[PS] man ps

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ps aux -T

 

 

EXAMPLES                                                                                               

       To see every process on the system using standard syntax:                                        
          ps -e                                                                                         
          ps -ef                                                                                        
          ps -eF                                                                                        
          ps -ely                                                                                       
                                                                                                        
       To see every process on the system using BSD syntax:                                             
          ps ax                                                                                         
          ps axu                                                                                        
                                                                                                        
       To print a process tree:                                                                         
          ps -ejH                                                                                       
          ps axjf                                                                                       
                                                                                                        
       To get info about threads:                                                                       
          ps -eLf                                                                                       
          ps axms                                                                                       
                                                                                                        
       To get security info:                                                                            
          ps -eo euser,ruser,suser,fuser,f,comm,label                                                   
          ps axZ                                                                                        
          ps -eM                                                                                        
                                                                                                        
       To see every process running as root (real & effective ID) in user format:                       
          ps -U root -u root u                                                                          
                                                                                                        
       To see every process with a user-defined format:                                                 
          ps -eo pid,tid,class,rtprio,ni,pri,psr,pcpu,stat,wchan:14,comm                                
          ps axo stat,euid,ruid,tty,tpgid,sess,pgrp,ppid,pid,pcpu,comm                                  
          ps -Ao pid,tt,user,fname,tmout,f,wchan                                                        
                                                                                                        
       Print only the process IDs of syslogd:                                                           
          ps -C syslogd -o pid=                                                                         
                                                                                                        
       Print only the name of PID 42:                                                                   
          ps -q 42 -o comm=   

 

 

 State    

PROCESS STATE CODES                                                                                                      
       Here are the different values that the s, stat and state output specifiers (header "STAT" or "S") will display to 
       describe the state of a process:                                                                                  
                                                                                                                         
               D    uninterruptible sleep (usually IO)                                                                   
               R    running or runnable (on run queue)                                                                   
               S    interruptible sleep (waiting for an event to complete)                                               
               T    stopped by job control signal                                                                        
               t    stopped by debugger during the tracing                                                               
               W    paging (not valid since the 2.6.xx kernel)                                                           
               X    dead (should never be seen)                                                                          
               Z    defunct ("zombie") process, terminated but not reaped by its parent                                  
                                                                                                                         
       For BSD formats and when the stat keyword is used, additional characters may be displayed:                        
                                                                                                                         
               <    high-priority (not nice to other users)                                                              
               N    low-priority (nice to other users)                                                                   
               L    has pages locked into memory (for real-time and custom IO)                                           
               s    is a session leader                                                                                  
               l    is multi-threaded (using CLONE_THREAD, like NPTL pthreads do)                                        
               +    is in the foreground process group