Update comments

Adding additional string inside makes it more safe

Signed-off-by: Teddysun <i@teddysun.com>
This commit is contained in:
Teddysun 2018-01-05 21:16:38 +09:00
parent b2b6aaab1c
commit fbb53a19b5
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GPG Key ID: 09BD4C080AD6C46D

16
bbr.sh
View File

@ -4,7 +4,7 @@
#
# System Required: CentOS 6+, Debian7+, Ubuntu12+
#
# Copyright (C) 2016-2017 Teddysun <i@teddysun.com>
# Copyright (C) 2016-2018 Teddysun <i@teddysun.com>
#
# URL: https://teddysun.com/489.html
#
@ -34,6 +34,8 @@ elif cat /proc/version | grep -Eqi "ubuntu"; then
release="ubuntu"
elif cat /proc/version | grep -Eqi "centos|red hat|redhat"; then
release="centos"
else
release=""
fi
get_latest_version() {
@ -85,7 +87,7 @@ getversion() {
}
centosversion() {
if [ "${release}" == "centos" ]; then
if [ x"${release}" == x"centos" ]; then
local code=$1
local version="$(getversion)"
local main_ver=${version%%.*}
@ -101,7 +103,7 @@ centosversion() {
check_bbr_status() {
local param=$(sysctl net.ipv4.tcp_available_congestion_control | awk '{print $3}')
if [[ "${param}" == "bbr" ]]; then
if [[ x"${param}" == x"bbr" ]]; then
return 0
else
return 1
@ -151,7 +153,7 @@ sysctl_config() {
}
install_config() {
if [[ "${release}" == "centos" ]]; then
if [[ x"${release}" == x"centos" ]]; then
if centosversion 6; then
if [ ! -f "/boot/grub/grub.conf" ]; then
echo -e "${red}Error:${plain} /boot/grub/grub.conf not found, please check it."
@ -165,7 +167,7 @@ install_config() {
fi
grub2-set-default 0
fi
elif [[ "${release}" == "debian" || "${release}" == "ubuntu" ]]; then
elif [[ x"${release}" == x"debian" || x"${release}" == x"ubuntu" ]]; then
/usr/sbin/update-grub
fi
}
@ -198,14 +200,14 @@ install_bbr() {
exit 0
fi
if [[ "${release}" == "centos" ]]; then
if [[ x"${release}" == x"centos" ]]; then
install_elrepo
yum --enablerepo=elrepo-kernel -y install kernel-ml kernel-ml-devel
if [ $? -ne 0 ]; then
echo -e "${red}Error:${plain} Install latest kernel failed, please check it."
exit 1
fi
elif [[ "${release}" == "debian" || "${release}" == "ubuntu" ]]; then
elif [[ x"${release}" == x"debian" || x"${release}" == x"ubuntu" ]]; then
[[ ! -e "/usr/bin/wget" ]] && apt-get -y update && apt-get -y install wget
get_latest_version
[ $? -ne 0 ] && echo -e "${red}Error:${plain} Get latest kernel version failed." && exit 1