![]() Master 1551 root 13u IPv6 12898 0t0 TCP localhost:smtp (LISTEN) To list all the running process of open files of TCP Port ranges from 1-1024. List Open Files of TCP Port Ranges 1-1024 Rpcbind 1203 rpc 11u IPv6 11336 0t0 TCP *:sunrpc (LISTEN) Rpcbind 1203 rpc 9u IPv6 11333 0t0 UDP *:sunrpc Rpcbind 1203 rpc 6u IPv4 11326 0t0 UDP *:sunrpc In below example shows only IPv4 and IPv6 network files open with separate commands. ![]() The below example will list all the running processes of port 22. To find out all the running Linux processes of a specific port, just use the following command with option -i. The below command will display the list of all opened files of user tecmint. However, we’ll review FD & TYPE columns more precisely.įD – stands for a File descriptor and may see some of the values as:Īlso in FD column numbers like 1u is actual file descriptor and followed by u, r, w of its mode as: Sections and their values are self-explanatory. # lsofĬOMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME In the below example, it will show a long listing of open files some of them are extracted for better understanding which displays the columns like Command, PID, USER, FD, TYPE, etc. Find Out who’s Looking What Files and Commands? Ubiq makes it easy to visualize data in minutes, and monitor in real-time dashboards. Hopefully, now you can easily list all processes in Linux/Unix. Here’s the command to list all processes by a specific PID, say, 1234 $ ps -p 1234 $ pgrep firefoxīonus Read : How to Install Zip File in Linux It searches the current running processes and lists PIDs of matching processes. ![]() You can also use pgrep command for this purpose. In the above command, we pass the output of ps aux to grep command and search for string “firefox”. Here’s the command to list all processes by a specific name, say, firefox $ ps aux | grep firefox $ top -U johnīonus Read : How to Create Zip and Unzip file in Linux You can also use top or pgrep commands to list processes by user in Linux. Here’s the command to list all processes by a specific user, say, john $ ps -u john The above command will list all running processes.īonus Read : How to Search a File in Linux X = also show processes not attached to a terminal USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND Open terminal and run the following command to list all processes in Linux. We will use ps command to list processes. There are various commands like ps, top, htop and pgrep to list all processes in Linux. Here are the steps to list all processes in Linux/Unix. You can use it to list all processes in Ubuntu, CentOS, Fedora, Redhat, and other Linux systems ![]() Here’s how to list all processes by name, user, PID. Many times you need to list all processes in Linux to find out which processes are running, if a user is running any process, or if a specific process is running.
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