Package: bash
Version: 4.3-7
Severity: minor
Dear Maintainer,
it is stated in manpage that duplicating RO file descriptor causes a
redirection error:
>>>
$ man 1 bash | grep -A17 'Duplicating File Descriptors$' | tail -n2
output (file descriptor 1) is used. If the digits in word do not
specify a file descriptor
open for output, a redirection error occurs. If word evaluates to -,
file descriptor n is
<<<
but it does not:
>>>
$ ( set -e ; exec 3< /dev/null ; exec 4>&3 ; echo OK )
OK
<<<
an error would be to write to the RO file descriptor:
>>>
$ ( set -e ; exec 3< /dev/null ; exec 4>&3 ; echo >&4 ; echo OK )
bash: echo: write error: Bad file descriptor
<<<
it is not a redirection error, but another one; I have checked two other
shells: dash and ksh, — neither of them raises any redirection error, then I
guess it is a documentation bug, and this sentence can be safely removed:
>>>
If the digits in word do not specify a file descriptor open for output, a
redirection error occurs.
<<<
-- System Information:
Debian Release: jessie/sid
APT prefers testing
APT policy: (990, 'testing'), (500, 'unstable'), (500, 'stable'), (1,
'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 3.14.2-ygrex-mac (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages bash depends on:
ii base-files 7.3
ii dash 0.5.7-4
ii debianutils 4.4
ii libc6 2.19-1
ii libtinfo5 5.9+20140118-1
Versions of packages bash recommends:
pn bash-completion <none>
Versions of packages bash suggests:
pn bash-doc <none>
-- Configuration Files:
/etc/bash.bashrc changed [not included]
-- no debconf information
--
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