sftp命令详解

Looks like sftp doesn't  distinguish Binary files and ASCII files at all. That means it doesnt support the commands like 'bin' or 'ascii' that ftp supports.

sftp> help
 Available commands:
 bye                                Quit sftp
 cd path                            Change remote directory to 'path'
 chgrp grp path                     Change group of file 'path' to 'grp'
 chmod mode path                    Change permissions of file 'path' to 'mode'
 chown own path                     Change owner of file 'path' to 'own'
 df [-hi] [path]                    Display statistics for current directory or
                                    filesystem containing 'path'
 exit                               Quit sftp
 get [-P] remote-path [local-path]  Download file
 help                               Display this help text
 lcd path                           Change local directory to 'path'
 lls [ls-options [path]]            Display local directory listing
 lmkdir path                        Create local directory
 ln oldpath newpath                 Symlink remote file
 lpwd                               Print local working directory
 ls [-1aflnrSt] [path]              Display remote directory listing
 lumask umask                       Set local umask to 'umask'
 mkdir path                         Create remote directory
 progress                           Toggle display of progress meter
 put [-P] local-path [remote-path]  Upload file
 pwd                                Display remote working directory
 quit                               Quit sftp
 rename oldpath newpath             Rename remote file
 rm path                            Delete remote file
 rmdir path                         Remove remote directory
 symlink oldpath newpath            Symlink remote file
 version                            Show SFTP version
 !command                           Execute 'command' in local shell
 !                                  Escape to local shell
 ?                                  Synonym for help 
===================================================
Usage: sftp [options]...
               [profile|[user@]host[#port]]Access remote files using the Secure Shell protocol.
Options:
   -b buffer_size_bytes  Define maximum buffer size for one
                         request (default: 32768 bytes).
   -B batch_file         Use batch file.
   -D, --debug=LEVEL     Set debug level string to LEVEL.
   -N max_requests       Define maximum number of requests sent in
                         parallel (default: 10).
   -P port               Connect to this SSH port on the remote
                         machine (default: 22).
   -v, --verbose         Use verbose mode (equal to `-D 2').
   --keep-alive=VALUE    Send no-operational packet to the server, 
                         each specified amount of time.
   --tcp-connect-timeout=VALUE
                         Overwrite default timeout value that is
                         used when connecting to a server.
   -i file               Use private keys defined in identification
                         file to authenticate with public key method.
   --identity=ID         Use private key 'id' as user identification.
                         The 'id' can be either key id, key hash or 
                         a key file name.
   --identity-key-id=ID  Use key id as a user identification.
   --identity-key-hash=ID
                         Use key hash as a user identification.
   -K, --identity-key-file=FILE
                         Use key file as a user identification.
   --allowed-authentications=METHODS
   --aa=METHODS
                         Allow only selected methods in user
                         authentication. The 'methods' is a comma 
                         separated list of authentication methods.
                         Giving value 'help' lists available methods.
   --kip                 Same as '--aa=keyboard-interactive,password'.
   -c, --ciphers=CIPHERS Allow only selected ciphers to be used.
                         Giving value 'help' lists available ciphers.
   --macs=MACS           Allow only selected MACs to be used.
                         Giving value 'help' lists available MACs.
   --kexs=KEXS           Allow only selected KEX methods to be used.
                         Value 'help' lists available KEX methods.
   --hostkey-algorithms=HOSTKEYALGORITHMS
                         Allow only selected hostkey algorithms to be
                         used. Value 'help' lists available hostkey
                         algorithms
   -C                    Disables compression.
   +C                    Enables zlib compression.
   --compressions=METHODS
                         Allow selected compression methods.
                         Giving value 'help' lists available methods.
   --exclusive           Opens always a new connection, does not share
                         connection.
   --fips                Performs checksums using the FIPS
                         cryptographic library.
   --password=           Set user password. Giving the PASSWORD
         PASSWORD|       directly as the argument is not secure!
         file://FILE|    Give either a path to FILE containing the
         extprog://PROG  password, or a path to external program
                         that will output the password.
   --plugin-path=PATH    Set plugin path to PATH. This is only
                         used in FIPS mode.
   -V, --version         Display program version and exit.
   -q, --quiet           Suppress the printing of error, warning and
                         informational messages.
   -h, --help            Display this help and exit. 
＝＝＝＝＝＝＝＝＝
StringBuffer cmd = new StringBuffer(sftpSSH);
   String space = " ";
   cmd.append(space).append("PUT");
   cmd.append(space).append(ftpInfo.getFtpUser());
   cmd.append(space).append(ftpInfo.getFtpDestination());
   cmd.append(space).append(ftpInfo.getFtpPort());
   cmd.append(space).append(localDir);
   cmd.append(space).append(ftpInfo.getFtpFolder());
   cmd.append(space).append(fileName);
   
   String remoteFileName = ftpInfo.getFtpFileName();
   if(ftpInfo.getFtpFileDateFormat()!=null && ftpInfo.getFtpFileType()!=null)
   {
    Date d = new Date();
    String s  = DateFormatUtils.format(d,ftpInfo.getFtpFileDateFormat());
    remoteFileName=remoteFileName+s;
    remoteFileName=remoteFileName+'.'+ftpInfo.getFtpFileType();
   }
   cmd.append(space).append(remoteFileName);  logger.info("call sftp shell command:" + cmd.toString());
   Process proc = Runtime.getRuntime().exec(cmd.toString());
   　BufferedReader in = new BufferedReader (new InputStreamReader(proc.getInputStream()));
         BufferedReader inE = new BufferedReader (new InputStreamReader(proc.getErrorStream()));
         StringBuffer errMsg = new StringBuffer();
         String s = null;
         errMsg.append("\nSFTP script Stand Output:\n");
         while ((s = in.readLine()) != null){
             s = s.trim();
             errMsg.append(s+"\n");
         }
         errMsg.append("\nSFTP script Err Output:\n");
         while((s = inE.readLine()) != null){
             if(s.trim().length() > 0){
                 errMsg.append(s+"\n");                    
             }
         }
         return errMsg.toString();＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝＝
if [ $CMD = "PUT" ]; then
  logInput $1 $2 $3 $4 $5 $6 $7 $8
   checkLocalDir $5
   checkFileExist "$5$FILESEP$7" $CMD
   
   if [ "$5$FILESEP$7" != "$5$FILESEP$8" ]; then
    cp "$5$FILESEP$7" "$5$FILESEP$8"
   fi
   
         BATCHFTPFILE=/tmp/sftpUtilBatch
         echo lcd $5 > $BATCHFTPFILE
         echo cd $6 >> $BATCHFTPFILE
         echo put $8 >> $BATCHFTPFILE  returnC=`/usr/local/bin/sftp -B $BATCHFTPFILE $2@$3#$4`
   
   if [ $? = 1 ]; then
    echo $returnC >>$LOGFILE
    echo $returnC
          exit 1
   fi
   
   if [ "$5$FILESEP$7" != "$5$FILESEP$8" ]; then
    rm "$5$FILESEP$8"
   fi
   
   echo $returnC >>$LOGFILE
   echo $returnC
         exit 0
 fi ==================

sftp -i ~/.ssh2/identification

.ssh2/下包含identification 文件和xxx.key.pub

identification的内容是key xxx.key.pub

xxx.key.pub的内容是密钥