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Powershell to send a log file

Posted on 2014-10-21
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Last Modified: 2014-11-12
Is it possible to use powershell to read a log file and send out the content to administator ?

Can I put the powershell in a batch file and execute it after running a program ?


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Question by:AXISHK
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14 Comments
 
LVL 70

Expert Comment

by:Qlemo
ID: 40394836
Yes, you can do that. But we will need some more background info: Is the log file a simple text file? And do you mean to send it as email attachment? If both answers are yes:
@echo off
Rem you commands here
powershell -command "send-MailMessage -From me@here.com -To You@There.Com -SmtpServer mx.there.com -Subject 'Log file' -Attachments 'C:\Logfiles\ThisLogfile.txt'"

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Author Comment

by:AXISHK
ID: 40402174
Tks.

A log file will be generated when the program completes. I need to dump the content and send to administrator, rather than attach it as a attachment.

Afterwards, the log will be renamed to , say yyyymmdd.log and create a new one, mylog.txt.

Is it too complicated for powershell to archive this ?  Tks
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Expert Comment

by:Qlemo
ID: 40402221
That's a perfect task for running PowerShell. I would recommend to run only PS here, even the program call.
# PowerShell-only code
push-location C:\Path\To\Your\Logfile\

# this creates mylog.txt in the folder noted above
& "C:\Path\To\Your\Application\Something.exe"

Send-MailMessage -From me@here.com -To You@There.Com -SmtpServer mx.there.com -Subject 'Log file' -BodyAsHTML -Body ((get-content mylog.txt) -join '<br>')

Rename-Item mylog.txt ((get-date -format yyyymmdd)+'.log')

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Author Comment

by:AXISHK
ID: 40404040
Tks. Get a bit complicated for the log file.

After running the program, the name of the log file is myLog 20141025 233211.

How to modify the powershell such that
1. it will loop through all log file starting with "myLog".
2. For each loop, read the content of the log file and send it out through email.
3. Delete the log fiel.

Thanks again.
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Expert Comment

by:Qlemo
ID: 40404057
I'm not sure I understand you correctly, but I assume there is a "mylog.txt" and optionally several "mylog 2014*.txt".
The script just uses the trailing text to add it to the subject line, so you'll not loose date/time info. The current log will be posted with the current date and time.
# PowerShell-only code
push-location C:\Path\To\Your\Logfile\

# this creates mylog*.txt in the folder noted above
& "C:\Path\To\Your\Application\Something.exe"

get-childitem 'mylog*.txt' | % {
  $date = $_.BaseName -replace 'mylog'
  if ($date -eq "") { $date = get-date -format 'yyyymmdd hhMMss' }
  Send-MailMessage -From me@here.com -To You@There.Com -SmtpServer mx.there.com -Subject "Log file of $date"' -BodyAsHTML -Body ((get-content $_) -join '<br>')
  Remove-Item $_
}

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Author Comment

by:AXISHK
ID: 40404671
Tks. The content of the log file can't be displayed properly. Chinese chars are displayed as "????". Any idea ?


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LVL 70

Expert Comment

by:Qlemo
ID: 40404680
You should be more precise. Is the log file in Chinese, and the email can't display that, or is the log file standard text and displaying in strange languages?
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Author Comment

by:AXISHK
ID: 40404808
The Chinese chars can be displayed properly in the log file. However, the content in the email shows as "????" ...

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LVL 70

Expert Comment

by:Qlemo
ID: 40405500
I didn't expect to see any text file requiring Unicode encoding. In future, whenever you ask a question here involving to treat text files, emphasize the need to keep Chinese characters.

I'm not experienced with HTML code and Chinese characters, I guess we need to add Encoding tags in the generated HTML body for being able to properly display them. I'll add more Topic Areas to reach Experts more versed in that.
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Author Comment

by:AXISHK
ID: 40436998
I've requested that this question be closed as follows:

Accepted answer: 0 points for AXISHK's comment #a40404671

for the following reason:

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LVL 70

Accepted Solution

by:
Qlemo earned 500 total points
ID: 40437488
This works for me with a mock-up Simplified Chinese logfile:
# PowerShell-only code
push-location C:\Path\To\Your\Logfile\

# this creates mylog*.txt in the folder noted above
& "C:\Path\To\Your\Application\Something.exe"

get-childitem 'mylog*.txt' | % {
  $date = $_.BaseName -replace 'mylog'
  if ($date -eq "") { $date = get-date -format 'yyyymmdd hhMMss' }
  Send-MailMessage -From me@here.com -To You@There.Com -SmtpServer mx.there.com -Subject "Log file of $date"' -BodyAsHTML -Body ((get-content $_) -join '<br>') -Encoding ([System.Text.Encoding]::Unicode)
  Remove-Item $_
}

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You might have to change Unicode to UTF8 or UTF32, depending on the log file encoding.
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Author Closing Comment

by:AXISHK
ID: 40439041
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