Creat logs in txt file

[phongvucba]

"I am not able to find this file...
I log in with FileZilla with both "apps" and "ftp", but cannot find this folder. I have neihter the folder /home/ftp" . I changed
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if #buffer > 1 then
result, err = io.writefile ('/home/ftp/'..logfile, table.concat(buffer, '\r\n'))
log('Created log file '..logfile)
end
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Can anyone see where that file is saved? I can't see where that file is

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Here is a part of my daily report script. It runs in a scheduled script every day at 00:00 and creates a csv file in /tmp folder for object logs of previous day.

PS: Credit for parts of the script goes to Edgars 

Code:

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081

-- Set logtime start-end and date to get past day data date = os.date('*t') date.hour=0 date.min=0 date.sec=0 log_end=os.time(date)-1 date.day = date.day - 1 log_start=os.time(date) dates = {  ['start'] = date,  ['end'] = os.date('*t'), } -- Log filename logfile=string.format('DailyLog_%s.csv', os.date('%d-%m-%Y',log_start)) -- list of objects by id objects = {} -- Select objects address and datatype query = 'SELECT address, datatype, name FROM objects' for _, object in ipairs(db:getall(query)) do objects[ tonumber(object.address) ] = { datatype = tonumber(object.datatype), name = tostring(object.name or ''), } end -- csv buffer buffer = { '"date","address","name","value"' } -- get object logs -- query = 'SELECT src, address, datahex, logtime, eventtype FROM objectlog WHERE logtime >= ? ORDER BY id DESC' query = 'SELECT * FROM objectlog WHERE logtime >='..log_start.. ' and logtime<=' .. log_end.. ' ORDER BY id' for _, row in ipairs(db:getall(query)) do object = objects[ tonumber(row.address) ] -- found matching object and event type is group write if object and row.eventtype == 'write' then datatype = object.datatype -- check that object datatype is set if datatype then -- decode data data = knxdatatype.decode(row.datahex, datatype) -- remove null chars from char/string datatype if datatype == dt.char or datatype == dt.string then data = data:gsub('%z+', '') -- date to DD.MM.YYYY elseif datatype == dt.date then data = string.format('%.2d.%.2d.%.2d', data.day, data.month, data.year) -- time to HH:MM:SS elseif datatype == dt.time then data = string.format('%.2d:%.2d:%.2d', data.hour, data.minute, data.second) end else data = '' end -- format csv row logdate = os.date('%d/%m/%Y %H:%M:%S', row.logtime) csv = string.format('%q,%q,%q,%q', logdate, knxlib.decodega(row.address), object.name, tostring(data)) -- add to buffer table.insert(buffer, csv) end end -- write file only when there's data in buffer if #buffer > 1 then result, err = io.writefile ('/tmp/'..logfile, table.concat(buffer, '\r\n')) log('Created log file '..logfile) end -- error while writing if err then alert('File write error: %s', tostring(err)) end

Help me !!  Can you explain more clearly how to do it, where to put this script, how to get the saved file? Because I don't see it