Bug 1262847
| Summary: | typeset -u/-l not working on values assigned before calling typeset | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Martin Kyral <mkyral> |
| Component: | bash | Assignee: | Ondrej Oprala <ooprala> |
| Status: | CLOSED NOTABUG | QA Contact: | BaseOS QE - Apps <qe-baseos-apps> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.1 | CC: | ovasik |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2015-09-15 06:33:17 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: | |||
Hi Martin, this is the way it's supposed to work. The conversion is done upon assignment, not upon expansion (as zsh does, for example), so existing values are not affected... or as the manpage says: "When the variable is assigned a value, all lower-case characters are converted to upper-case." |
Description of problem: typeset has options -u and -l to uppercase / lowercase all characters in the given variable. While this works if there is value assigned to the variable within the typeset call, it fails to do so if the value has been assigned to the variable before calling typeset upon it. See the demo. test.sh: #!/bin/bash echo "value assigned via typeset" typeset -u test_u=uppercase typeset -xu test_xu=uppercase typeset -txu test_txu=uppercase echo "uppercased: ${test_u} ${test_xu} ${test_txu}" unset test_u unset test_xu unset test_txu typeset -l test_u=LOWERCASE typeset -xl test_xu=LOWERCASE typeset -txl test_txu=LOWERCASE echo "lowercased: ${test_u} ${test_xu} ${test_txu}" unset test_u unset test_xu unset test_txu test_u=uppercase typeset -u test_u test_xu=uppercase typeset -xu test_xu test_txu=uppercase typeset -txu test_txu echo "value assigned before calling typeset" echo "uppercased: ${test_u} ${test_xu} ${test_txu}" unset test_u unset test_xu unset test_txu test_u=LOWERCASE typeset -u test_u test_xu=LOWERCASE typeset -xu test_xu test_txu=LOWERCASE typeset -txu test_txu echo "lowercased: ${test_u} ${test_xu} ${test_txu}" unset test_u unset test_xu unset test_txu [0 root@qeos-51 ~]# bash test.sh value assigned via typeset uppercased: UPPERCASE UPPERCASE UPPERCASE lowercased: lowercase lowercase lowercase value assigned before calling typeset uppercased: uppercase uppercase uppercase lowercased: LOWERCASE LOWERCASE LOWERCASE Version-Release number of selected component (if applicable): bash-4.2.46-19.el7 How reproducible: Always Steps to Reproduce: 1. see description 2. 3. Actual results: Expected results: Additional info: