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Asked: 2026-05-20T12:38:22+00:00

I’m trying to call a Ruby script from a bash script, but no luck.

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I’m trying to call a Ruby script from a bash script, but no luck. 

#!/bin/bash
ruby -v

works just fine, so I know that it’s not Ruby, but

#!/bin/bash
ruby bash_test.rb

does not. Here’s the fun part:

john@starfire:~/Desktop$ bash ubuntu_cmds.sh
(LoadError)h file or directory -- bash_test.rb
john@starfire:~/Desktop$ ls *.rb
bash_test.rb

Both files are sitting on my desktop. 

ruby bash_test.rb

works just fine, too.

I’m new to bash scripting, so I’m pretty sure that I’m just making a stupid error.

I’m running Ubuntu 10.10 with Ruby 1.8.7. Thanks in advance for any help or advice.

EDIT: Deleted the .sh and the .rb and started over, and made sure to chmod +x the .sh, and it worked on the first try. I have no idea why. Thanks for the help, though.

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1 Answer

  1. Editorial Team

    Do you have a carriage return in the bash script after the file name ?

    EDITED

    Double check how the filename is being passed to ruby in the bash script.

    Error output should be as below if the file wasn’t found

    ruby: No such file or directory -- bash_test.rb (LoadError)

    From what you are displaying as an error it appears that there is a carriage return that is being assumed by ruby as part of the filename so you are getting the following error output.

     (LoadError)h file or directory -- bash_test.rb
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