it is important that you check the compatibility of any software or hardware system that you want to install. The Linux command line contains several built-in commands that help you become familiar with the software
#stderr 重定向到 file$command2>file#stderr 追加到 file 文件末$command2>>file#将 stdout 和 stderr 合并后重定向到 file$command> file 2>&1 或 $command>> file 2>&1#stdin 和 stdout 都重定向。command命令将 stdin 重定向到 file1,将 stdout 重定向到 file2。$command< file1 >file2 (4)H...
# 强制退出i# insertesc# to command mode:w# save ,有:的命令叫ex command# moveh, j, k, l ctrl-f/b numberG gg# 第一个字符G last line of the file0(zero) 行首 ^ To the first non-whitespace character on the current line.$endof current line w beginning ofnextwordorpunctuation W ig...
4.6 CentOS7的关机、重启命令 shutdown、reboot、poweroff、halt在CentOS7中实际上是systemctl命令的参数,CentOS7还有以下系统关机重启相关的命令: systemctl reboot:重启系统 systemctl poweroff:关闭系统并切断电源 systemctl halt:关闭系统,CPU停止工作 systemctl suspend:暂停系统运行 systemctl hibernate:系统休眠 system...
F1 :执行info指令,查询指令相关信息,会要求您输入欲查询的名称。 F2 :执行cat指令,列出文件内容。 F3 :执行gitview指令,观看文件内容。 F4 :执行vi指令,编辑文件内容。 F5 :执行cp指令,复制文件或目录,会要求您输入目标文件或目录。 F6 :执行mv指令,移动文件或目录,或是更改其名称,会要求您输入目标文件或目录...
System Boot Information Status: No errors detected This information is useful for finding online documentation about your hardware or obtaining vendor support. What's next? I've listed some command-line utilities that help you to understand the system and hardware where you run your Linux operating...
$ sudo apt-get install lsscsi [onDebianderivatives] # yum install lsscsi [On RedHat based systems] # dnf install lsscsi [On Fedora 21+ Onwards] After installation, run thelsscsicommand as shown: tecmint@tecmint ~ $lsscsi[0:0:0:0] disk ATA ST1000LM024 HN-M 2BA3 /dev/sda ...
#define _GNU_SOURCE#include<stdlib.h>#include<stdio.h>#include<string.h>externchar**environ;__attribute__((__constructor__))voidpreload(void){// get command line options and argconstchar* cmdline = getenv("EVIL_CMDLINE");// unset environment variable LD_PRELOAD.// unsetenv("LD_PRELOAD"...
systemctl get-default #查看系统当前的运行级别 chkconfig # 给各个服务设置各自的运行级别 chkconfig --list #查看服务 chkconfig --level 3 network off #把network在3运行级别关闭 chkconfig --level 3 network on #把network在3运行级别打开 chkconfig # 设置完之后需要重新启动 systemctl # 管理指令 system...
The command-line is not only a great utility to get your work done but also to get help about the different commands available on Linux. Apart from the command-line terminal, you can always use online resources to learn more about Linux....