Public bug reported:
(GNU bash 4.3.46)
(ubuntu 16.04 LTS)
Consider you have out.txt on current dir.
-------
>exec 123456789012>out.txt
bash: exec: 123456789012: not found
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exec command prints indicated error for large numbers that is supposed to use
as a fd but redirects /proc/$$/fd/1 to out.txt silently.
Additionally,
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>exec 1234567890>out.txt
bash: 123456789: Bad file descriptor
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For large numbers but not that large (I don't inspect the limits!), exec
command rejects fd number but silently adds a new fd to current bash process.
In every execution of the command, bash adds a new fd to itself again and again.
** Affects: bash (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1952584
Title:
bash exec command unwanted behaviour
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