linux命令之scp

1.scp介绍

linux命令scp用于在两个主机之间安全的复制文件和目录

2.scp用法

scp [参数] <source> <target>

scp常用参数 参数说明-P指定远程主机的端口-p复制文件时，保留原始文件的属性(E

[root@rhel77 ~]# scp 192.168.10.249.txt root@192.168.10.244:/root/
root@192.168.10.244's password: 
192.168.10.249.txt                                                          100%   60    51.7KB/s   00:00    
[root@rhel77 ~]# 

.g：修改次数、访问次数和模式、创建时间等)-r递归复制整个目录-q静默传输模式-v输出详细信息

3.实例

3.1.复制本地文件至远程主机

命令：

scp 192.168.10.249.txt root@192.168.10.244:/root/

[root@rhel77 ~]# scp 192.168.10.249.txt root@192.168.10.244:/root/
root@192.168.10.244's password: 
192.168.10.249.txt                                                          100%   60    51.7KB/s   00:00    
[root@rhel77 ~]# 

[root@logstash ~]# ls -l 192.168.10.249.txt 
-rw-r--r-- 1 root root 60 Nov 17 08:44 192.168.10.249.txt
[root@logstash ~]# cat 192.168.10.249.txt 
192.168.10.249
192.168.10.249
192.168.10.249
192.168.10.249
[root@logstash ~]# 

3.2.复制目录至远程主机

命令：

scp -prqv /root/ztj.bak/ root@192.168.10.244:/root/

[root@rhel77 ~]# scp -prqv /root/ztj.bak/ root@192.168.10.244:/root/
Executing: program /usr/bin/ssh host 192.168.10.244, user root, command scp -v -r -p -t /root/
OpenSSH_7.4p1, OpenSSL 1.0.2k-fips  26 Jan 2017
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: /etc/ssh/ssh_config line 58: Applying options for *
debug1: Connecting to 192.168.10.244 [192.168.10.244] port 22.
debug1: Connection established.
debug1: permanently_set_uid: 0/0
debug1: identity file /root/.ssh/id_rsa type 1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_rsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_dsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_dsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ecdsa type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ecdsa-cert type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ed25519 type -1
debug1: key_load_public: No such file or directory
debug1: identity file /root/.ssh/id_ed25519-cert type -1
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_7.4
debug1: Remote protocol version 2.0, remote software version OpenSSH_7.4
debug1: match: OpenSSH_7.4 pat OpenSSH* compat 0x04000000
debug1: Authenticating to 192.168.10.244:22 as 'root'
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: algorithm: curve25519-sha256
debug1: kex: host key algorithm: ecdsa-sha2-nistp256
debug1: kex: server->client cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: client->server cipher: chacha20-poly1305@openssh.com MAC: <implicit> compression: none
debug1: kex: curve25519-sha256 need=64 dh_need=64
debug1: kex: curve25519-sha256 need=64 dh_need=64
debug1: expecting SSH2_MSG_KEX_ECDH_REPLY
debug1: Server host key: ecdsa-sha2-nistp256 SHA256:EADmS0F6cqxJ00yk8pc9FgPizA/kfgBDdJTOnzrLX6Q
debug1: Host '192.168.10.244' is known and matches the ECDSA host key.
debug1: Found key in /root/.ssh/known_hosts:2
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: rekey after 134217728 blocks
debug1: SSH2_MSG_EXT_INFO received
debug1: kex_input_ext_info: server-sig-algs=<rsa-sha2-256,rsa-sha2-512>
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Next authentication method: gssapi-keyex
debug1: No valid Key exchange context
debug1: Next authentication method: gssapi-with-mic
debug1: Unspecified GSS failure.  Minor code may provide more information
No Kerberos credentials available (default cache: KEYRING:persistent:0)debug1: Unspecified GSS failure.  Minor code may provide more information
No Kerberos credentials available (default cache: KEYRING:persistent:0)debug1: Next authentication method: publickey
debug1: Offering RSA public key: /root/.ssh/id_rsa
debug1: Authentications that can continue: publickey,gssapi-keyex,gssapi-with-mic,password
debug1: Trying private key: /root/.ssh/id_dsa
debug1: Trying private key: /root/.ssh/id_ecdsa
debug1: Trying private key: /root/.ssh/id_ed25519
debug1: Next authentication method: password
root@192.168.10.244's password: 
debug1: Authentication succeeded (password).
Authenticated to 192.168.10.244 ([192.168.10.244]:22).
debug1: channel 0: new [client-session]
debug1: Requesting no-more-sessions@openssh.com
debug1: Entering interactive session.
debug1: pledge: network
debug1: client_input_global_request: rtype hostkeys-00@openssh.com want_reply 0
debug1: Sending environment.
debug1: Sending env LANG = en_US.UTF-8
debug1: Sending command: scp -v -r -p -t /root/
File mtime 1699619416 atime 1700181824
Sending file timestamps: T1699619416 0 1700181824 0
Sink: T1699619416 0 1700181824 0
Entering directory: D0777 0 ztj.bak
Sink: D0777 0 ztj.bak
File mtime 1699407457 atime 1699619299
Sending file timestamps: T1699407457 0 1699619299 0
Sink: T1699407457 0 1699619299 0
Sending file modes: C0644 11 ztj-2.txt
Sink: C0644 11 ztj-2.txt
File mtime 1699407510 atime 1699619297
Sending file timestamps: T1699407510 0 1699619297 0
Sink: T1699407510 0 1699619297 0
Sending file modes: C0644 10 ztj-1.txt
Sink: C0644 10 ztj-1.txt
File mtime 1699619079 atime 1699619100
Sending file timestamps: T1699619079 0 1699619100 0
Sink: T1699619079 0 1699619100 0
Sending file modes: C0755 26 test.sh
Sink: C0755 26 test.sh
Sink: E
debug1: client_input_channel_req: channel 0 rtype exit-status reply 0
debug1: channel 0: free: client-session, nchannels 1
debug1: fd 0 clearing O_NONBLOCK
debug1: fd 1 clearing O_NONBLOCK
Transferred: sent 2836, received 3168 bytes, in 0.1 seconds
Bytes per second: sent 36610.1, received 40895.9
debug1: Exit status 0
[root@rhel77 ~]# 

[root@logstash ~]# ls -ld ztj.bak/
drwxrwxrwx 2 root root 55 Nov 10 20:30 ztj.bak/
[root@logstash ~]# cd ztj.bak/
[root@logstash ztj.bak]# ll
total 12
-rwxr-xr-x 1 root root 26 Nov 10 20:24 test.sh
-rw-r--r-- 1 root root 10 Nov  8 09:38 ztj-1.txt
-rw-r--r-- 1 root root 11 Nov  8 09:37 ztj-2.txt
[root@logstash ztj.bak]#