Understanding File Systems and Processes in Linux
A Comprehensive Guide to Working with Process and File System in Linux
Introduction
- Process is an instance of a running program
- Processes have numerical identifiers called PIDs
- Working with processes is crucial in operating systems
- Proc filesystem provides information about processes
Understanding Proc Filesystem
- Proc filesystem is a special filesystem in Linux
- Provides access to kernel-generated information
- Contains directories and files with process information
- Proc filesystem is mounted at /proc directory
Working with Proc Files
- Proc files are virtual files generated on-the-fly
- Proc files can be read to obtain information
- Some proc files are writable to modify kernel parameters
- Use 'cat' or text editors to read proc files
Important Proc Files
- /proc/cmdline: Command line parameters of the kernel
- /proc/meminfo: Information about memory usage
- /proc/loadavg: System load averages
- /proc/cpuinfo: Information about the CPU
Conclusion
- Proc filesystem provides crucial information about processes
- Understanding the proc filesystem is important for working with Linux processes
- Proc files can be read and modified to obtain or tweak system parameters
- Working with proc filesystem improves system monitoring and diagnostics