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Message-ID: <Y3deaZ+QxLqtj1Pp@krava>
Date: Fri, 18 Nov 2022 11:28:57 +0100
From: Jiri Olsa <olsajiri@...il.com>
To: Tiezhu Yang <yangtiezhu@...ngson.cn>
Cc: Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Andrii Nakryiko <andrii@...nel.org>, bpf@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH bpf-next] samples: bpf: Use "grep -E" instead of "egrep"
On Fri, Nov 18, 2022 at 05:50:01PM +0800, Tiezhu Yang wrote:
> The latest version of grep claims the egrep is now obsolete so the build
> now contains warnings that look like:
> egrep: warning: egrep is obsolescent; using grep -E
> fix this up by moving the related file to use "grep -E" instead.
>
> sed -i "s/egrep/grep -E/g" `grep egrep -rwl samples/bpf`
>
> Here are the steps to install the latest grep:
>
> wget http://ftp.gnu.org/gnu/grep/grep-3.8.tar.gz
> tar xf grep-3.8.tar.gz
> cd grep-3.8 && ./configure && make
> sudo make install
> export PATH=/usr/local/bin:$PATH
>
> Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.cn>
Acked-by: Jiri Olsa <jolsa@...nel.org>
jirka
> ---
> samples/bpf/test_cgrp2_tc.sh | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/samples/bpf/test_cgrp2_tc.sh b/samples/bpf/test_cgrp2_tc.sh
> index 12faf58..395573b 100755
> --- a/samples/bpf/test_cgrp2_tc.sh
> +++ b/samples/bpf/test_cgrp2_tc.sh
> @@ -115,7 +115,7 @@ do_exit() {
> if [ "$DEBUG" == "yes" ] && [ "$MODE" != 'cleanuponly' ]
> then
> echo "------ DEBUG ------"
> - echo "mount: "; mount | egrep '(cgroup2|bpf)'; echo
> + echo "mount: "; mount | grep -E '(cgroup2|bpf)'; echo
> echo "$CGRP2_TC_LEAF: "; ls -l $CGRP2_TC_LEAF; echo
> if [ -d "$BPF_FS_TC_SHARE" ]
> then
> --
> 2.1.0
>
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