Home/ Questions/Q 6374955
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-25T01:33:10+00:00

I can use this command mysqldump -uroot myDB| gzip > mydb_`date +%d-%m-%Y`.sql.gz but when

  • 0

I can use this command 

mysqldump -u"root"  myDB| gzip > mydb_`date +%d-%m-%Y`.sql.gz

but when run in crontab 

* * * * * mysqldump -u"root"  myDB| gzip > mydb_`date +%d-%m-%Y`.sql.gz

( this error cause by function date, when i remove it , crontab run good )

on ubuntu, it happen this error in log file.

ubuntu CRON[xxxx] (user) CMD(mysqldump -u"root"  myDB| gzip > mydb_`date+)
ubuntu CRON[xxxx] (CRON) error ( grandchild #5353 failed with exit status 2)
ubuntu CRON[xxxx] (CRON) info (no MTA installed, discarding output)
Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    % signs in a crontab command are converted to newlines, and all data after the first % is sent to the command’s stdin. Replace each % with \%.

    (And you only had 4 time fields: * * * *; you need 5 (you later fixed the question).)

    • 0