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[ Upstream commit 47efbac9b768553331b9459743a29861e0acd797 ] Use require_command() so that the test will return SKIP (4) when a required command is not present. Before: # ./traceroute.sh SKIP: Could not run IPV6 test without traceroute6 SKIP: Could not run IPV4 test without traceroute $ echo $? 0 After: # ./traceroute.sh TEST: traceroute6 not installed [SKIP] $ echo $? 4 Reviewed-by: Petr Machata <petrm@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Link: https://patch.msgid.link/20250908073238.119240-6-idosch@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.