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[英]MySQLdb module works when running Python script from the command line, but not as a cron job
[英]Expect script works fine in command line but does not work in cron job
我有 python 脚本,它像这样调用 shell 脚本:
p = subprocess.Popen([/path/to/script.sh], stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
output, error = p.communicate()
expect
脚本:
#!/usr/bin/env expect
set username "user"
set password "pass"
cd /my/repo
spawn /usr/bin/git pull origin master
expect "Username"
send "$username\r"
expect "Password"
send "$password\r"
interact
当我手动运行 py-script 时它工作正常,我看到如下输出:
Username for repo: user
Password for repo:
* branch master -> FETCH_HEAD
Already up to date.
但是当我通过 cron 运行我的脚本时,我看到了这个:
Username for repo: user
Password for repo:
什么也没有发生。 我究竟做错了什么?
我的 /etc/crontab 文件:
SHELL=/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
10 * * * * my_username /usr/bin/python3 /path/to/python/script.py
您需要更改interact
以expect -timeout -1 eof
。
interact
仅在 Expect 脚本在 tty 上运行但 cron 作业不在 tty 上运行时才有效。
您可以从交互式 shell 验证这一点:
# this works
expect -c 'spawn sleep 5; interact'
# this does not work
true | expect -c 'spawn sleep 5; interact'
# this works
true | expect -c 'spawn sleep 5; expect -timeout -1 eof'
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