linux操作系统是基于什么操作诞生的?
inux操作系统诞生于1991 年10 月5 日,这是第一次对外公布的时间,创始人林纳斯·托瓦兹。
Linux的基本思想有两点:
第一,一切都是文件;
第二,每个软件都有确定的用途。
其中第一条详细来讲就是系统中的所有都归结为一个文件,包括命令、硬件和软件设备、操作系统、进程等等对于操作系统内核而言,都被视为拥有各自特性或类型的文件。至于说Linux是基于Unix的,很大程度上也是因为这两者的基本思想十分相近。
Linux是一款开源的操作系统,用户可以通过网络或其他途径免费获得,并可以任意修改其源代码。这是其他的操作系统所做不到的。正是由于这一点,来自全世界的无数程序员参与了Linux的修改、编写工作,程序员可以根据自己的兴趣和灵感对其进行改变,这让Linux吸收了无数程序员的精华,不断壮大。
linux sz命令详解?
sz命令会将选定的文件发送到本地机器
要使用sz命令首先要安装他
执行yum install lrzsz安装
然后执行命令sz filename就可以将文件从服务端发送到客户端
更详细的命令参数如下
Usage: sz file …
or: sz -{c|i} COMMAND
Send file(s) with ZMODEM/YMODEM/XMODEM protocol
(X) = option applies to XMODEM only
(Y) = option applies to YMODEM only
(Z) = option applies to ZMODEM only
-+, –append append to existing destination file (Z)
-2, –twostop use 2 stop bits
-4, –try-4k go up to 4K blocksize
–start-4k start with 4K blocksize (doesn't try 8)
-8, –try-8k go up to 8K blocksize
–start-8k start with 8K blocksize
-a, –ascii ASCII transfer (change CR/LF to LF)
-b, –binary binary transfer
-B, –bufsize N buffer N bytes (N==auto: buffer whole file)
-c, –command COMMAND execute remote command COMMAND (Z)
-C, –command-tries N try N times to execute a command (Z)
-d, –dot-to-slash change '.' to '/' in pathnames (Y/Z)
–delay-startup N sleep N seconds before doing anything
-e, –escape escape all control characters (Z)
-E, –rename force receiver to rename files it already has
-f, –full-path send full pathname (Y/Z)
-i, –immediate-command CMD send remote CMD, return immediately (Z)
-h, –help print this usage message
-k, –1k send 1024 byte packets (X)
-L, –packetlen N limit subpacket length to N bytes (Z)
-l, –framelen N limit frame length to N bytes (l>=L) (Z)
-m, –min-bps N stop transmission if BPS below N
-M, –min-bps-time N for at least N seconds (default: 120)
-n, –newer send file if source newer (Z)
-N, –newer-or-longer send file if source newer or longer (Z)
-o, –16-bit-crc use 16 bit CRC instead of 32 bit CRC (Z)
-O, –disable-timeouts disable timeout code, wait forever
-p, –protect protect existing destination file (Z)
-r, –resume resume interrupted file transfer (Z)
-R, –restricted restricted, more secure mode
-q, –quiet quiet (no progress reports)
-s, –stop-at {HH:MM|+N} stop transmission at HH:MM or in N seconds
–tcp build a TCP connection to transmit files
–tcp-server open socket, wait for connection
-u, –unlink unlink file after transmission
-U, –unrestrict turn off restricted mode (if allowed to)
-v, –verbose be verbose, provide debugging information
-w, –windowsize N Window is N bytes (Z)
-X, –xmodem use XMODEM protocol
-y, –overwrite overwrite existing files
-Y, –overwrite-or-skip overwrite existing files, else skip
–ymodem use YMODEM protocol
-Z, –zmodem use ZMODEM protocol
U盘安装Linux详细步骤?
以制作Ubuntu linux系统为例:
1、首先要下载Ubuntu系统,在搜索Ubuntu,打开Ubuntu官网。
2、然后在下载那里,选择桌面版。