Public bug reported:
If following command is run
(sleep 1 & sleep 1 & time wait); date
bash is supposed to run two commands in parallel, wait for both to
complete and the run third command.
However, if current environment has following alias configured
alias time='/usr/bin/time -v'
then the above command will fail with
/usr/bin/time: cannot run wait: No such file or directory
and the final command is run without a wait.
Bash already has "command" to force interpretation as system command and
"builtin" to force interpretation as built-in command. However bash is
missing "keyword" to force interpretation as keyword.
One should be able to write
(sleep 1 & sleep 1 & keyword time wait); date
to force time to be interpreted as bash keyword.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: bash 4.4.18-2ubuntu1.2
ProcVersionSignature: Ubuntu 5.3.0-51.44~18.04.2-lowlatency 5.3.18
Uname: Linux 5.3.0-51-lowlatency x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
CurrentDesktop: MATE
Date: Fri May 8 15:48:23 2020
EcryptfsInUse: Yes
InstallationDate: Installed on 2019-01-05 (488 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725)
SourcePackage: bash
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: bash (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug bionic
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to bash in Ubuntu.
https://bugs.launchpad.net/bugs/1877571
Title:
bash is missing feature to use keyword if identically named alias
exists
Status in bash package in Ubuntu:
New
Bug description:
If following command is run
(sleep 1 & sleep 1 & time wait); date
bash is supposed to run two commands in parallel, wait for both to
complete and the run third command.
However, if current environment has following alias configured
alias time='/usr/bin/time -v'
then the above command will fail with
/usr/bin/time: cannot run wait: No such file or directory
and the final command is run without a wait.
Bash already has "command" to force interpretation as system command
and "builtin" to force interpretation as built-in command. However
bash is missing "keyword" to force interpretation as keyword.
One should be able to write
(sleep 1 & sleep 1 & keyword time wait); date
to force time to be interpreted as bash keyword.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: bash 4.4.18-2ubuntu1.2
ProcVersionSignature: Ubuntu 5.3.0-51.44~18.04.2-lowlatency 5.3.18
Uname: Linux 5.3.0-51-lowlatency x86_64
ApportVersion: 2.20.9-0ubuntu7.14
Architecture: amd64
CurrentDesktop: MATE
Date: Fri May 8 15:48:23 2020
EcryptfsInUse: Yes
InstallationDate: Installed on 2019-01-05 (488 days ago)
InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64
(20180725)
SourcePackage: bash
UpgradeStatus: No upgrade log present (probably fresh install)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/bash/+bug/1877571/+subscriptions
--
Mailing list: https://launchpad.net/~touch-packages
Post to : touch-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~touch-packages
More help : https://help.launchpad.net/ListHelp
