To: 1053394@xxxxxxxxxxxxxxx, dash@xxxxxxxxxxxxxxx
Hello,
https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_03_01
says:
2.3.1 Alias Substitution
When used as specified by this volume of POSIX.1-2017, alias definitions
shall not be inherited by separate invocations of the shell or by the
utility execution environments invoked by the shell.
So a subshell shall have no knowledge about the aliases from the
supershell, and backticks start a subshell.
These programs
#!/bin/bash
alias wslpath=echo
find `wslpath /tmp`
and
#!/bin/dash
alias wslpath=echo
find `wslpath /tmp`
produce different results (bash 5.2.15-3.fc38, dash 0.5.12-1.fc38) when
executed on a WSL2 system. The former program shows the content of the
current directory, the latter program shows the content of /tmp .
Moreover, I filled this initially towards the Debian Bug tracking system
(cf. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1053394) , and
was then told to check http://gondor.apana.org.au/~herbert/dash/ .
Please include in the repository
https://git.kernel.org/pub/scm/utils/dash/dash.git links to
http://gondor.apana.org.au/~herbert/dash/ and dash@xxxxxxxxxxxxxxx , for
instance in src/dash.1, so that it is documented where to report
problems in dash.
Kind regards
Dilyan
