Package: bash Version: 3.2-4 Severity: normal Hi,
I've this script:
#!/bin/sh
cat <<__EOF
$(/bin/echo 'aa\\
b')
__EOF
cat <<__EOF
$(/bin/echo 'aa\
b')
__EOF
\<newline> is removed, but two backslahes aren't replaced by one, as I
expect it would happen is the backslash would be expanded.
% bash /tmp/skript
aa\\
b
aab
% dash /tmp/skript
aa\\
b
aa\
b
% zsh /tmp/skript
aa\\
b
aa\
b
And yes, the section 2.7.4 of the POSIX standard is somewhat unclear.
If no characters in word are quoted, all lines of the here-document
shall be expanded for parameter expansion, command substitution, and
arithmetic expansion. In this case, the backslash in the input behaves
as the backslash inside double-quotes (see Double-Quotes). However, the
double-quote character ( ' )' shall not be treated specially within a
here-document, except when the double-quote appears within "$()", "``",
or "${}".
Bye, Jörg.
-- System Information:
Debian Release: unstable/experimental
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Architecture: powerpc (ppc)
Kernel: Linux 2.6.25
Locale: LANG=C, LC_CTYPE=C (charmap=UTF-8) (ignored: LC_ALL set to de_DE.UTF-8)
Shell: /bin/sh linked to /bin/dash
Versions of packages bash depends on:
ii base-files 4.0.4 Debian base system miscellaneous f
ii debianutils 2.29 Miscellaneous utilities specific t
ii libc6 2.7-12 GNU C Library: Shared libraries
ii libncurses5 5.6+20080614-1 Shared libraries for terminal hand
Versions of packages bash recommends:
pn bash-completion <none> (no description available)
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