Linux System Management file and Directory Management Command test

1. 1. View the System CPU and Memory the information.

[[email protected] ~]# Cat/proc/cpuinfo ( view CPU)

processor:0

Vendor_id:genuineintel

CPU Family:6

model:142

Model Name:intel (R) Core (TM) i5-7200u CPU @ 2.50GHz

Stepping:9

CPU mhz:2712.000

Cache size:3072kb

Fpu:yes

Fpu_exception:yes

CPUID level:22

Wp:yes

Flags:fpuvme de PSE TSC MSR PAE cx8 APIC Sep MTRR PGE MCA cmov Pat PSE36 clflush dtsmmx fxsr SSE SSE2 SS Sysca ll NX PDPE1GB rdtscp LM constant_tsc up arch_perfmonpebs BTS xtopology tsc_reliable nonstop_tsc aperfmperf unfair_spinlock PNIPCLMULQDQ ssse3 FMA cx16 pcid sse4_1 sse4_2 x2apic movbe popcnttsc_deadline_timer AES Xsave AVX f16c Rdrand hypervisor LAHF_LM abm3dnowprefetch Ida Arat EPB xsaveopt PLN pts DTS fsgsbase bmi1 avx2 SMEP bmi2invpcid

bogomips:5424.00

Clflush size:64

Cache_alignment:64

Address Sizes:42bits physical, bits virtual

Power Management:

[[email protected] ~]# Cat/proc/meminfo ( view memory)

memtotal:1004412 KB

memfree:904152 KB

buffers:9844 KB

cached:28600 KB

swapcached:0 KB

active:19440 KB

inactive:27952 KB

Active (anon): 8976 KB

Inactive (anon): 196 KB

Active (file): 10464 KB

Inactive (file): 27756 KB

unevictable:0 KB

mlocked:0 KB

swaptotal:1023992 KB

swapfree:1023992 KB

dirty:56 KB

writeback:0 KB

anonpages:8964 KB

mapped:6176 KB

shmem:224 KB

slab:30892 KB

sreclaimable:8848 KB

sunreclaim:22044 KB

kernelstack:592 KB

pagetables:1744 KB

nfs_unstable:0 KB

bounce:0 KB

writebacktmp:0 KB

commitlimit:1526196 KB

committed_as:52656 KB

vmalloctotal:34359738367 KB

vmallocused:153184 KB

vmallocchunk:34359579312 KB

hardwarecorrupted:0 KB

anonhugepages:0 KB

hugepages_total:0

hugepages_free:0

hugepages_rsvd:0

hugepages_surp:0

hugepagesize:2048 KB

directmap4k:6144 KB

directmap2m:1042432 KB

directmap1g:0 KB

1. 2. will be /etc/passwd files are copied to /root/passwd file.

[email protected] ~]# cp/etc/passwd/root/passwd ( will be /etc/passwd files are copied to /root/passwd file )

Cp:overwrite '/root/passwd '? Y

1. 3. use a command to create a /test directory, and make the directory /test/user1 , /test/user2 two sub-directories.

[[email protected] ~]# mkdir-p/test/{user1,user2}

[Email protected]/]# tree/test

/test

├──user1

└──user2

1. 4. will be / etc directory is copied to / tmp directory, and maintain the original permissions.

[Email protected]/]# cp-frp/etc/tmp/

[Email protected]/]# ls/tmp/

etc

1. 5. in the /root Create an empty file under directory file1 , file2 , File3, complete with a command.

[[email protected]/]# Touch/root/{file1,file2,file3}

[[email protected]/]# ls/root/|grep file

File1

File2

File3

1. 6. Find /root directory to file the files that begin with, and delete them. Complete with a single command.

[Email protected]/]# find/root/-type f-name "file*" |xargs rm-f

[[email protected]/]# ls/root/|grep file

[Email protected]/]# ls/root/

A b install.log zhou2

Anaconda-ks.cfg c.txt install.log.syslog passwd zhou3

A.txt Eet.txt Zhou4

1. 7. using the Find , the WC command combined with a pipe character to count How many directories the current Linux system contains.

[Email protected]/]# Find/-type d|wc-l

Find: '/PROC/2700/TASK/2700/FD/5 ': No such file ordirectory

Find: '/PROC/2700/TASK/2700/FDINFO/5 ': No such file ordirectory

Find: '/PROC/2700/FD/5 ': No such file or directory

Find: '/PROC/2700/FDINFO/5 ': No such file or directory

11636

1. 8. find files in the/boot directory that have a size greater than 1024KB and whose name begins with "Vmlinuz"

[Email protected]/]# find/boot/-size +1024-name "vmlinuz*"

/boot/vmlinuz-2.6.32-431.el6.x86_64

1. 9. How to view the kernel version

[Email protected]/]# uname-r

2.6.32-431.el6.x86_64

1. . in CentOS 6.5, how to represent the 2nd logical partition of a third SCSI hard disk

Answer: SDC6

1. One by one . how to turn off or restart the CentOS 6.5

Answer: Shutdown: halt,poweroff,shutdown-h now

Restart: Reboot,shutdown-r Now

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Linux System Management file and Directory Management Command test