如何理解Linux系统中的lsmod、lsof、lspci、lsscsi命令及如何实践

lsmod lsmod is a command used to show the status of loaded modules in the Linux kernel. It reads the /proc/modules file to obtain information about all loaded modules. lsof lsof is a command used to list open files in the Linux system. It can be used to check which files are open by which processes. lspci lspci is a command used to list all PCI devices in the system. It can be used to check the status of devices and troubleshoot problems. lsscsi lsscsi is a command used to list all SCSI devices in the system. It can be used to check the status of devices and troubleshoot problems.