拆分脚本功能,抽象函数
- 1、function get_all_group 返回进程组列表字符串
- 2、function get_all_process 返回进程名列表字符串"nginx httpd mysql datanode"
- 3、function get_process_info 返回进程详细信息列表字符串,详细信息包括:运行状态、PID、CPU、MEM、启动时间 注:该函数可以接收一个参数,参数为进程名称
- 4、function get_all_process_by_group 返回进程组内的所有进程名称列表字符串
配置文件
process.cfg
[GROUP_LIST] WEB DB HADOOP YARN [WEB] nginx httpd [DB] mysql postgresql oracle [HADOOP] datanode namenode journalnode [YARN] resourcemanager nodemanager
功能函数代码 1 (获取进程组列表)
sed -n '/[GROUP_LIST]/,/[.*]/p' process.cfg | grep -v "^$" | grep -v "[.*]"
使用egrep 优化
sed -n '/[GROUP_LIST]/,/[.*]/p' process.cfg | egrep -v "(^$|[.*])"
封装函数
app_status.sh
#!/bin/bash # # Func: Get Process Status In process.cfg # Define Variables HOME_DIR="/home/roo/Desktop/shell_code/day9" CONFIG_FILE="process.cfg" # 进程本身的pid this_pid=$$ # 获取所有的组 function get_all_group { G_LIST=$(sed -n '/[GROUP_LIST]/,/[.*]/p' $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])") echo $G_LIST } for g in `get_all_group`;do echo $g done
执行脚本
sh app_status.sh
功能函数代码 2 (获取每个进程组中的进程)
app_status.sh
#!/bin/bash # # Func: Get Process Status In process.cfg # Define Variables HOME_DIR="/home/roo/Desktop/shell_code/day9" CONFIG_FILE="process.cfg" # 进程本身的pid this_pid=$$ # 获取所有的组 function get_all_group { G_LIST=$(sed -n '/[GROUP_LIST]/,/[.*]/p' $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])") echo $G_LIST } #for g in `get_all_group`;do # echo $g #done function get_all_process { for g in `get_all_group` do P_LIST=`sed -n "/[$g]/,/[.*]/p" $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])"` echo $P_LIST done } echo `get_all_process`
执行脚本
sh app_status.sh
功能函数代码 3 (获取每个进程组中的进程、返回进程详细信息列表字符串,详细信息包括:运行状态、PID、CPU、MEM、启动时间)
ps -aux | grep nginx
第二列是进程的id第三列是cpu使用率,第四列是内存使用率
功能拆分1 :
get_process_pid_by_name 根据进程的名字获取进程 id
#!/bin/bash # # Func: Get Process Status In process.cfg # Define Variables HOME_DIR="/home/roo/Desktop/shell_code/day9" CONFIG_FILE="process.cfg" # 进程本身的pid this_pid=$$ # 获取所有的组 function get_all_group { G_LIST=$(sed -n '/[GROUP_LIST]/,/[.*]/p' $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])") echo $G_LIST } #for g in `get_all_group`;do # echo $g #done function get_all_process { for g in `get_all_group` do P_LIST=`sed -n "/[$g]/,/[.*]/p" $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])"` echo $P_LIST done } this_pid=$$ function get_process_pid_by_name # 获取进程的pid { if [ $# -ne 1 ];then return 1 else #pids=`ps -ef | grep $1 | grep -v grep | grep -v $this_pid |grep -v $0| awk '{print $2}'` pids=`ps -ef | grep $1 | grep -v grep | grep -v $0| awk '{print $2}'` echo $pids fi } get_process_pid_by_name $1
执行脚本
sh app_status.sh nginx
功能拆分2 :
get_process_info_by_pid 根据进程 id 获取进程详细信息
#!/bin/bash # # Func: Get Process Status In process.cfg # Define Variables HOME_DIR="/home/roo/Desktop/shell_code/day9" CONFIG_FILE="process.cfg" # 进程本身的pid this_pid=$$ # 获取所有的组 function get_all_group { G_LIST=$(sed -n '/[GROUP_LIST]/,/[.*]/p' $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])") echo $G_LIST } #for g in `get_all_group`;do # echo $g #done function get_all_process { for g in `get_all_group` do P_LIST=`sed -n "/[$g]/,/[.*]/p" $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])"` echo $P_LIST done } this_pid=$$ function get_process_pid_by_name # 获取进程的pid { if [ $# -ne 1 ];then return 1 else #pids=`ps -ef | grep $1 | grep -v grep | grep -v $this_pid |grep -v $0| awk '{print $2}'` pids=`ps -ef | grep $1 | grep -v grep | grep -v $0| awk '{print $2}'` echo $pids fi } function get_process_info_by_pid # 获取进行信息 { # awk 中引入一个变量 if [ `ps -ef | awk -v pid=$1 '$2==pid{print}' | wc -l` -eq 1 ];then pro_status="RUNNING" else pro_status="STOPED" fi pro_cpu=`ps aux | awk -v pid=$1 '$2==pid{print $3}'` pro_mem=`ps aux | awk -v pid=$1 '$2==pid{print $4}'` pro_start_time=`ps -p $1 -o lstart | grep -v STARTED` } get_process_info_by_pid $1 echo "$pro_status $pro_cpu $pro_mem $pro_start_time"
运行脚本
sh app_status.sh 1229
功能函数代码 4
is_group_in_config: 判断输入的组是否在配置文件中
get_all_process_by_group: 根据输入的组输出当前组下的进程名
#!/bin/bash # # Func: Get Process Status In process.cfg # Define Variables HOME_DIR="/home/roo/Desktop/shell_code/day9" CONFIG_FILE="process.cfg" # 进程本身的pid this_pid=$$ # 获取所有的组 function get_all_group { G_LIST=$(sed -n '/[GROUP_LIST]/,/[.*]/p' $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])") echo $G_LIST } #for g in `get_all_group`;do # echo $g #done function get_all_process { for g in `get_all_group` do P_LIST=`sed -n "/[$g]/,/[.*]/p" $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])"` echo $P_LIST done } this_pid=$$ function get_process_pid_by_name # 获取进程的pid { if [ $# -ne 1 ];then return 1 else #pids=`ps -ef | grep $1 | grep -v grep | grep -v $this_pid |grep -v $0| awk '{print $2}'` pids=`ps -ef | grep $1 | grep -v grep | grep -v $0| awk '{print $2}'` echo $pids fi } function get_process_info_by_pid # 获取进行信息 { # awk 中引入一个变量 if [ `ps -ef | awk -v pid=$1 '$2==pid{print}' | wc -l` -eq 1 ];then pro_status="RUNNING" else pro_status="STOPED" fi pro_cpu=`ps aux | awk -v pid=$1 '$2==pid{print $3}'` pro_mem=`ps aux | awk -v pid=$1 '$2==pid{print $4}'` pro_start_time=`ps -p $1 -o lstart | grep -v STARTED` } function is_group_in_config { # 如果遍历不存在就返回1 for gn in `get_all_group`;do if [ "$gn" == "$1" ];then return fi done return 1 } function get_all_process_by_group { is_group_in_config $1 if [ $? -eq 0 ];then p_list=`sed -n "/[$1]/,/[.*]/p" $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|^#|[.*])"` echo $p_list else echo "GroupName $1 is not in process.cfg" fi } is_group_in_config $1 && echo exist || echo not exist get_all_process_by_group $1
执行脚本
sh app_status.sh WEB
程序主流程设计及代码实现
app_status.sh 执行有三种情况
- 1、无参数 列出配置文件中所有进程的运行信息
- 2、-g GroupName 列出GroupName组内的所有进程
- 3、process_name1 列出指定进程的运行信息
function get_all_group 说明:该函数无需输入任何参数:返回配置文件 process.cfg中所有的组信息,例如web,db等 function get_all_process 说明:该函数无需输入任何参数:返回配置文件 process.cfg中所有的进程信息 function get_process_pid_by_name 说明:该函数接收一个参数,参数为进程名称:返回值是一个PID的列表,可能有一个PID,也可能有多个 function get_process_info_by_pid 说明:该函数接收一个参数,参数为进程PID;返回值是一个进程运行信息的列表,列表包含运行状态:CPU占用率、内存占用率、进程运行时间 function is_group_in_config 说明 :该函数接收一个参数,参数为组的名称;返回值是0或1,0代表该组在配置文件中,1代表该组不在配置文件中 function get_all_process_by_group 说明:该函数接收一个参数,参数为组名称:返回值是对应组内的所有进程名称列表 function get_group_by_process_name 说明:该函数接收一个参数,参数是一个进程名称:返回值是一个组名 function format_print 说明:该函数接收两个参数,第一个参数为process_name,第二个参数为组名称 返回值,是针对每一个进程PID的运行信息 function is_process_in_config 说明:该函数接收一个参数,参数为进程名称;返回值是0或1,0代表该进程在配置文件中,1代表进程不在配置文件中
#!/bin/bash # # Func: Get Process Status In process.cfg # Define Variables HOME_DIR=""/home/roo/Desktop/shell_code/day9"" CONFIG_FILE="process.cfg" # 进程本身的pid this_pid=$$ # 获取所有的组 function get_all_group { G_LIST=$(sed -n '/[GROUP_LIST]/,/[.*]/p' $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])") echo $G_LIST } #for g in `get_all_group`;do # echo $g #done # 获取所有进程 function get_all_process { for g in `get_all_group` do P_LIST=`sed -n "/[$g]/,/[.*]/p" $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|[.*])"` echo $P_LIST done } # 通过pid获取进程名称 function get_process_pid_by_name { if [ $# -ne 1 ];then return 1 else #pids=`ps -ef | grep $1 | grep -v grep | grep -v $this_pid |grep -v $0| awk '{print $2}'` pids=`ps -ef | grep $1 | grep -v grep | grep -v $0| awk '{print $2}'` echo $pids fi } # 通过pid 获取进程信息 function get_process_info_by_pid { # awk 中引入一个变量 if [ `ps -ef | awk -v pid=$1 '$2==pid{print}' | wc -l` -eq 1 ];then pro_status="RUNNING" else pro_status="STOPED" fi pro_cpu=`ps aux | awk -v pid=$1 '$2==pid{print $3}'` pro_mem=`ps aux | awk -v pid=$1 '$2==pid{print $4}'` pro_start_time=`ps -p $1 -o lstart | grep -v STARTED` #echo "pro_status=$pro_status" #echo "pro_cpu=$pro_cpu" #echo "pro_mem=$pro_mem" #echo "pro_start_time=$pro_start_time" } # 判断输入的组是否在配置文件中 function is_group_in_config { # 如果遍历不存在就返回1 for gn in `get_all_group`;do if [ "$gn" == "$1" ];then return 0 fi done echo "Group $1 is not in process.cfg" return 1 } # 判断进程是否在配置中 function is_process_in_config { for pn in `get_all_process`;do if [ $pn == $1 ];then return fi done echo "Process $1 is not in process.cfg" return 1 } # 通过组名获取组下所有的进程 function get_all_process_by_group { # 判断输入的组名是否在group中 is_group_in_config $1 if [ $? -eq 0 ];then p_list=`sed -n "/[$1]/,/[.*]/p" $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|^#|[.*])"` echo $p_list else echo "GroupName $1 is not in process.cfg" fi } # 通过进程名称获取所在的组 function get_group_by_process_name { for gn in `get_all_group`;do for pn in `get_all_process_by_group $gn`;do #echo "pn=$pn" if [ $pn == $1 ];then echo "$gn" fi done done } #if [ ! -e $HOME_DIR/$CONFIG_FILE ];then # echo "$CONFIG_FILE is not exists..please check.." #fi #is_group_in_config $1 && echo "exists" || echo "not exists" #get_all_process_by_group $1 function format_print { ps -ef | grep $1 | grep -v grep | grep -v $this_pid &> /dev/null if [ $? -eq 0 ];then pids=`get_process_pid_by_name $1` #echo "pids=$pids" for pid in $pids;do get_process_info_by_pid $pid awk -v p_name=$1 -v g_name=$2 -v p_status=$pro_status -v p_pid=$pid -v p_cpu=$pro_cpu -v p_mem=$pro_mem -v p_start_time="$pro_start_time" 'BEGIN{printf "%-20s%-20s%-20s%-20s%-20s%-20s%-20s ",p_name,g_name,p_status,p_pid,p_cpu,p_mem,p_start_time}' # -v 定义的参数需要用双引号引起来"",否则会报错 awk: fatal: cannot open file `15' for reading (No such file or directory),主要是因为 p_start_time 中间有空格,需要""双引号引起来 #awk -v p_name="$1" -v g_name="$2" -v p_status="$pro_status" -v p_pid="$pid" -v p_cpu="$pro_cpu" -v p_mem="$pro_mem" -v p_start_time="$pro_start_time" 'BEGIN{printf "%-20s%-20s%-20s%-20s%-20s%-20s%-20s ",p_name,g_name,p_pid,p_status,p_cpu,p_mem,p_start_time}' done else awk -v p_name=$1 -v g_name=$2 'BEGIN{printf "%-20s%-20s%-20s%-20s%-20s%-20s%-20s ",p_name,g_name,"NULL","Stopped","NULL","NULL","NULL"}' fi } # 打印头信息 awk 'BEGIN{printf "%-20s%-20s%-20s%-20s%-20s%-20s%-20s ","ProcessName---","GroupName---","Status---","Pid---","CPU---","MEMORY---","StartTime---"}' if [ $# -gt 0 ];then # 传递的是组 if [ "$1" == "-g" ];then shift # 遍历传递参数的组 for gn in $@;do # 组名是否在配置文件中, 执行不成功才会 continue 跳过 is_group_in_config $gn || continue for pn in `get_all_process_by_group $gn`;do is_process_in_config $pn && format_print $pn $gn done done # 传递的是进程名 else for pn in $@;do gn=`get_group_by_process_name $pn` is_process_in_config $pn && format_print $pn $gn done fi else # 不添加参数,打印所有进程 for pn in `get_all_process`;do gn=`get_group_by_process_name $pn` #echo "gn=$gn, pn=$pn" is_process_in_config $pn if [ $? -eq 0 ];then #echo "format print" format_print $pn $gn fi done fi #format_print nginx WEB #group_name=`get_group_by_process_name $1` #echo $group_name
执行脚本 输出所有组内的进程信息
sh app_status1.sh
执行脚本 输出指定组内的进程信息
sh app_status1.sh -g WEB
输出指定组内单个进程的信息
sh app_status1.sh -g WEB DB