Red Hat ENTERPRISE LINUX 5.4 - SYSTEMTAP BEGINNERS GUIDE Technické informace stáhnout pdf (Strana 54)

40 System Analysis and Tuning Guide

Capabilities: [dc] Power Management version 2

Capabilities: [e4] PCI-X non-bridge device

Kernel driver in use: e1000

Kernel modules: e1000

Information about device name resolution is obtained from the file /usr/share/

pci.ids. PCI IDs not listed in this file are marked “Unknown device.”

The parameter -vv produces all the information that could be queried by the pro-

gram. To view the pure numeric values, use the parameter -n.

2.7.2 USB Devices: lsusb

The command lsusb lists all USB devices. With the option -v, print a more de-

tailed list. The detailed information is read from the directory /proc/bus/usb/.

The following is the output of lsusb with these USB devices attached: hub, memory

stick, hard disk and mouse.

mercury:/ # lsusb

Bus 004 Device 007: ID 0ea0:2168 Ours Technology, Inc. Transcend JetFlash \

2.0 / Astone USB Drive

Bus 004 Device 006: ID 04b4:6830 Cypress Semiconductor Corp. USB-2.0 IDE \

Adapter

Bus 004 Device 005: ID 05e3:0605 Genesys Logic, Inc.

Bus 004 Device 001: ID 0000:0000

Bus 003 Device 001: ID 0000:0000

Bus 002 Device 001: ID 0000:0000

Bus 001 Device 005: ID 046d:c012 Logitech, Inc. Optical Mouse

Bus 001 Device 001: ID 0000:0000

2.8 Files and File Systems

2.8.1 Determine the File Type: file

The command file determines the type of a file or a list of files by checking /

usr/share/misc/magic.

tux@mercury:~> file /usr/bin/file

/usr/bin/file: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), \

for GNU/Linux 2.6.4, dynamically linked (uses shared libs), stripped

The parameter -f list specifies a file with a list of filenames to examine. The -z

allows file to look inside compressed files:

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 239 240

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Red Hat ENTERPRISE LINUX 5.4 - SYSTEMTAP BEGINNERS GUIDE Technické informace Strana 54