Difference between revisions of "LinuxCommands"
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'''dmidecode -q''': Show the system hardware information.<br> | '''dmidecode -q''': Show the system hardware information.<br> | ||
<pre>[root@localhost ~]# dmidecode -q | <pre>[root@localhost ~]# dmidecode -q | ||
| − | </pre> | + | </pre> |
'''hdparm -i /dev/hda''': Show harddisk information. | '''hdparm -i /dev/hda''': Show harddisk information. | ||
| − | + | <br> | |
'''hdparm -tT /dev/sda''': Do a read test. | '''hdparm -tT /dev/sda''': Do a read test. | ||
| − | + | <br> | |
'''cat /proc/cpuinfo''': Show CPU information. | '''cat /proc/cpuinfo''': Show CPU information. | ||
<pre>[root@localhost ~]# cat /proc/cpuinfo | <pre>[root@localhost ~]# cat /proc/cpuinfo | ||
| + | processor : 0 | ||
| + | vendor_id : GenuineIntel | ||
| + | cpu family : 6 | ||
| + | model : 58 | ||
| + | model name : Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz | ||
| + | stepping : 9 | ||
| + | microcode : 0x15 | ||
| + | cpu MHz : 2891.250 | ||
| + | cache size : 4096 KB | ||
| + | fpu : yes | ||
| + | fpu_exception : yes | ||
| + | cpuid level : 13 | ||
| + | wp : yes | ||
| + | flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave avx f16c rdrand hypervisor lahf_lm ida arat epb xsaveopt pln pts dtherm fsgsbase smep | ||
| + | bogomips : 5782.50 | ||
| + | clflush size : 64 | ||
| + | cache_alignment : 64 | ||
| + | address sizes : 40 bits physical, 48 bits virtual | ||
| + | power management: | ||
| − | + | </pre> | |
'''cat /proc/interrupts''': Show IRQ information. | '''cat /proc/interrupts''': Show IRQ information. | ||
Revision as of 11:17, 2 February 2014
Overview
This article describes several linux user space commands that can be useful for doing several tasks
Contents
System Information
arch: Show the machine arch.
uname -m: Show machine arch.
[jdoe@localhost ~]$ arch x86_64 [jdoe@localhost ~]$ uname -m x86_64
uname -r: Show the kernel version.
cat /proc/version: Show kernel version (extra information).
[jdoe@localhost ~]$ uname -r 3.11.10-301.fc20.x86_64 [jdoe@localhost ~]$ cat /proc/version Linux version 3.11.10-301.fc20.x86_64 (mockbuild@bkernel01.phx2.fedoraproject.org) (gcc version 4.8.2 20131017 (Red Hat 4.8.2-1) (GCC) ) #1 SMP Thu Dec 5 14:01:17 UTC 2013
dmidecode -q: Show the system hardware information.
[root@localhost ~]# dmidecode -q
hdparm -i /dev/hda: Show harddisk information.
hdparm -tT /dev/sda: Do a read test.
cat /proc/cpuinfo: Show CPU information.
[root@localhost ~]# cat /proc/cpuinfo processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 58 model name : Intel(R) Core(TM) i7-3520M CPU @ 2.90GHz stepping : 9 microcode : 0x15 cpu MHz : 2891.250 cache size : 4096 KB fpu : yes fpu_exception : yes cpuid level : 13 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts mmx fxsr sse sse2 ss syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts nopl xtopology tsc_reliable nonstop_tsc aperfmperf eagerfpu pni pclmulqdq ssse3 cx16 pcid sse4_1 sse4_2 x2apic popcnt aes xsave avx f16c rdrand hypervisor lahf_lm ida arat epb xsaveopt pln pts dtherm fsgsbase smep bogomips : 5782.50 clflush size : 64 cache_alignment : 64 address sizes : 40 bits physical, 48 bits virtual power management:
cat /proc/interrupts: Show IRQ information.
cat /proc/meminfo: Show Memory status.
cat /proc/swaps: Show swap files.
cat /proc/net/dev: Show Network adapters and statistics.
cat /proc/mounts: Show mounted volumes in the system.
lspci -tv: Show PCI devices.
lsusb -tv: Show USB devices.
date: Show the system date.
cal 2014: Show calendar <cal + year>
cal 07 2014: Show month.
date 041217002011.00: set date (set, adjust) date y hour.
clock -w: Save date changes in BIOS.
<tt>[jdoe@localhost ~]$ arch</tt>
<tt>x86_64</tt>
<tt>[jdoe@localhost ~]$ uname -m</tt>
<tt>x86_64 </tt>
