Shell – 大海

Shell / 脚本

9 min
3 年
44 words

shell脚本5.Shell输入和输出功能

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Shell / 脚本

13 min
3 年
61 words

shell脚本4.脚本执行

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Shell / 脚本

125 min
3 年
624 words

大型脚本案例

# 需求描述：      
1、实现一个脚本工具，该脚提供类似supervisor功能，可以对进程进行管理     
2、一键查看所有进程运行状态     
3、单个或批量启动进程，单个或批量停止进程       
4、提供进程分组功能，可以按组查看进程运行状态，可以按组启动或停止组内所有进程  




# 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     

[nginx]     
description="Web Server 1"      
program name=tail       
parameter=-f /root/shell/test.conf
```

# 脚本代码：
```
#!/bin/bash
#
#=============================================
#Author:            Sea Shi
#Chat:              351953026
#Date:              2020-03-11
#FileName:          app_status.sh
#URL:               http://www.alltek.com
#Description:       The Stduy of Script
#Copyright(c):      2020 All right reserved
#=============================================

HOME_DIR="/usr/local/checkserver"
CONFIG_FILE="process.cfg"
this_pid=$$

function get_all_group
{
	G_LIST=`sed -n '/\[GROUP_LIST\]/,/\[.*\]/p' $HOME_DIR/$CONFIG_FILE | egrep -v "(^$|\[.*\])"`
	echo "$G_LIST"
}
#
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
}
#
function get_process_pid_by_name
{
	if [ $# -ne 1 ];then
		return 1
	else
		pids=`ps -ef | grep $1 | grep -v grep | grep -v $0 | awk '{print $2}'`
		echo $pids
	fi
}
#
function get_process_info_by_pid
{
	if [ `ps -ef | awk -v pid=$1 '$2==pid{print }' | wc -l` -eq 1 ];then
		pro_status="RUNNING"
	else
		pro_status="STOPPED"
	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
{
	for gn in `get_all_group`;do
		if [ $gn == $1 ];then
			return
		fi
	done
	echo -e "\033[37mGroupName $1 is not in process.cfg!\033[0m"
	exit 9  
}

function is_process_in_config
{
	for pn in `get_all_process`;do
		if [ $pn == $1 ];then
			return
		fi
	done
	echo -e "Process \033[1;5;37m$1 \033[0m is not in process.cfg!"
	return 2
}


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
		break 
	fi
}


function get_group_by_process_name
{
	for gn in `get_all_group`;do
		for pn in `get_all_process_by_group $gn`;do
			if [ $pn == $1 ];then
				echo "$gn"
			fi
		done
	done
}

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`
		get_process_info_by_pid $pids
		for pid in $pids;do
			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 "%-16s%-10s%-10s%-8s%-6s%-10s%-15s\n",p_name,g_name,p_status,p_pid,p_cpu,p_mem,p_start_time}'
		done
	else
		awk -v p_name=$1 -v g_name=$2 'BEGIN{printf "%-16s%-10s%-10s%-8s%-6s%-10s%-15s\n",p_name,g_name,"STOPPED","NULL","NULL","NULL","NULL"}'
	fi
}

function title_format_print
{

	awk 'BEGIN{printf "%-16s%-10s%-10s%-8s%-6s%-10s%-15s\n","ProcessName-----","GroupName-","Status----","PID-----","CPU---","MEMORY----","StartTime------"}'
}


if [ ! -e $HOME_DIR/$CONFIG_FILE ];then
    echo "file  process.cfg is not exsit."
    exit 1
fi

title_format_print
if  [ $# -gt 0 ] ;then 
	if [ "$1" == "-g" ];then
		shift
		for gn in $@;do
			for pn in `get_all_process_by_group $gn`;do
				if [ $? -eq 0 ];then
					is_process_in_config $pn  &&format_print $pn $gn
				else
					echo -e "GroupName \033[1;5;37m$gn\033[0m is not in Process.cfg"
					break
						
				fi
			done
		done
	else
		for pn in $@ ; do
			gn=`get_group_by_process_name $pn`
			is_process_in_config $pn  && format_print $pn $gn
		done
	fi
else
	for pn in `get_all_process`;do
		gn=`get_group_by_process_name $pn`
		is_process_in_config $pn && format_print $pn $gn || echo -e "ProcessName \033[1;5;36m$pn\033[0m is not in Process.cfg!"
	done
fi
```

Shell / 脚本

30 min
3 年
149 words

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Shell / 脚本

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17 words

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Shell / 脚本

7 min
3 年
35 words

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30	设置黑色前景
31	设置红色前景
32	设置绿色前景
33	设置棕色前景
34	设置蓝色前景
35	设置紫色前景
36	设置青色前景
37	设置白色前景

40	设置黑色背景
41	设置红色背景
42	设置绿色背景
43	设置棕色背景
44	设置蓝色背景
45	设置紫色背景
46	设置青色背景
47	设置白色背景