linux服务脚本编写

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#!/bin/bash   ### BEGIN INIT INFO # Provides: 应用程序开发者 # RequiRED-Start: $all # RequiRED-Stop: $all # Default-Start: 2 3 4 5 # Default-Stop: 0 1 6 # Short-Description: 简短应用程序描述 # Description: 详细应用程序描述 ### END INIT INFO   # 程序文件目录 ROOT="/work/code/cusflo-server-moon" # 程序文件 APP="./dog/client_update_dog.py" # 程序配置文件 CONFIG="./server_config.ini" # 服务日志 DEFAULT_LOG_FILE='./daodaoliang.log'   # 样式定制 RED="\\e[31m" GREEN="\\e[32m" YELLOW="\\e[33m" BLACK="\\e[0m" POS="\\e[60G"   ok_msg() { echo -e "${1}${POS}${BLACK}[${GREEN} OK ${BLACK}]" }   failed_msg() { echo -e "${1}${POS}${BLACK}[${RED}FAILED${BLACK}]" }   # load process info of app # exist return 0 # no exist return 1 load_process_info() { # get pid app_pid=$(ps -ef|grep ${APP}|gawk '$0 !~/grep/ {print $2}' |tr -s '\n' ' ') # check pid again ps -p ${app_pid} >/dev/null 2>/dev/null ret=$?; if [[ 0 -ne $ret ]]; then error_msg="process $app_pid does not exists"; return 1; fi return 0; }   start() { # if exists, exit. load_process_info if [[ 0 -eq $? ]]; then failed_msg "${APP} started(pid ${app_pid}), should not start it again."; return 0; fi   # not exists, start server ok_msg "Starting ${APP}..."   # get log file log_file=`cd ${ROOT} && cat ${CONFIG} |grep '^log_file'| awk '{print $2}'| awk -F ';' '{print $1}'` if [[ -z $log_file ]]; then log_file=${DEFAULT_LOG_FILE}; fi # get abs path log_dir=`dirname $log_file` log_file=`(cd ${ROOT} && cd $log_dir && pwd)`/`basename $log_file`   # TODO: FIXME: set limit by, for instance, "ulimit -HSn 10000" if [[ -z $log_file ]]; then (cd ${ROOT};nohup python ${APP} >/dev/null 2>&1 &) else (cd ${ROOT};nohup python ${APP} >/dev.null >> $log_file 2>&1 &) fi   # check again after start server for ((i = 0; i < 5; i++)); do # sleep a little while, for app may start then crash. sleep 0.1 load_process_info ret=$?; if [[ 0 -ne $ret ]]; then failed_msg "${APP} start failed"; failed_msg "see $log_file"; return $ret; fi done   # check whether started. load_process_info ret=$?; if [[ 0 -eq $? ]]; then ok_msg "${APP} started(pid ${app_pid})"; return 0; fi   failed_msg "${APP} not started" return $ret }   stop() { # not start, exit load_process_info if [[ 0 -ne $? ]]; then failed_msg "${APP} not start."; return 0; fi   ok_msg "Stopping ${APP}(pid ${app_pid})..."   # process exists, try to kill to stop normally for((i=0;i<30;i++)); do load_process_info if [[ 0 -eq $? ]]; then kill -s SIGTERM ${app_pid} 2>/dev/null ret=$?; if [[ 0 -ne $ret ]]; then failed_msg "send signal SIGTERM failed ret=$ret"; return $ret; fi sleep 0.1 else ok_msg "${APP} stopped by SIGTERM" # delete the pid file when stop success. rm -f ${pid_file} break; fi done   # process exists, use kill -9 to force to exit load_process_info if [[ 0 -eq $? ]]; then kill -s SIGKILL ${app_pid} 2>/dev/null ret=$?; if [[ 0 -ne $ret ]]; then failed_msg "send signal SIGKILL failed ret=$ret"; return $ret; fi ok_msg "${APP} stopped by SIGKILL" else # delete the pid file when stop success. rm -f ${pid_file} fi   sleep 0.1 return 0 }   # get the status of srs process # @return 0 if srs is running; otherwise, 1 for stopped. status() { load_process_info ret=$?; if [[ 0 -eq $ret ]]; then echo "${APP}(pid ${app_pid}) is running."; return 0; fi   echo "${APP} is stopped, $error_msg" return 1 }   menu() { case "$1" in start) start ;; stop) stop ;; restart) stop start ;; status) status ;; *) echo "Usage: $0 {start|stop|status|restart}" return 1 ;; esac }   menu $1   code=$? exit ${code}

 

 

 

 

http://daodaoliang.com/linux%E5%AD%A6%E4%B9%A0/2015/02/04/linux%E5%AD%A6%E4%B9%A0-2015-02-04-%E6%9C%8D%E5%8A%A1%E8%84%9A%E6%9C%AC%E7%BC%96%E5%86%99/