本文介绍了手动运行时,cron作业工作,但不能从crontab中的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我做了一个使用永远控制node.js的一个脚本,它没有任何幻想,但我想它的时候手动运行,但是从cron作业@reboot什么也不会发生在运行时它的工作就是这个样子,我有cron的集到stderr和stdout重定向到一个日志文件,这样我就可以揣摩出来,但该文件永远不会改变。
I made a script that uses forever to control node.js, its nothing fancy, but it works just the way I want it to when run manually, however when run from the Cron job @reboot nothing happens, I have the cron set to redirect stderr and stdout to a log file so I can try to figure it out, but the file never changes.
cron作业:
@reboot / sbin目录/ Ghost启动和放大器;> /home/mary/.ghost.log
脚本的内容:
#!/bin/bash
###########################################################
# This script is made to control Ghost using forever as #
# if it were a service running on your system. Place in #
# your path ie /usr/bin/ #
# #
# This script was created/tested on a Rasberry Pi #
# running Raspbian, however it should be *NIX independent #
# #
# This script must be run as root, sudo will not work #
# with forever #
# #
# Make sure you alter the GhostDIR variable to your #
# ghost directory, ie mine is /opt/ghost #
# #
# Created by Paul Williams #
# www.infinitepercent.com #
###########################################################
# Variables:
GhostDIR=/opt/ghost #BE SURE TO ADJUST THIS TO YOUR GHOST DIRECTORY
# Functions:
# start function will test if Ghost is running, if not it will start it with forever
start()
{
PID=$(ps -ef | grep monitor\ index.js | grep -v grep | grep -v ps | awk '{print $2}')
if [ "$PID" = "" ]; then
NODE_ENV=production forever start index.js
else
echo "Ghost is already running!"
fi
}
# stop function will test if Ghost is running, it if is it will stop it with forever
stop()
{
PID=$(ps -ef | grep monitor\ index.js | grep -v grep | grep -v ps | awk '{print $2}')
if [ "$PID" = "" ]; then
echo "Ghost isn't running!"
else
forever stop index.js
fi
}
# restart function calls stop function and then calls start function
restart()
{
stop
start
}
# WARNING, DO NOT EVER MANUALLY ENTER BOOT
# YOU MAY END UP WITH MULTIPLE INSTANCES OF GHOST
# THIS OPTION IS MEANT TO BE USED FOR A CRON @REBOOT
boot()
{
NODE_ENV=production forever start index.js
}
# status function is used to check on the status of Ghost
status()
{
forever list
}
cd $GhostDIR
if [ "$1" = "start" ]; then
start
elif [ "$1" = "stop" ]; then
stop
elif [ "$1" = "restart" ]; then
restart
elif [ "$1" = "status" ]; then
status
elif [ "$1" = "boot" ]; then
boot
else
echo "$0 {start|stop|restart|status}"
fi
任何帮助AP preciated!
Any help is appreciated!
推荐答案
典型的cron错误。
您必须使用绝对路径的一切。即使是grep的,PS,AWK等。
You must use absolute paths for everything. Even for grep, ps, awk, etc.
这篇关于手动运行时,cron作业工作,但不能从crontab中的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!