Ps -eo euser,ruser,suser,fuser,f,comm,label ps axZ ps -eM To see every process on the system using BSD syntax: To see every process on the system using standard syntax: A process will thus be shown if it meets any of the Selected processes are added to the set of processes to beĭisplayed. The default selection is discarded, and then the These effects are not considered when options areĭescribed as being "identical" below, so -M will be consideredĮxcept as described below, process selection options areĪdditive. Terminals (TTYs) that are owned by you alternately, this may beĭescribed as setting the selection to be the set of all processesįiltered to exclude processes owned by other users or not on a The use of BSD-style options willĪlso change the process selection to include processes on other To the default display and show the command args (args=COMMAND) The use of BSD-style options will add process state (stat=STAT) The terminal associated with the process (tname=TTY), theĬumulated CPU time in hh:mm:ss format (time=TIME), and theĮxecutable name (ucmd=CMD). ID (euid=EUID) as the current user and associated with the same It is fragile, subject to change, and thusīy default, ps selects all processes with the same effective user This behavior is intended to aid in transitioning old This ps may interpret the command as ps aux instead and print a User named x, as well as printing all processes that would be Standards require that ps -aux print all processes owned by a Note that ps -aux is distinct from ps aux. Implementations that this ps is compatible with. There are some synonymous options, which areįunctionally identical, due to the many standards and ps Options of different types may be freely mixed, but conflicts canĪppear. This version of ps accepts several kinds of options:ġ UNIX options, which may be grouped and must be preceded by aĢ BSD options, which may be grouped and must not be used with aģ GNU long options, which are preceded by two dashes. The displayed information, use top instead. If you want a repetitive update of the selection and So, don’t hesitate to open your terminal and start typing away!įor more information on Linux commands, you can refer to the Linux Command Line Guide.Ps - report a snapshot of the current processes.ĭESCRIPTION top ps displays information about a selection of the active Remember, practice is key when it comes to mastering Linux commands. Understanding this command and how to use it effectively can greatly enhance your Linux system administration skills. It combines the power of ps, grep, and the pipe symbol to provide a detailed overview of specific processes. In conclusion, the ps -ef | grep processname command is an essential tool for managing and monitoring processes in Linux. For example, if you want to check if a service like Apache is running, you can use the command ps -ef | grep apache. This command is particularly useful when you’re dealing with a large number of processes and need to find a specific one quickly. This output is then passed to the grep command, which searches for and displays lines containing the processname. So, when you run ps -ef | grep processname, the ps -ef command generates a detailed list of all processes. When you replace processname with the actual name of the process, grep will filter out all lines that contain that process name. The processname is the name of the process you’re looking for. In the context of ps -ef | grep processname, grep is used to search the output of ps -ef for a specific process name. Grep is a command-line utility used to search text or output based on specified patterns. In this case, it sends the output of the ps -ef command to the grep command. It is used to redirect the output of one command to the input of another. The pipe symbol | is a key component of this command. This includes additional details such as the UID, PID, PPID, C, STIME, TTY, TIME, and CMD. The -f option instructs ps to display full format listing. The -e option tells ps to display all processes, not just those associated with the current user. The -ef option is used in conjunction with the ps command. It provides information such as the process ID (PID), the time the process has been running, the command that started the process, and more. The ps command is used in Linux to list the currently running processes.
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