将wlst命令重定向到python脚本中的文件

Question

There is a command with arguments like this in a python script

ThreadDump('true', 'location', servername)

the above command is a wlst command that takes a thread dump for that server and it redirects the dump file to that location and that file in that location.

But the ThreadDump() is in a for loop from 1 to 6, so the thread dump has to happen 5 times, and each time the dump information has to be appended to the file.

Tried the entire output of the python file to a another file using >& option, but the problem with this is there is a CRON job that is running and the original dump information is getting rewritten with the new information.

so, just need to redirect and append that above command

ThreadDump('true', 'location', 'servername') to a file >> /dir/newdir/file

or ThreadDump('true', 'location', 'servername') to a file >& /dir/newdir/file

Answer 1

如果您可以使用文件中的threaddump从脚本重定向输出，并且唯一的问题是运行此脚本的cron作业，请尝试编辑crontab以在其中添加>>（2>＆1用于将stderr预测为stdout）：

*/15 * * * * /path/to/shell/script.sh >> /www/logs/script.log 2>&1

Answer 2

It would be easier to understand with a sample of the original code, but I think that maybe you can do something like

import os
import fileinput

for i, whatever in enumerate(list_of_threads_or_something):
     ThreadDump('true', 'location' + str(i), servername)
     # do whatever else you need to do

locations = ['location'+str(i) for i in range(6)]
with fileinput.input(locations) as f, open('location', 'w') as fout:
    for line in f:
        fout.write(line)

for loc in locations:
    os.remove(loc)

change 'location' as needed