How to use env .bashrc variables on crontab?

问题

I need to send a personal env variable $FTP111_PASSWD defined at my personal .bashrc to crontab execution. How to set an environment variable on crontab?

My original shell script, named cron4_etc.sh, created for crontab execution was:

#!/bin/bash

cd /myFolder/
ftp -n -i <<EOF
open 101.111.111.111
user myUser "$FTP111_PASSWD"
mget check_*.log
bye
EOF

If I execute the script via terminal ./cron4_etc.sh it is executing fine, but if I have start it using the following crontab line

  */20 *     *   *   *     /home/myUser/cron4_etc.sh > /tmp/cron4.log 2>&1

crontab says

Password: Login incorrect.\nLogin failed.

I tried to improve my script using this suggestion, but the error persists:

#!/usr/bin/env bash

# set environment
source /home/myUser/.bashrc

cd /tmp/pg_io/PGW
ftp -n -i <<EOF
open 101.111.111.111
user myUser "$FTP111_PASSWD"
mget check_*.log
bye
EOF

PS: I am using Ubuntu 18 LTS, but the question is for generic crontab.

回答1:

My favorite solution comes from Augusto Destrero, who provided the following answer to a very similar question:

Setting vars in /etc/environment also worked for me in Ubuntu. As of 12.04, variables in /etc/environment are loaded for cron.

Some people suggest to do a simple env >> /etc/environment to append all your environment variables, but I would be careful with that and rather review /etc/environment manually.

来源：https://stackoverflow.com/questions/61438824/how-to-use-env-bashrc-variables-on-crontab