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Linux 新手入门:20 个必备命令,从开机到操作文件全搞定

  • 2026-03-08 16:19:07
Linux 新手入门:20 个必备命令,从开机到操作文件全搞定

无论是采购搭载银河麒麟 Linux 的国产服务器,还是部署 Windows 系统或数据库的服务器,掌握实用操作命令都是高效管理的基础。今天分享的 Linux 命令,能直接应用于各类服务器场景,助力稳定运维,更多服务器品牌及系统配置方案可滑到文章底部了解。

对于 Linux 新手来说,掌握核心基础命令是入门关键。这些命令覆盖文件操作、目录切换、内容查看等高频场景,简单易记,实操性强,10 分钟就能上手使用:

  1. ls
    显示目录中文件及属性,ls -l查看详细信息,ls -a显示隐藏文件;
  2. cd
    切换目录,cd ~回到家目录,cd ..返回上一级,cd -回到上次目录;
  3. pwd
    显示当前工作目录路径,避免操作时 “迷路”;
  4. mkdir
    创建目录,mkdir -p /Dir1/Dir2递归创建多级目录;
  5. touch
    创建空文件,touch File{1..5}.txt批量创建多个文件;
  6. cp
    复制文件 / 目录,cp -r Dir1 Dir2复制目录,cp -a保留原属性;
  7. mv
    移动或重命名,mv File1.cfg File2.cfg重命名,mv File /etc移动文件;
  8. rm
    删除文件 / 目录,rm -f强制删除,rm -rf Dir递归删除目录(慎用);
  9. cat
    查看小文件内容,cat -n显示行号,cat /dev/null > File清空文件;
  10. more
    分页显示大文件,按空格键翻页,Enter 键换行;
  11. less
    分页显示文件,支持前后翻页(PageUp/PageDown),less -N显示行号;
  12. head
    显示文件开头内容,head -n 5 File显示前 5 行;
  13. tail
    查看文件尾部,tail -n 10 File显示后 10 行,tail -f实时刷新日志;
  14. file
    识别文件类型,file File.cfg判断文件格式;
  15. man
    查看命令帮助,man ls获取 ls 命令详细用法,按 q 退出;
  16. passwd
    修改密码,passwd linuxprobe修改指定用户密码;
  17. useradd
    创建用户,useradd -m linuxprobe自动创建家目录;
  18. su
    切换用户身份,su - linuxprobe完全切换用户环境;
  19. clear
    清空终端屏幕,快速整理操作界面;
  20. exit
    退出终端或当前用户登录。

这些命令是 Linux 操作的基础,反复实操就能熟练掌握,后续复杂操作都离不开它们的支撑~

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  1. 请求信息 : 2026-03-27 20:21:57 HTTP/2.0 GET : https://f.mffb.com.cn/a/478401.html
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  1. CONNECT:[ UseTime:0.000545s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000750s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000306s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000260s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000524s ]
  6. SELECT * FROM `set` [ RunTime:0.000239s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000642s ]
  8. SELECT * FROM `article` WHERE `id` = 478401 LIMIT 1 [ RunTime:0.000591s ]
  9. UPDATE `article` SET `lasttime` = 1774614117 WHERE `id` = 478401 [ RunTime:0.003106s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 67 LIMIT 1 [ RunTime:0.000235s ]
  11. SELECT * FROM `article` WHERE `id` < 478401 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000438s ]
  12. SELECT * FROM `article` WHERE `id` > 478401 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000393s ]
  13. SELECT * FROM `article` WHERE `id` < 478401 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000960s ]
  14. SELECT * FROM `article` WHERE `id` < 478401 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001576s ]
  15. SELECT * FROM `article` WHERE `id` < 478401 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001378s ]
0.095996s