these files? I've read several tutorials for different languages and software programs, and some times when the tutorial says execute a bunch of files in the command line, I get a "command not found" error. Sometimes it works, sometimes it doesn't. This is perplexing to me, so what are some common solutions to solving these sort of "command not found" Terminal problems?

The .sh is for *nix systems and .bat should be for Windows. Since your example shows a bash error and you mention Terminal, I'm assuming it's OS X you're using.
In this case you should go to the folder and type:
./startup.sh
./ just means that you should call the script located in the current directory. (Alternatively, just type the full path of the startup.sh). If it doesn't work then, check if startup.sh has execute permissions.

This is because the script is not in your $PATH. Use
./scriptname
You can also copy this to one of the folders in your $PATH or alter the $PATH variable so you can always use just the script name. Take care, however, there is a reason why your current folder is not in $PATH. It might be a security risk.
If you still have problems executing the script, you might want to check its permissions - you must have execute permissions to execute it, obviously. Use
chmod u+x scriptname
A .sh file is a Unix shell script. A .bat file is a Windows batch file.

Type bash script_name.sh or ./script_name in linux terminal. Before using ./script_name make you script executeable by sudo chmod 700 script_name and type script_name.bat in windows.

Drag-And-Drop
Easiest way for a lazy Mac user like me: Drag-and-drop the startup.sh file from the Finder to the Terminal window and press Return.
To shutdown Tomcat, do the same with shutdown.sh.
You can delete all the .bat files as they are only for a Windows PC, of no use on a Mac to other Unix computer. I delete them as it makes it easier to read that folder's listing.
File Permissions
I find that a fresh Tomcat download will not run on my Mac because of file permission restrictions throwing errors during startup. I use the BatChmod app which wraps a GUI around the equivelant Unix commands to reset file permissions.
Port-Forwarding
Unix systems protect access to ports numbered under 1024. So if you want to use port 80 with Tomcat you will need to learn how to do "port-forwarding" to forward incoming requests to port 8080 where Tomcat listens by default. To do port-forwarding, you issue commands to the packet-filtering (firewall) app built into Mac OS X (and BSD). In the old days we used ipfw. In Mac OS X 10.7 (Lion) and later Apple is moving to a newer tool, pf.

Based on IsmailS' comment the command which worked for me on OSX was:
sudo sh ./startup.sh

On windows type either startup or startup.bat
On unix type ./startup.sh
(assuming you are located in tomcat/bin directory)

Batch files can be run on Linux. This article explains how (http://www.linux.org/threads/running-windows-batch-files-on-linux.7610/).

Type in
chmod 755 scriptname.sh
In other words, give yourself permission to run the file. I'm guessing you only have r/w permission on it.

add #!bin/bash on top of the your .sh file
sudo chmod +x your .sh file
./your.sh file
these steps work~

My suggestion does not come from Terminal; however, this is a much easier way.
For .bat files, you can run them through Wine. Use this video to help you install it: https://www.youtube.com/watch?v=DkS8i_blVCA. This video will explain how to install, setup and use Wine. It is as simple as opening the .bat file in Wine itself, and it will run just as it would on Windows.
Through this, you can also run .exe files, as well .sh files.
This is much simpler than trying to work out all kinds of terminal code.

I had this problem for *.sh files in Yosemite and couldn't figure out what the correct path is for a folder on my Desktop...after some gnashing of teeth, dragged the file itself into the Terminal window; hey presto!!

Terminal not executing Ruby files

I'm pretty much entirely new to programming, so bear with me. I am on a Macbook Pro running 10.6.6.
At the beginning of the "Learn to Program" tutorial are these directions:
Save your program (yes, that's a program!) as calc.rb (the .rb is what we usually put at the end of programs written in Ruby). Now run your program by typing ruby calc.rb into your command line. It should have put a 3 on your screen. See, programming isn't so hard, now is it?
When I type ruby calc.rb I get the following error:
ruby: No such file or directory -- calc.rb (LoadError)
What am I doing wrong? "Calc.rb" is saved on my desktop, if it matters.

If you have named your file "Calc.rb" you'll need to run ruby Calc.rb (capital "C").
Also make sure that you're navigating the /Desktop directory — e.g. type
cd ~/Desktop
ruby Calc.rb
You can use ls to get a list of all the files in the current directory. You could use that to see if the file you're trying to execute actually exists.

In Terminal, did you change your current directory to your desktop before running your program ?
If your program is stored on your desktop, you first need to change directory to your desktop or your Ruby script will not be found.
$ cd Desktop
$ ruby calc.rb

ruby 1.9.3p0 (2011-10-30) [i386-mingw32]
C:\Ruby Programs>ruby calc.rb
ruby: No such file or directory -- calc.rb (LoadError)
C:\Ruby Programs>ruby calc.rb.txt
3
One should not have to add the .txt extension while attempting to run the program from whithin the program's home folder. I have to though.

Did you call your file Calc.rb and saved it as a rb file to. becouse then its called internaly. Calc.rb.rb
and be sure to run cmd from desktop :D

You need to make sure you're running the command in the same directory you have the calc.rb file.
Type "cd " then the directory calc.rb is in to change it.
Then just do "ruby calc.rb"

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