Bob Proulx wrote:
Heiner Steven wrote:
[...]
I have two different systems (Debina and SuSE), both with
coreutils version 5.2.1 installed. The "uniq" commands on both
system print the same version number (5.2.1), but support different
command line options. In particular the first system's "uniq" supports
the "-W" option, the second system's "uniq" does not.
[...]
I thought that the "coreutils" version number described a set of
commands together with their features and bugs, new features
causing a new version number.
And for the upstream project that is true. Taken in isolation of any
changes to the upstream the version number is always modified when new
versions are released and so would uniquely describe a full set of
features. But distros do often make modifications to upstream sources
for their own purposes.
So the maintainers of a distribution should provide ways
for users to find out, if they changed a base coreutils utility.
Perhaps "$utility --version" could list the patches applied.
But I understand that this is specific to a distribution.
[...tips on how to check for valid utility options...]
Bob, thanks for the fast response.
Heiner
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