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Bug 1983092 - Unexpected behaviour of default tab completion
Summary: Unexpected behaviour of default tab completion
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: bash-completion
Version: 8.4
Hardware: All
OS: Linux
low
low
Target Milestone: beta
: ---
Assignee: Siteshwar Vashisht
QA Contact: qe-baseos-daemons
URL:
Whiteboard:
: 1982830 (view as bug list)
Depends On:
Blocks: 2225355
TreeView+ depends on / blocked
 
Reported: 2021-07-16 13:48 UTC by Paulo Andrade
Modified: 2023-09-20 19:33 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 2225355 (view as bug list)
Environment:
Last Closed: 2023-09-20 19:33:48 UTC
Type: Bug
Target Upstream Version:
Embargoed:
pm-rhel: mirror+


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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   RHEL-5648 0 None Migrated None 2023-09-20 19:33:46 UTC

Description Paulo Andrade 2021-07-16 13:48:28 UTC
Sample reproducer environment:

"""
# cat > input.file<<EOF
a
b
c
d
EOF

# for i in $(cat input.<TAB>
"""

  In rhel 7 it would correct complete 'input.file'.

  In rhel 8 it just bells and does not auto complete. It works if adding a backslash before the dollar sign, for example:

# for i in \$(cat input.<TAB>

or if adding a newline:

# for f in
$(cat input.<TAB>

  The easiest workaround is to not let it generate an autocompletion for 'for', and have in .bashrc or similar file the command:

complete -o default for

but this is just working around what appears to be a bug, as when spawning the subshell to generate the auto completion, it is actually attempting to autocomplete the string '$(cat input.' instead of 'input.'

Another possible workaround, but really brute force would be to have:

shopt -u progcomp

in some initialization file, but that would not really bring compatibility with rhel7 behavior. Still, it would work usages of:

$(cat input.

other than just as a 'for' argument.

Comment 1 Siteshwar Vashisht 2021-10-14 10:27:56 UTC
*** Bug 1982830 has been marked as a duplicate of this bug. ***

Comment 3 Siteshwar Vashisht 2021-10-15 09:09:54 UTC
https://github.com/scop/bash-completion/issues/630

Comment 10 RHEL Program Management 2023-09-20 19:31:58 UTC
Issue migration from Bugzilla to Jira is in process at this time. This will be the last message in Jira copied from the Bugzilla bug.

Comment 11 RHEL Program Management 2023-09-20 19:33:48 UTC
This BZ has been automatically migrated to the issues.redhat.com Red Hat Issue Tracker. All future work related to this report will be managed there.

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