Significance of Linux/proc

/Proc is a virtual file system, that is, the modification will be reinitialized after the reboot

Provides process information, memory resources, hardware devices, kernel memory, and other information.

For example:

NIC:/proc/sys/vm/ipv4/ip_forward: control ip Forwarding

Memory:/proc/sys/vm/drop_caches: Input 1 force the kernel to release some memory from the cache

We recommend that you use strings to view the information, not cat

In my opinion, the greatest value of/proc is:

We can use the relevant files in this directory to compile the gadgets we need.

Currently, many system gadgets use files under/proc.

For example:

Uname ==>/proc/version

Ps top ==>/proc/<PID>

Vmstat free ==>/proc/meminfo/proc/swaps

Ifconfig netstat ==>/proc/net

Recommended reading:

Disk Performance Parameters in proc in Linux

Linux/proc Article 1 ---->/proc/pid

Linux Certification: Linux/proc file system