DOS Tricks in JAVA

One of the most important DOS command is tasklist command.We can perceive this command in many ways.

"tasklist" is a DOS command that displays the running processes in the Windows OS.It displays all the applications and services running with their PID(process ID).


Syntax

tasklist[.exe] [/s computer] [/u domain\user [/p password]] [/fo {TABLE|LIST|CSV}] [/nh] [/fi FilterName [/fi FilterName2 [ ... ]]] [/m [ModuleName] | /svc | /v]

Parameters	Uses
/S system	Specifies the remote system to connect to.
/U [domain\]user	Specifies the user context under which the command should execute.
/P [password]	Specifies the password for the given user context. Prompts for input if omitted.
/M [module]	Lists all tasks currently using the given exe/dll name. If the module name is not specified all loaded modules are displayed.
/SVC	Displays services hosted in each process.
/V	Displays verbose task information.
/FI filter	Displays a set of tasks that match a given criteria specified by the filter.
/FO format	Specifies the output format. Valid values: "TABLE", "LIST", "CSV".
/NH	Specifies that the "Column Header" should not be displayed in the output. Valid only for "TABLE" and "CSV" formats.

Filters

Filter Name	Valid Operators	Valid values
STATUS	eq, ne	RUNNING | NOT RESPONDING | UNKNOWN
IMAGENAME	eq, ne	Image name
PID	eq, ne, gt, lt, ge, le	PID value
SESSION	eq, ne, gt, lt, ge, le	Session number
SESSIONNAME	eq, ne	Session name
CPUTIME	eq, ne, gt, lt, ge, le	CPU time in the format of hh:mm:ss.hh - hours,mm - minutesss - seconds
MEMUSAGE	eq, ne, gt, lt, ge, le	Memory usage in KB
USERNAME	eq, ne	User name in [domain\]user format
SERVICES	eq, ne	Service name
WINDOWTITLE	eq, ne	Window title
MODULES	eq, ne	DLL name

 


Now let us see how we can make utilization of this command with the help of some examples:-

•  tasklist /s Computer

Process info of local/remote System

• tasklist -v
• tasklist -fi

Filter Result of tasklist

• tasklist -v -fi "ImageName eq VLC.exe" /fo csv

To get VLC Windows Title

CODE SNIPPET to get current sound Track name in VLC

public String CallMe() {   Runtime runtime = Runtime.getRuntime();            String cmds[] = {"cmd", "/c", "tasklist","/v","/fi","ImageName eq VLC.exe","/fo","CSV"};            Process proc;            String val = null; try { proc = runtime.exec(cmds);            InputStream inputstream = proc.getInputStream();            InputStreamReader inputstreamreader = new InputStreamReader(inputstream);            BufferedReader bufferedreader = new BufferedReader(inputstreamreader);            String line;            int count = 0; while ((line = bufferedreader.readLine()) != null) {    if(count==1)    {    String[] a = line.split(","); val = a[9];    }    count++;    } } catch (IOException e) { e.printStackTrace(); } return val; }

This can be used to set curent soundtrack as your GTalk status by using SMACK api to communicate with GOOGLE.
This will be explained in more depth in my next Blog.