问题
Quite simply, I have node script that I want to execute once a month.
30 6 1 * * node /home/steve/example/script.js
But this doesn't work, presumably because of path or the shell the command is being ran under. I've tried the following means of executing node via cron (tested with -v):
steve@atom:~$ node -v
v0.4.2
steve@atom:~$ sh node -v
sh: Can't open node
steve@atom:~$ bash node -v
/usr/local/bin/node: /usr/local/bin/node: cannot execute binary file
steve@atom:~$ /usr/local/bin/node -v
v0.4.2
steve@atom:~$ sh /usr/local/bin/node -v
/usr/local/bin/node: 1: Syntax error: "(" unexpected
steve@atom:~$ bash /usr/local/bin/node -v
/usr/local/bin/node: /usr/local/bin/node: cannot execute binary file
I've ran out of ideas to try, any advice?
回答1:
just provide the full path to node /usr/local/bin/node in your cron job like:
30 6 1 * * /usr/local/bin/node /home/steve/example/script.js
回答2:
Additionally, just put #!/usr/local/bin/node at the top of the script you want to execute. Then it will automatically know to execute the script with node. Make sure the file is executable as well.
回答3:
in my laptop using Linux mint the given path not working so i used this to get a work around.
$ which node
$ /usr/bin/node
this worked for me.
回答4:
These answers here saying using absolute path will all cause major problems for running a larger node app!
Real Complete Solution
Edit Cron Jobs
crontab -e
Find Node Path
which node
CD into the destination folder, then Change Cron Job according to Node Path and run script
*/2 * * * * cd /home/destination/path && /bin/node index.js
This will then allow you to run a full NodeJS application without all the errors like how using an absolute path for your index.js file.
回答5:
I don't know if changing your relative paths in your script to absolute paths is a good idea
(what happens when your file system changes or you deploy in another environment?)
You could try wrapping it in a shell script, setting some environment variables in the crontab execution. (specifically PATH & NODE_PATH for starters)
Try my suggestion for this similar question:
https://stackoverflow.com/a/27823675/608269
回答6:
Use absolute paths for the node alias and the file to be run.
Edit Cron Jobs
crontab -e
Entry to Run Our Node File
This will run every minute.
*/1 * * * * * /bin/node /public/test.js
Full Tutorial https://askmacgyver.com/blog/tutorial/how-to-run-node-scripts-from-a-cron-job
回答7:
You can also specify paths to binary files on top of your user crontab like:
PATH=/bin:/usr/bin:/usr/local/bin
* * * * * cd your/path && node foo.js
* * * * * cd your/path && npm run bar
来源：https://stackoverflow.com/questions/5849402/how-can-you-execute-a-node-js-script-via-a-cron-job