如何不耍流氓的做运维之-SHELL脚本

#!/bin/bash
#######################################################
# $Name:         shell_template.sh
# $Version:      v1.0
# $Function:     Backup MySQL Databases Template Script
# $Author:       Jason Zhao
# $organization: https://www.unixhot.com/
# $Create Date:  2016-08-27
# $Description:  You know what i mean,hehe
#######################################################

# Shell Env
SHELL_NAME="shell_template.sh"
SHELL_DIR="/opt/shell"
SHELL_LOG="${SHELL_DIR}/${SHELL_NAME}.log"
LOCK_FILE="/tmp/${SHELL_NAME}.lock"

#Write Log 
shell_log(){
    LOG_INFO=$1
    echo "$(date "+%Y-%m-%d") $(date "+%H-%M-%S") : ${SHELL_NAME} : ${LOG_INFO}" >> ${SHELL_LOG}
}

# Shell Usage
shell_usage(){
    echo $"Usage: $0 {backup}"
}

shell_lock(){
    touch ${LOCK_FILE}
}

shell_unlock(){
    rm -f ${LOCK_FILE}
}

# Backup MySQL All Database with mysqldump or innobackupex
mysql_backup(){
    if [ -f "$LOCK_FILE" ];then
        shell_log "${SHELL_NAME} is running"
        echo "${SHELL_NAME}" is running && exit
    fi
    shell_log "mysql backup start"
    shell_lock
    sleep 10
    shell_log "mysql backup stop"
    shell_unlock
}

# Main Function
main(){
    case $1 in
        backup)
            mysql_backup
            ;;
        *)
            shell_usage;
    esac
}

#Exec
main $1

 4

 分享 2016-08-26

     

2 个评论

Luolired

写下我自己的模块函数，直接复制可用：
举一个例子：

#!/bin/bash
#***************************************************************************
# * 
# * @file:pid_run.sh 
# * @author:Luolired 
# * @date:2016-01-05 16:26 
# * @version 0.5
# * @description: 节点提升为master调用的脚本
# * 1.脚本标准化 notify_master "/etc/keepalived/scripts/pid_run.sh"
# * @Copyright (c) 007ka all right reserved 
# * @updatelog: 
# * 1.更新程序标准化逻辑性
# * 2.优化日志的输出
# * 3.增加同步锁状态标识，用以区分同步开启
# * 4.增加Keepalived主备切换功能开启锁，用以初始化启动抢占操作多开或Stop原有业务
#**************************************************************************/ 

export LANG=zh_CN.GBK

1.4.1 结果输出函数模块

### Print error messges eg: _err "This is error"
function _err()
{
#echo -e "\033[1;31m[ERROR] [email protected]\033[0m" >&2
echo -e "\033[1;31m[ERROR] [email protected]\033[0m"
}

### Print notice messages eg: _info "This is Info"
function _info()
{
#echo -e "\033[1;32m[Info] [email protected]\033[0m" >&2
echo -e "\033[1;32m[Info] [email protected]\033[0m"
}
1.4.2 日志输出函数模块

###LOG_PATH
###程序运行all日志输出路径
g_s_LOG_PATH=/var/applog/${G_LOG_FILE}

mkdir -p $g_s_LOG_PATH
g_s_LOGDATE=`date +"%F"`
#执行脚本生成的日志
g_s_LOGFILE="${g_s_LOG_PATH}/pid_run.${g_s_LOGDATE}.log"
### LOG to file eg:g_fn_LOG "Test"
g_fn_LOG()
{
s_Ddate=`date +"%F %H:%M:%S"`
echo "[$s_Ddate] $*" >> $g_s_LOGFILE
}

1.4.3 flock锁函数模块

### Add flock Avoid more open program
function _lock()
{
flock -n 3
[ $? -eq 1 ] && { _err "Fault $(basename $0) is Already in Runing,Plesase Waiting....^_^ GoodBye!!!"; exit; }
_info "$(basename $0) Current Pid is:$$"
_log "$(basename $0) Current Pid is:$$"
sleep 50
} 3<>/tmp/$(basename $0 | awk -F. 'BEGIN{OFS="."};{NF=NF-1;print $0}').lock

function main()
{
_lock
}

#main
main