rz和sz是Linux/Unix同Windows進行Zmodem檔案傳輸的指令工具,都使用Zmodem檔案傳輸協定。
- rz: receive zmodem的縮寫，運作該指令會彈出一個檔案選擇視窗，從本地選擇檔案上傳到Linux伺服器。
- sz: send zmodem的縮寫，将標明的檔案發送（send）到本地伺服器，即從Linux下載下傳到Windows系統；
驗證sz、rz軟體包是否已經安裝：
rpm -qa | grep lrzsz
yum install -y lrzsz
sz指令
sz指令是利用ZModem協定來從Linux伺服器傳送檔案到本地，一次可以傳送一個或多個檔案。
常用參數：
-a ： 以文本方式傳輸（ascii）。
-b ： 以二進制方式傳輸（binary）。
-e ： 對控制字元轉義（escape），這可以保證檔案傳輸正确。
[[email protected] test]$ sz --help
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
常用指令：
- 如果能夠确定所傳輸的檔案是文本格式的，使用 sz -a files
- 如果是二進制檔案，使用 sz -be files
将123.xlsx檔案下載下傳到windows系統中（預設位置在桌面上）：
sz -y 123.xlsx
sz -a 123.xlsx
rz指令
rz：運作該指令會彈出一個檔案選擇視窗，從本地選擇檔案上傳到Linux伺服器。使用rz -y 指令時會彈出選擇檔案對話框
常用參數：
-b ： 以二進制方式，預設為文本方式。（Binary (tell it like it is) file transfer override.）
-e ： 對所有控制字元轉義。（Force sender to escape all control characters; normally XON, XOFF, DLE, [email protected], and Ctrl-X are escaped.）
[[email protected] test]$ rz --help
rz version 0.12.20
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
上傳檔案到伺服器：
rz -y