putty中有pscp程序可以复制文件。
在linux下有scp和sftp访问openssh-server进行文件传输功能，用法详解man手册，比较简单。
sftp类似于ftp，用法相近。
copy from a remote machine to my machine:
scp user@192.168.1.100:/home/remote_user/Desktop/file.txt /home/me/Desktop/file.txt
copy from my machine to a remote machine:
scp /home/me/Desktop/file.txt user@192.168.1.100:/home/remote_user/Desktop/file.txt
copy all file*.txt from a remote machine to my machine (file01.txt, file02.txt, etc.; note the quotation marks:
scp "user@192.168.1.100:/home/remote_user/Desktop/file*.txt" /home/me/Desktop/file.txt
copy a directory from a remote machien to my machine:
scp -r user@192.168.1.100:/home/remote_user/Desktop/files /home/me/Desktop/.