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Class org.apache.hadoop.util.Shell

Removed Methods
String[] getGROUPS_COMMAND() a Unix command to get the current user's groups list
String[] getUlimitMemoryCommand(Configuration) Get the Unix command for setting the maximum virtual memory available to a given child process.
 

Added Methods
String execCommand(Map, String[]) Static method to execute a shell command.
String execCommand(Map, String[], long) Static method to execute a shell command.
String[] getGroupsCommand() a Unix command to get the current user's groups list
String[] getGroupsForUserCommand(String) a Unix command to get a given user's groups list
String[] getUlimitMemoryCommand(int) Get the Unix command for setting the maximum virtual memory available to a given child process.
String[] getUlimitMemoryCommand(Configuration) Get the Unix command for setting the maximum virtual memory available to a given child process.
boolean isTimedOut() To check if the passed script to shell command executor timed out or not.
 

Changed Methods
void setEnvironment(Map) Change in signature from (String, String>) to Map.
set the environment for the command
 

Added Fields
String ULIMIT_COMMAND a Unix command to get ulimit of a process.
long timeOutInterval Time after which the executing script would be timedout