WRT pgrep, it is a real grep, the argument is NOT a program name rather, it is a regular expression applied to the first item in /proc//cmdline ( usually the name from the executing commandline (or execve()). Z defunct ("zombie") process, terminated but not reaped by its parent To use kill, you must know the process ID (PID) of the process you wish to terminate. W paging (not valid since the 2.6.xx kernel) S interruptible sleep (waiting for an event to complete) Or "S") will display to describe the state of a process: Here are the different values that the s, stat and state output specifiers (header "STAT" If you want to bring a background process to the foreground, and you can use the fg command. Outputs: devopsmydevops jobs 1+ Running ping 192.168.3.50 &. ps -e It's normal for a system to have large number of processes running at any given time, so it's easier to sift through this list by piping the command to more.
$ ps -e -o stat,command,pid | grep '^S ' | wc -l If you want to list your background processes, and you can type the jobs command, type: jobs. The ps command can list all the processes running on a Linux system with the -e option. To show the all running process in Linux commonly ps command is used, but there are different tools are available in Linux that provides you a list of all. Pablo's command should use T rather than S $ ps -e -o stat,command,pid | grep '^T ' Credit to he gave me the oompff (starting point) to find SIGSTOP'd and SIGTSTP'd processes, however his answers are not completely correct.
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