FTP and SFTP

1. Run ftp using a specific account interactively

$ ftp -inv remote_host.domain.com
Connected to remote_host.domain.com (10.133.67.38).
220 Microsoft FTP Service
Remote system type is Windows_NT.
ftp> user ftpuser
331 Password required for ftpuser.
Password:
230 User logged in.
ftp>

Note below line does not work:
$ ftp ftpuser@remote_host.domain.com
ftp: ftpuser@remote_host.domain.com: Name or service not known
ftp> exit

2. Run FTP in a shell script

Assume FTP login info is saved in file $HOME/.netpw in format:

machine WintEdi.domain.COM login ANET/userID password userPWD

REMOTE_PATH=......
LOCAL_PATH=......
REMOTE_MACHINE=WintEdi.domain.COM

function ftp_to_remote

{

ftpuserid=`grep $REMOTE_MACHINE $HOME/.netpw|cut -f4 -d' '`

ftpuserpwd=`grep $REMOTE_MACHINE $HOME/.netpw|cut -f6 -d' '`

ftp -inv <<EndFTP

open $REMOTE_MACHINE

user $ftpuserid $ftpuserpwd

cd $REMOTE_PATH
put $LOCAL_PATH/output.txt ouput1.txt
bye
EndFTP
}

3. Try "man ftp" for help.

4. SFTP options:

$ sftp -oport=2222 ftpuser@remote_host.domain.com
Connecting to remote_host.domain.com...
WARNING: Logon attempts are audited. Access and use allowed for authorized purposes only. Violators will be prosecuted

$ sftp -oIdentityFile=/path/to/sftp_key/id_dsa ftpuser@remote_host.domain.com
Also see https://erpondb.blogspot.com/2015/11/run-scp-or-sftp-without-password.html