Linux下过滤文本、实现高效文件操作的12个实用命(5)

日期：2020-05-30 栏目：程序人生浏览：次

[ 0.000000] Linux version 4.4.0-21-generic (buildd@lgw01-21) (gcc version 5.3.1 20160413 (Ubuntu 5.3.1-14ubuntu2) ) #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 (Ubuntu 4.4.0-21.37-generic

4.4.6)

[ 0.000000] Command line: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic root=UUID=bb29dda3-bdaa-4b39-86cf-4a6dc9634a1b ro quiet splash vt.handoff=7

[ 0.000000] KERNEL supported cpus:

[ 0.000000] Intel GenuineIntel

[ 0.000000] AMD AuthenticAMD

[ 0.000000] Centaur CentaurHauls

[ 0.000000] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256

[ 0.000000] x86/fpu: Supporting XSAVE feature 0x01: 'x87 floating point registers'

[ 0.000000] x86/fpu: Supporting XSAVE feature 0x02: 'SSE registers'

[ 0.000000] x86/fpu: Supporting XSAVE feature 0x04: 'AVX registers'

[ 0.000000] x86/fpu: Enabled xstate features 0x7, context size is 832 bytes, using 'standard' format.

[ 0.000000] x86/fpu: Using 'eager' FPU context switches.

[ 0.000000] e820: BIOS-provided physical RAM map:

[ 0.000000] BIOS-e820: [mem 0x0000000000000000-0x000000000009d3ff] usable

[ 0.000000] BIOS-e820: [mem 0x000000000009d400-0x000000000009ffff] reserved

[ 0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff] reserved

[ 0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000a56affff] usable

[ 0.000000] BIOS-e820: [mem 0x00000000a56b0000-0x00000000a5eaffff] reserved

[ 0.000000] BIOS-e820: [mem 0x00000000a5eb0000-0x00000000aaabefff] usable

--More--

12.less命令

less的用途与上面的more命令恰好相反，不过它提供了额外的功能，处理大文件时要快一点。

可以与more同样的方式来使用它：

linuxidc@linuxidc ~ $ dmesg | less

[ 0.000000] Initializing cgroup subsys cpuset

[ 0.000000] Initializing cgroup subsys cpu

[ 0.000000] Initializing cgroup subsys cpuacct