Cheat Sheet

This page is a listing of things that I always forget, and would like to have close by. It should be changing constantly and possibly contain stuff which you, the reader, might find obvious or pointless, and for that, I apologise!

OSGI (Karaf)

• Refresh feature: features:refreshurl mvn:GROUP/ARTIFACT/VERSION/xml/features
• List exports of a package : packages:export BUNDLE
• Find which bundle exports a package : packages:export | grep org.package.i.need

Java Web Services

• Getting request context: ((BindingProvider)service).getRequestContext()
• Useful Binding properties
• BindingProvider.SESSION_MAINTAIN_PROPERTY (to mantain session across calls)
• BindingProvider.ENDPOINT_ADDRESS_PROPERTY (to change the endpoint address dynamically)
•  Logging of payload
• -Dcom.sun.xml.internal.ws.transport.http.client.HttpTransportPipe.dump=true
• Pre 1.6 -Dcom.sun.xml.ws.transport.http.client.HttpTransportPipe.dump="true"

Spring Roo

• With JSF, you might need to use mvn jetty:run-exploded or mvn tomcat:run-war if you see
  javax.servlet.ServletException: /templates/layout.xhtml @8,63 locale="#{localeBean.locale}" Attribute did not evaluate to a String or Locale: null
  ROO-2598.

Mule

• Increase test timeout: -Dmule.test.timeoutSecs=XX

MySQL

• Clear MySQL specific escape characters from dumped SQL to work with HSQL
• remove `
• replace \' with '' (note that these are 2 single quotes)
• Possibly replace \" with "

Unix Command Line

• Unzip tar.gz : tar -xzvf name.tar.gz
• Diskspace : df -h
• Diskusage : du -hs *
• Diskusage (include hidden files) : du -hcs .[!.]* *
• Diskusage (sorted) : du -hcs .[!.]* * | gsort -h (for Mac brew install coreutils)
• Delete specific files recusively: find -iname *SNAPSHOT*.jar -exec rm -f {} \;
• Find java processes: ps -ef | grep java
• Run in background: add & behind the command, then you can use the jobs command to see what jobs are running. 
• Check working directory of process : pwdx 1234 
• Find which process is listening on port : sudo netstat -lpn |grep :8080
• Touchpad stops working on Ubuntu: synclient TouchpadOff=0
• rpm
  
  • install: rpm –ivh packagename
  • upgrade: rpm –Uvh packagename
  • find package: rpm -qa | grep packagename
  • uninstall: rpm -e packagename
  • esplode: rpm2cpio packagename.rpm | cpio -idmv

Mac terminal

• List listening ports : sudo lsof -i -P | grep -i "listen"

Ubuntu

• Switch to Console Mode : Ctrl+Alt+F1 till F6
• Switch back to Desktop : Ctrl+Alt+F7
• Kill GUI : SysRq+K. SysRq = AltGr+Print+K on qwerty

Command Prompt

• Find Process Listening on a specific port, for example, find who is listening on port 80: netstat -ano |find /i "LISTENING" | find /i ":80"
• Create File: echo # Git Ignore # > .gitignore
•  Check error level before continuing (for example for when calling mvn) : if not "%ERRORLEVEL%" == "0" exit /b

Maven

• Generate test jar : http://maven.apache.org/guides/mini/guide-attached-tests.html
• Download Sources : mvn dependency:sources
• Download Javadocs : mvn dependency:resolve -Dclassifier=javadoc 
• Install 3rd party jars :  mvn install:install-file -Dfile= -DgroupId= -DartifactId= -Dversion= -Dpackaging=
  

Oracle

• Change Oracel10g XE port :SQL> Exec DBMS_XDB.SETHTTPPORT(8082);

VirtualBox

• Mount Shared folder on Centos: After creating the target folder "sudo mount -t vboxsf folder-name folder-name -o uid=500,gid=500" - 500 stands for the user and group IDs that I want to own the folder.