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How to retrieve application log file path from WEB-INF/classes/log4j.properties for an application installed on Websphere Application Server (WAS)?

I'm currently writing a bash script to copy log files from one host server to another host server. I have an application installed and running on a Websphere application server. The script would copy both the Server logs as well as application log to a remote staging directory. I can retrieve the server log files' path using wsadmin. I'm facing a challenge to retrieve the application log file path from log4j.properties under WEB-INF/classes directory.
Currently, I'm hard coding the log file path in a csv and from the csv, I'm retrieving it and using the command :
find <LOG_FILE_PATH> -type f -name $filename -newermt "$user_date_from" ! -newermt "$user_date_to"
Sample csv file content:
user#server_IP,AppServerName,LogFilePath,IdentifierToDifferentiateWhetherFileisServerLogOrAppLog
I want to do away with this csv file hard coding option because:
I know that log4j.properties already stores the log file paths.
I want to retrieve the log file path from log4j.properties instead at runtime, just to make sure that I do not have to update the csv hard coded value in case there is any change in log4j.properties.
Sample log4j.properties file content:
logFileLoc=<AbsoluteLogFilePath>
log4j.rootLogger=INFO,RollingAppender,stdout
log4j.appender.RollingAppender=org.apache.log4j.DailyRollingFileAppender
log4j.appender.RollingAppender.File=${logFileLoc}/<logFileName>.log
log4j.appender.RollingAppender.append=true
log4j.appender.RollingAppender.DatePattern='.'yyyy-MM-dd
log4j.appender.RollingAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.RollingAppender.layout.ConversionPattern=[%p] %d %c %M - %m%n
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{2}:%L - %m%n
So, I wonder if there exists any wsadmin like admin service available with log4j that can serve my purpose? Any help will be much appreciated.

Log4j not writing logs to file on one Websphere server and writing to file on other

I have maven application with log4j.properties in it with setting to write the logs to a specified file instead of console. When I run the EAR on one of the websphere servers it is creating the file as expected and writing logs to it. But, when I am running the same EAR on other webspehere server it is writing to console instead of writing the logs to the specified file. I have checked the permissions and everything seems to be fine. Please help me in identifying what the issue is. Thanks in advance.
# CONSOLE APPENDER (stdout)
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Threshold=DEBUG
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%d] [%t] %-5p %20c - %m%n
# ROLLING FILE APPENDER (on the file system) for memberpolicyattributesservice code
log4j.appender.xxxxService=org.apache.log4j.RollingFileAppender
log4j.appender.xxxxService.Threshold=DEBUG
log4j.appender.xxxxService.File=/var/logs/xxxServer1/xxxServiceLog.log
log4j.appender.xxxxService.layout=org.apache.log4j.PatternLayout
log4j.appender.xxxxService.layout.ConversionPattern=%d{MM-dd#HH:mm:ss} %-5p (%13F:%L) %3x - %m%n
log4j.appender.xxxxService.MaxFileSize=10000KB
log4j.appender.xxxxService.MaxBackupIndex=30
log4j.appender.xxxxService.layout=org.apache.log4j.PatternLayout
log4j.appender.xxxxService.layout.ConversionPattern=[%d] [%t] %-5p %20c - %m%n
# ROLLING FILE APPENDER (on the file system) for hiberate, open source code log files
log4j.appender.open_source_code=org.apache.log4j.RollingFileAppender
log4j.appender.open_source_code.layout=org.apache.log4j.PatternLayout
log4j.appender.open_source_code.Threshold=DEBUG
#message format:YYYY-MM-DD HH:mm:ss,ms [ThreadId] <PRIORITY> classname.message
log4j.appender.open_source_code.layout.ConversionPattern=%d [%t]<%-5p> %c.%m \r\n
#file that will be logged to
log4j.appender.open_source_code.File=/var/logs/xxxServer1/open_source_code.log
log4j.appender.open_source_code.Append=true
log4j.appender.open_source_code.MaxFileSize=1024KB
log4j.appender.open_source_code.MaxBackupIndex=5
#turn on log4j verbose mode
log4j.debug = true
# Set root logger level to INFO and its appender to DSInstrumentor,stdout.
log4j.rootLogger=DEBUG,stdout,xxxxService
# YOUR CATEGORIES (to customize logging per class/pkg/project/etc)
log4j.category.fatal=FATAL,xxxxService
log4j.category.error=ERROR,xxxxService
#This will also enable the logging for all the children (packages and classes) of this package
log4j.logger.com.xxxxx=ALL,xxxxService
# Print only messages of level INFO in the open source code
log4j.logger.org=INFO,open_source_code

You have multiple loggers defined in your root logger (DEBUG, stdout, xxxxService) but the xxxxService loggers look like they're bound to the file system on one of the systems:
log4j.appender.open_source_code.File=/var/logs/xxxServer1/open_source_code.log
Make sure that path is valid for each server in your WAS cluster.
As a side note, you should probably avoid using debug and stdout on a remote server. This is fine for local development in your workstation, but not on a remote box. Instead, provide different log4j properties on your various deployment tiers. This lets you customize the log location or appender (say c:\temp or CONSOLE on your desktop, but /var/logs ... on all remote machines) as well as your log levels (DEBUG for desktop, maybe INFO for QA or Staging, and WARN or ERROR for Production).

How to add log to Syslog while creating new log file by log4j?

i want to add log into systems event log when:-
1.create new log file
2.create backup of file,when maximum size reached.
3.create a log file when open and close the log.
Thanks

If you have enabled the syslog in your Linux machine you can configure log4j.properties like below
log4j.rootLogger=INFO, SYSLOG
log4j.appender.SYSLOG=org.apache.log4j.net.SyslogAppender
log4j.appender.SYSLOG.SyslogHost=localhost
log4j.appender.SYSLOG.Facility=Local3
log4j.appender.SYSLOG.Header=true
log4j.appender.SYSLOG.layout=org.apache.log4j.PatternLayout
log4j.appender.SYSLOG.layout.ConversionPattern=java %d{ISO8601} %p %t %c{0}.%M - %m%n

log4j: How to use SocketAppender?

I've got an answer about how to use SocketAppender (I need it to gather logs from distributed system), but I am new to log4j and I have no idea how to use that sample code.
Probably I should have log4j-server.properties like that:
log4j.appender.SERVER=org.apache.log4j.net.SocketAppender
log4j.appender.SA.Port=4712
log4j.appender.SA.RemoteHost=loghost
log4j.appender.SA.ReconnectionDelay=10000
But I still don't know how to start the server (how to use this line)
org.apache.log4j.net.SimpleSocketServer 4712 log4j-server.properties
And what is the most important:
Where\How can I see my logs?

You can run the server using
java -classpath log4j.jar org.apache.log4j.net.SimpleSocketServer 4712 log4j-server.properties
The SimpleSocketServer receives logging events sent to the specified port number by the remote SocketAppender, and logs them as if they were generated locally, according to the configuration you supply in log4j-server.properties. It's up to you to configure the relevant console/file/rolling file appenders and attach them to the relevant loggers just as you would if you were doing the logging directly in the original process rather than piping the log events over a network socket. I.e. if you're currently creating local log files with something like:
log4j.rootLogger=DEBUG, file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=logfile.log
log4j.appender.file.MaxFileSize=1MB
log4j.appender.file.MaxBackupIndex=1
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=[%d] [%t] [%m]%n
then you would change it so that the sending side log4j.properties simply says
log4j.rootLogger=DEBUG, server
log4j.appender.server=org.apache.log4j.net.SocketAppender
log4j.appender.server.Port=4712
log4j.appender.server.RemoteHost=loghost
log4j.appender.server.ReconnectionDelay=10000
and the server-side log4j-server.properties contains the definitions that were previously on the sending side:
log4j.rootLogger=DEBUG, file
log4j.appender.file=org.apache.log4j.RollingFileAppender
log4j.appender.file.File=logfile.log
log4j.appender.file.MaxFileSize=1MB
log4j.appender.file.MaxBackupIndex=1
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=[%d] [%t] [%m]%n
In particular, note that there's no point specifying a layout on the SocketAppender on the sending side - what goes over the network is the whole logging event object, it's the receiving side that is responsible for doing the layout.

To start the server simple type below command in command prompt and server will be up and running:
java -classpath C:Users.m2repositorylog4jlog4j1.2.17log4j-1.2.17.jar org.apache.log4j.net.SimpleSocketServer 4712 log4j-server.properties
Please do not forget to specify the correct path of log4j.jar in your system.

how to run EJB 3 app on Jboss application server

While running the application i do not able to set the jndi.properties and log4j.properties
Actually i have to se the following properities but I do not know where to write these code in a file or somewhere else. If in file what will be the file extension and file name and where to keep it in application.
jndi.properties:
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces
java.naming.provider.url=localhost:1099
log4j.properties:
# Set root category priority to INFO and its only appender to CONSOLE.
log4j.rootCategory=INFO, CONSOLE
# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.Threshold=INFO
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=- %m%n

You can set the default JBoss JNDI properties in jboss\server\default\conf\jndi.properties file.

I can't understand what you want to do or which Jboss version you use. But for the log4j options in Jboss 4.2.3 go to:
jboss\server\default\conf\jboss-log4j.xml