- 查看CPU占用率高的进程
#!/bin/bash
TOPK={{topk}}
SECS={{samplingTime}}
INTERVAL={{interval}}
STEPS=$(( $SECS / $INTERVAL ))
TEMP_FILE_PREFIX="/tmp/tat_public_cpu_usage"
echo Watching CPU usage...
for((i=0;i<$STEPS;i++))
do
ps -eocomm,pcpu | tail -n +2 >> $TEMP_FILE_PREFIX.$$
sleep $INTERVAL
done
echo
echo CPU eaters :
cat $TEMP_FILE_PREFIX.$$ | \
awk '
{ process[$1]+=$2;}
END{
for(i in process) {
printf("%-20s %s\n",i, process[i]) ;
}
}' | sort -nrk 2 | head -n $TOPK
rm $TEMP_FILE_PREFIX.$$|
参数名
|
参数值
|
描述
|
|---|
|
topk
|
|
前k个进程
|
|
samplingTime
|
|
采样时间, 单位秒
|
|
interval
|
|
采样间隔时间, 单位秒
|
- 查看目录占用磁盘空间大小
#!/bin/bash
du -sh {{directory}}
|
参数名
|
参数值
|
描述
|
|---|
|
directory
|
|
目标目录
|
- 查看TAT agent版本信息
#!/bin/bash
/usr/local/qcloud/tat_agent/tat_agent --version
- 显示 linux 内核版本信息
#!/bin/bash
uname -a
- 显示主机名
#!/bin/bash
hostname
- 显示僵尸进程
#!/bin/bash
processes=$(ps ax -o user,pid,ppid,pgid,args,stat,start,time)
zombies=$(echo -e "${processes}" | grep -E "\s(Z|z|Z.*)\s")
if [ $? == 1 ]; then
echo "no zombie processes exists on machine"
else
echo -e "${processes}" | head -1
echo "$zombies"
fi
-
批量在Linux实例安装或卸载yum/apt包
#!/bin/bash
function configurePackages() {
installer=$1
action=$2
packageName=$3
if [ "$installer" = "yum" ]; then
if [ "$action" = "install" ]; then
yum install -y $packageName
if [ $? -ne 0 ]; then
echo "Package install failed. Please check your command"
exit 1
fi
elif [ "$action" = "uninstall" ]; then
yum remove -y $packageName
if [ $? -ne 0 ]; then
echo "Package uninstall failed. Please check your command"
exit 1
fi
else
echo "Package command must be install or uninstall"
exit 1
fi
elif [ "$installer" = "apt-get" ]; then
if [ "$action" = "install" ]; then
apt-get -y install $packageName
if [ $? -ne 0 ]; then
echo "Package install failed. Please check your command"
exit 1
fi
elif [ "$action" = "uninstall" ]; then
apt-get -y remove $packageName
if [ $? -ne 0 ]; then
echo "Package uninstall failed. Please check your command"
exit 1
fi
else
echo "Package command must be install or uninstall"
exit 1
fi
else
echo "Unknown package installer. Only support yum/apt-get"
exit 1
fi
}
configurePackages {{installer}} {{action}} {{packageName}}|
参数名
|
参数值
|
描述
|
|---|
|
installer
|
apt-get
|
包管理器
|
|
action
|
install
|
安装或卸载 package
|
|
packageName
|
|
yum/apt-get安装的包名
|
- 批量在Linux实例清理磁盘
#!/bin/bash
function deletefiles() {
if [ ! -d $2 ]; then
echo "The specified directory("$2") is not exist."
return
fi
expiredTimeUnit=${1: -1}
expiredTimeValue=${1:0:-1}
if [ "$expiredTimeUnit" = "d" ]; then
expiredTime=$(($expiredTimeValue * 24 * 60 * 60))
elif [ "$expiredTimeUnit" = "h" ]; then
expiredTime=$(($expiredTimeValue * 60 * 60))
elif [ "$expiredTimeUnit" = "m" ]; then
expiredTime=$(($expiredTimeValue * 60))
else
echo "The unit("$expiredTimeUnit") of file age is not supported."
return
fi
for file in $(find $2 -type f -name "$3"); do
local currentDate=$(date +%s)
local modifyDate=$(stat -c %Y $file)
local existTime=$(($currentDate - $modifyDate))
if [ $existTime -gt $expiredTime ]; then
echo "File cleaning succeeded,path:"$file"."
rm -f $file
fi
done
}
deletefiles {{delayTime}} {{filePath}} "{{matchPattern}}"
|
参数名
|
参数值
|
描述
|
|---|
|
delayTime
|
7d
|
文件的有效时间。如 7d（代表7天），1h（代表1小时），5m（代表5分钟），默认是7d
|
|
filePath
|
|
清理文件路径。如：/root/log/
|
|
matchPattern
|
|
清理文件匹配格式，如 *.log。 支持正则匹配
|
