Bug 908534
Summary: | Shebang line '#!/usr/bin/env ruby --verbose' complains on 'ruby --verbose' | ||||||
---|---|---|---|---|---|---|---|
Product: | [Fedora] Fedora | Reporter: | Horst H. von Brand <vonbrand> | ||||
Component: | coreutils | Assignee: | Ondrej Vasik <ovasik> | ||||
Status: | CLOSED NOTABUG | QA Contact: | Fedora Extras Quality Assurance <extras-qa> | ||||
Severity: | medium | Docs Contact: | |||||
Priority: | unspecified | ||||||
Version: | 18 | CC: | admiller, kdudka, kzak, ovasik, p, rrakus, twaugh | ||||
Target Milestone: | --- | ||||||
Target Release: | --- | ||||||
Hardware: | x86_64 | ||||||
OS: | Linux | ||||||
Whiteboard: | |||||||
Fixed In Version: | Doc Type: | Bug Fix | |||||
Doc Text: | Story Points: | --- | |||||
Clone Of: | Environment: | ||||||
Last Closed: | 2013-02-08 09:40:33 UTC | Type: | Bug | ||||
Regression: | --- | Mount Type: | --- | ||||
Documentation: | --- | CRM: | |||||
Verified Versions: | Category: | --- | |||||
oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
Cloudforms Team: | --- | Target Upstream Version: | |||||
Embargoed: | |||||||
Attachments: |
|
I guess bash is probably playing some game here - try to run e.g. /usr/bin/env ls -l -> it works - and if you use it as a shebang, it doesn't... adding Bash maintainer to CC. The executor is kernel. From my quick search the correct "shebang" line is: #!interpreter [argument] and argument is only 1 argument and couldn't contain white space. I didn't find any specification. What bash do: 1) tries to call execve() function to execute the command - our kernel interprets the shebang line 2) It's possible the kernel doesn't support shebang line interpretation and bash can do it itself. However also bash interprets only 1 argument. In other words, there is no option to provide more than one argument for interpreter in shebang. Ok, thanks for explanation Roman - closing NOTABUG - as this is not a bug in coreutils and it seems to be correct behaviour. Maybe it could be filed as RFE for kernel to improve the shebang handling of multiargs. |
Created attachment 694191 [details] Script showing the problem Description of problem: Shebang line '#!/usr/bin/env ruby --verbose' complains it doesn't find 'ruby --verbose' Version-Release number of selected component (if applicable): coreutils-8.17-8.fc18.x86_64 How reproducible: Always Steps to Reproduce: 1. Run a simple script with the give shebang 2. 3. Actual results: /usr/bin/env: ruby --verbose: No such file or directory Expected results: Run the script Additional info: