通过SecureCRT上传和下载文件（CentOS 7）

通过SecureCRT上传和下载文件（CentOS 7）

一、lrzsz简介

1.lrzsz是什么

lrzsz是一款在linux里可代替ftp上传和下载的程序。

2.名称的解释

• l :暂时不知道
• rz : Receive ZMODEM
• sz : Send ZMODEM

3.ZMODEM协议

https://baike.baidu.com/item/Zmodem%E5%8D%8F%E8%AE%AE/1444157?fr=aladdin

4.相关网址

github 项目地址: https://github.com/jnavila/lrzsz

二、 安装方式

1. 通过yum安装

# 安装 (需要root权限)
yum install -y lrzsz
# 查看版本
rz --version
# rz (lrzsz) 0.12.20 (这应该是最后一个版本了)

三、使用方式

1. rz的使用

Usage: rz [options] [filename.if.xmodem]
Receive files 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 files
-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, --with-crc Use 16 bit CRC (X)
-C, --allow-remote-commands allow execution of remote commands (Z)
-D, --null write all received data to /dev/null
–delay-startup N sleep N seconds before doing anything
-e, --escape Escape control characters (Z)
-E, --rename rename any files already existing
–errors N generate CRC error every N bytes (debugging)
-h, --help Help, print this usage message
-m, --min-bps N stop transmission if BPS below N
-M, --min-bps-time N for at least N seconds (default: 120)
-O, --disable-timeouts disable timeout code, wait forever for data
–o-sync open output file(s) in synchronous write mode
-p, --protect protect existing files
-q, --quiet quiet, no progress reports
-r, --resume try to resume interrupted file transfer (Z)
-R, --restricted restricted, more secure mode
-s, --stop-at {HH:MM|+N} stop transmission at HH:MM or in N seconds
-S, --timesync request remote time (twice: set local time)
–syslog[=off] turn syslog on or off, if possible
-t, --timeout N set timeout to N tenths of a second
-u, --keep-uppercase keep upper case filenames
-U, --unrestrict disable 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 Yes, clobber existing file if any
–ymodem use YMODEM protocol
-Z, --zmodem use ZMODEM protocol

short options use the same arguments as the long ones

命令格式：

rz [选项]

选项说明：

-+, --append:将文件内容追加到已存在的同名文件

-a,–ascii:以文本方式传输

-b, --binary:以二进制方式传输，推荐使用

–delay-startup N:等待N秒

-e, --escape:对所有控制字符转义，建议使用

-E, --rename:已存在同名文件则重命名新上传的文件，以点和数字作为后缀

-p, --protect:对ZMODEM协议有效，如果目标文件已存在则跳过 -

-q, --quiet:安静执行，不输出提示信息

-v, --verbose:输出传输过程中的提示信息

-y, --overwrite:存在同名文件则替换

-X, --xmodem:使用XMODEM协议

–ymodem:使用YMODEM协议

-Z, --zmodem:使用ZMODEM协议

–version：显示版本信息

–h, --help：显示帮助信息

2. sz 的使用

sz version 0.12.20
Usage: sz [options] file …
or: sz [options] -{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

short options use the same arguments as the long ones

四、参考资料

1. 流光瞬息.Linux命令之rz命令与sz命令 :https://www.cnblogs.com/leeyongbard/p/9356760.html

五、 后记

暂时到这-2020-11-27