procinfo – Shows System Statistics from /proc Filesystem

The proc file system is a virtual file system that contains files that store information about processes and other system information. It is mapped to the /proc directory and mounted at boot time. A number of programs retrieve information from /proc file system, process it and provide it readily usable for various purposes.

Procinfo is a simple command line utility for viewing system information collected from /proc directory and prints it beautifully formatted on the standard output device. In this article, we will explain a number of procinfo command examples in Linux.

In most Linux distributions, the procinfo command should come pre-installed, if you don’t have it, install it using following command.

$ sudo apt install procinfo #Debian/Ubuntu
$ sudo yum install procinfo #CentOS/RHEL
$ sudo dnf install procinfo #Fedora 22+

The simplest example is to run procinfo without any arguments as shown.

$ procinfo
Memory: Total Used Free Buffers RAM: 8069036 7693288 375748 301356 Swap: 3906556 0 3906556 Bootup: Mon Jun 4 11:09:45 2018 Load average: 0.35 0.84 1.01 1/1021 15406 user : 01:09:12.02 13.4% page in : 2434469 nice : 00:02:12.37 0.4% page out: 2162544 system: 00:15:17.34 3.0% page act: 2395528 IOwait: 00:39:04.09 7.6% page dea: 3424 hw irq: 00:00:00.00 0.0% page flt: 20783328 sw irq: 00:00:29.07 0.1% swap in : 0 idle : 06:30:26.88 75.6% swap out: 0 uptime: 02:10:11.66 context : 51698643 irq 0: 21 2-edge timer irq 42: 0 466944-edge PCIe irq 1: 3823 1-edge i8042 irq 43: 193892 327680-edge xhci_
irq 8: 1 8-edge rtc0 irq 44: 191759 512000-edge 0000:
irq 9: 2175 9-fasteoi acpi irq 45: 1021515 524288-edge enp1s
irq 12: 6865 12-edge i8042 irq 46: 541926 32768-edge i915 irq 19: 0 19-fasteoi rtl_pc irq 47: 14 360448-edge mei_m
irq 23: 33 23-fasteoi ehci_h irq 48: 344 442368-edge snd_h
irq 40: 0 458752-edge PCIe irq 49: 749 49152-edge snd_hd
irq 41: 0 464896-edge PCIe loop0 90r 0 loop4 14r 0
loop1 159r 0 loop5 7945r 0
loop2 214r 0 loop6 309r 0
loop3 79r 0 sda 112544r 70687w
enp1s0 TX 58.30MiB RX 883.00MiB vmnet8 TX 0.00B RX 0.00B lo TX 853.65KiB RX 853.65KiB wlp2s0 TX 0.00B RX 0.00B vmnet1 TX 0.00B RX 0.00B 

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To print memory stats in human readable format (KiB, MiB, GiB), instead of the default Kbytes, use the -H flag.

$ procinfo -H
Memory: Total Used Free Buffers RAM: 7.70GiB 7.36GiB 344.27MiB 294.38MiB Swap: 3.73GiB 0.00B 3.73GiB Bootup: Mon Jun 4 11:09:45 2018 Load average: 0.61 0.84 1.00 2/1017 15439 user : 01:09:21.25 13.3% page in : 2434613 nice : 00:02:12.43 0.4% page out: 2223808 system: 00:15:19.82 2.9% page act: 2416184 IOwait: 00:39:08.21 7.5% page dea: 3424 hw irq: 00:00:00.00 0.0% page flt: 20891258 sw irq: 00:00:29.08 0.1% swap in : 0 idle : 06:33:48.38 75.7% swap out: 0 uptime: 02:11:06.85 context : 51916194 irq 0: 21 2-edge timer irq 42: 0 466944-edge PCIe irq 1: 3985 1-edge i8042 irq 43: 196957 327680-edge xhci_
irq 8: 1 8-edge rtc0 irq 44: 192411 512000-edge 0000:
irq 9: 2196 9-fasteoi acpi irq 45: 1021900 524288-edge enp1s
irq 12: 6865 12-edge i8042 irq 46: 543742 32768-edge i915 irq 19: 0 19-fasteoi rtl_pc irq 47: 14 360448-edge mei_m
irq 23: 33 23-fasteoi ehci_h irq 48: 344 442368-edge snd_h
irq 40: 0 458752-edge PCIe irq 49: 749 49152-edge snd_hd
irq 41: 0 464896-edge PCIe loop0 90r 0 loop4 14r 0
loop1 159r 0 loop5 7945r 0
loop2 214r 0 loop6 309r 0
loop3 79r 0 sda 112568r 71267w
enp1s0 TX 58.33MiB RX 883.21MiB vmnet8 TX 0.00B RX 0.00B lo TX 854.18KiB RX 854.18KiB wlp2s0 TX 0.00B RX 0.00B vmnet1 TX 0.00B RX 0.00B 

The -d flag allows for displaying statistics on a per-seconds basis rather than as total values.

$ procinfo -d 

To display statistics as totals, use the -D flag as follows.

$ procinfo -D

You can get continues updates on the screen and pause updates for N number of second (for instance 5 seconds in this command) using the -n flag and press q to quit in this mode.

$ procinfo -n5 -H

To report “real” free memory similar to that showed by the free utility, use the -r option.

$ procinfo -r 

To show numbers of bytes instead of number of I/O requests, employ the -b option.

$ procinfo -b

Procinfo works interactively too, when run fullscreen, this allows you to use the d, D, r and b keys whose functions correspond to their same-named command line flags explained above.

For more information, see the procinfo man page.

$ man procinfo 

In this article, we have explained a number of procinfo command examples. If you have any queries, use the feedback form below to reach us.

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