Bug 19747
Summary: | Bash's builtin function "read" does not set the variable | ||
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Product: | [Retired] Red Hat Linux | Reporter: | danmcnaul |
Component: | bash | Assignee: | Bernhard Rosenkraenzer <bero> |
Status: | CLOSED NOTABUG | QA Contact: | David Lawrence <dkl> |
Severity: | medium | Docs Contact: | |
Priority: | medium | ||
Version: | 7.0 | CC: | danmcnaul, twaugh |
Target Milestone: | --- | ||
Target Release: | --- | ||
Hardware: | i686 | ||
OS: | Linux | ||
Whiteboard: | |||
Fixed In Version: | Doc Type: | Bug Fix | |
Doc Text: | Story Points: | --- | |
Clone Of: | Environment: | ||
Last Closed: | 2000-10-26 12:25:03 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: |
Description
danmcnaul
2000-10-25 13:04:40 UTC
What about: grep TOPMS_UNIT= serv.conf | sed 's/TOPMS_UNIT=//' | read UNIT ? Or is that what you were doing? Oh Jesus, Yes, that is what I meant. I went back and retested to make sure I didn't pull a Homer. In my examples where I say "BASE_UNIT=" I meant to say "TOPMS_UNIT". Sorry McNaul If you're going to mark the MR as "Resolved, notabug" shouldn't you at least explain yourself. I have scripts that used to work in previous Redhat releases that are now failing because of this. Why is this NOTABUG? McNaul I misunderstood and thought that your original script was in error. But this is what the Single UNIX spec says: "Some systems have implemented the last stage of a pipeline in the current environment so that commands such as: command | read foo set variable foo in the current environment. This extension is allowed, but not required; therefore, a shell programmer should consider a pipeline to be in a subshell environment, but not depend on it." And 'man bash' (line 277) says: "Each command in a pipeline is executed as a separate process (i.e., in a subshell)." So it isn't really a bug in bash, as far as I can see. It isnt a bash bug do foo|bar| (read A; echo $A) I agree that this MR should be closed as NOTABUG. The example given above works to set a variable in the current shell to the value expected. The coding is different, but it works. Dan McNaul *** Bug 20564 has been marked as a duplicate of this bug. *** *** Bug 21902 has been marked as a duplicate of this bug. *** *** Bug 42282 has been marked as a duplicate of this bug. *** *** Bug 59222 has been marked as a duplicate of this bug. *** |