# lsof –p PIDĬount number of files & processes ~]# lsof -p 4271 | wc ~]#Ĭheck the currently opened log file # lsof –p | grep logįind out the port number used by the process lsof -i -P |grep $PID ~]# lsof -i -P |grep 4271 To list, all the files opened by a particular PID. The lsof utility can be convenient to use in some scenarios. Lsof stands for “ list open files” to help you to find all the opened files and processes along with the one who opened them. Note: Some of the commands listed below may not be installed by default, so you got to install them manually. Let’s go through some of the most used Linux command-line utilities to diagnose performance-related issues. If you are working as a support in a production environment then most probably you will need to deal with performance-related issues in the Linux environment. When you have some spare time, take a look at the /proc filesystem on your Linux system for other system information you can find, including /proc/loadavg, /proc/vmstat, and much more.A troubleshooting performance related issue in the IT world is always challenging, and if you were not aware of the right tools, then it would be frustrating. I hope these Linux processor and memory commands have been helpful. Summary: Linux processor and memory commands When I issue the Linux memory information command, I see the following output:Īs you can see, my current Linux system has 2 GB RAM, with all the additional memory information shown there. Model name : Intel(R) Pentium(R) 4 CPU 3.00GHzįlags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe constant_tsc pni monitor ds_cpl cid xtprįrom that output I can see my current system is a two-processor Intel system, with additional information about the Intel CPU (CPUs, actually). When I issue that Linux processor information command on my current hardware system, I see this output: (See below for sample output.) Linux processor command output

To see your Linux memory information and memory stats use this command:

(See below for sample processor output.) How to show Linux memory information To see what type of processor/CPU your computer system has, use this Linux command:Īs you can see, all you have to do is use the Linux cat command on this special /proc/cpuinfo file on your Linux system. Linux FAQ: How can I find Linux processor and memory information? (Also written as, How can I find Linux CPU information?, How can I find Linux RAM information?) How to show the Linux CPU/processor

Linux cpu stats