Bug 65030
| Summary: | Bash Variable Expansion | ||
|---|---|---|---|
| Product: | [Retired] Red Hat Linux | Reporter: | Mitchell R. Pryor <mpryor> |
| Component: | bash | Assignee: | wdovlrrw <brosenkr> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.1 | ||
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | i386 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2002-05-16 16:19:47 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
The `:-' doesn't specify a negative offset. It has a
well-defined meaning: expand to `2:2' if `var' is unset or null. If
you want to use a negative offset in this context, use
echo ${var: -2:2}
|
Description of Problem: Negative offset with variable expansion does not work. Version-Release number of selected component (if applicable): 2.04.21(1) How Reproducible: Enter steps below Steps to Reproduce: 1. var=12345 2. echo ${var:-2:2} 3. Actual Results: 12345 Expected Results: 45 Additional Information: