Bug 1576050 - $_ corrupted in Fedora 28 and Rawhide bash
Summary: $_ corrupted in Fedora 28 and Rawhide bash
Alias: None
Product: Fedora
Classification: Fedora
Component: bash
Version: 30
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Siteshwar Vashisht
QA Contact: Fedora Extras Quality Assurance
Depends On:
TreeView+ depends on / blocked
Reported: 2018-05-08 16:20 UTC by Till Maas
Modified: 2020-05-26 15:04 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2020-05-26 15:04:16 UTC
Type: Bug

Attachments (Terms of Use)

Description Till Maas 2018-05-08 16:20:28 UTC
Description of problem:
man bash says at Special Parameters:

       _      At shell startup, set to the absolute pathname used to invoke the shell or shell
              script being executed as passed in the environment  or  argument  list.   Subse‐
              quently,  expands to the last argument to the previous command, after expansion.
              Also set to the full pathname used to invoke each command executed and placed in
              the  environment  exported  to that command.  When checking mail, this parameter
              holds the name of the mail file currently being checked.

but in Fedora 28 and Rawhide, "$_" contains other values.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
cat > 'shelltest.sh' <<EOF
#! /bin/bash
echo "$_ $0" 

2. chmod a+x shelltest.sh
3. ./shelltest.sh

Actual results:
] ./shelltest.sh (on Fedora 28)
VERBOSE_STATE ./shelltest.sh (on Rawhide)

Expected results:
./shelltest.sh ./shelltest.sh (works for example on Fedora 27)                       

Additional info:

Comment 1 Till Maas 2019-04-25 20:18:39 UTC
still broken in bash-5.0.2-1.fc30

Comment 2 Ben Cotton 2020-04-30 22:06:04 UTC
This message is a reminder that Fedora 30 is nearing its end of life.
Fedora will stop maintaining and issuing updates for Fedora 30 on 2020-05-26.
It is Fedora's policy to close all bug reports from releases that are no longer
maintained. At that time this bug will be closed as EOL if it remains open with a
Fedora 'version' of '30'.

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, simply change the 'version' 
to a later Fedora version.

Thank you for reporting this issue and we are sorry that we were not 
able to fix it before Fedora 30 is end of life. If you would still like 
to see this bug fixed and are able to reproduce it against a later version 
of Fedora, you are encouraged  change the 'version' to a later Fedora 
version prior this bug is closed as described in the policy above.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events. Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

Comment 3 Ben Cotton 2020-05-26 15:04:16 UTC
Fedora 30 changed to end-of-life (EOL) status on 2020-05-26. Fedora 30 is
no longer maintained, which means that it will not receive any further
security or bug fix updates. As a result we are closing this bug.

If you can reproduce this bug against a currently maintained version of
Fedora please feel free to reopen this bug against that version. If you
are unable to reopen this bug, please file a new report against the
current release. If you experience problems, please add a comment to this

Thank you for reporting this bug and we are sorry it could not be fixed.

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