Bug 5323 - at now and batch commands
at now and batch commands
Product: Red Hat Linux
Classification: Retired
Component: at (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: Bill Nottingham
Depends On:
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Reported: 1999-09-23 08:41 EDT by paulh
Modified: 2014-03-16 22:10 EDT (History)
1 user (show)

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Fixed In Version:
Doc Type: Bug Fix
Doc Text:
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Clone Of:
Last Closed: 2000-02-28 11:35:01 EST
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RHEL 7.3 requirements from Atomic Host:
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Description paulh 1999-09-23 08:41:28 EDT
The at now command does not work.

    echo "date" | at now

will never schedule execution. It seems that the job is
scheduled a few seconds *before* the current time.

As a consequence the 'batch' command does not work as it is
a script that executes at now.

Interestingly I have seen this same bug in IRIX,CLIX,AIX,
etc. The solution is to add 1 or 2 minutes depending on
the version of UNIX. This is because some at commands only
schedule to the nearest minute boundary viz

    echo "date" | at now + 2 minutes
Comment 1 Bernhard Rosenkraenzer 2000-02-16 09:07:59 EST
Still happens in 6.2b3 - "now" apparently maps to `date  +%H:%M`, so seconds are
lost -> scheduled before current time.
Comment 2 Bill Nottingham 2000-02-16 15:42:59 EST
Hmm.. it works OK for me here; at now casues
things to be run immediately.

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