I'm trying to write a bash script that uploads a file to a server. How can I achieve this? Is a bash script the right thing to use for this?
问题:
回答1:
Below are two answers. First is a suggestion to use a more secure/flexible solution like ssh/scp/sftp. Second is an explanation of how to run ftp in batch mode.
A secure solution:
You really should use SSH/SCP/SFTP for this rather than FTP. SSH/SCP have the benefits of being more secure and working with public/private keys which allows it to run without a username or password.
You can send a single file:
scp <file to upload> <username>@<hostname>:<destination path>
Or a whole directory:
scp -r <directory to upload> <username>@<hostname>:<destination path>
For more details on setting up keys and moving files to the server with RSYNC, which is useful if you have a lot of files to move, or if you sometimes get just one new file among a set of random files, take a look at:
http://troy.jdmz.net/rsync/index.html
You can also execute a single command after sshing into a server:
From man ssh
ssh [...snipped...] hostname [command] If command is specified, it is executed on the remote host instead of a login shell.
So, an example command is:
ssh username@hostname.example bunzip file_just_sent.bz2
If you can use SFTP with keys to gain the benefit of a secured connection, there are two tricks I've used to execute commands.
First, you can pass commands using echo and pipe
echo "put files*.xml" | sftp -p -i ~/.ssh/key_name username@hostname.example
You can also use a batchfile with the -b
parameter:
sftp -b batchfile.txt ~/.ssh/key_name username@hostname.example
An FTP solution, if you really need it:
If you understand that FTP is insecure and more limited and you really really want to script it...
There's a great article on this at http://www.stratigery.com/scripting.ftp.html
#!/bin/sh
HOST='ftp.example.com'
USER='yourid'
PASSWD='yourpw'
FILE='file.txt'
ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
binary
put $FILE
quit
END_SCRIPT
exit 0
The "-n" to ftp ensures that the command won't try to get the password from the current terminal. The other fancy part is the use of a heredoc: the <<END_SCRIPT
starts the heredoc and then that exact same END_SCRIPT
on the beginning of the line by itself ends the heredoc. The binary
command will set it to binary mode which helps if you are transferring something other than a text file.
回答2:
You can use a heredoc to do this e.g.
ftp -n $Server <<End-Of-Session
# -n option disables auto-logon
user anonymous "$Password"
binary
cd $Directory
put "$Filename.lsm"
put "$Filename.tar.gz"
bye
End-Of-Session
so the ftp process is fed on stdin with everything up to End-Of-Session
. A useful tip for spawning any process, not just ftp! Note that this saves spawning a separate process (echo, cat etc.). Not a major resource saving, but worth bearing in mind.
回答3:
Install ncftpput and ncftpget. They're usually part of the same package.
回答4:
command in one line:
ftp -in -u ftp://username:password@servername/path/to/ localfile
回答5:
use this to upload a file to a remote location
#!/bin/bash
#$1 is the file name
#usage:this_script <filename>
HOST='your host'
USER="your user"
PASSWD="pass"
FILE="abc.php"
REMOTEPATH='/html'
ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
cd $REMOTEPATH
put $FILE
quit
END_SCRIPT
exit 0
回答6:
#/bin/bash
# $1 is the file name
# usage: this_script <filename>
IP_address="xx.xxx.xx.xx"
username="username"
domain=my.ftp.domain
password=password
echo "
verbose
open $IP_address
USER $username $password
put $1
bye
" | ftp -n > ftp_$$.log
回答7:
No need to complicate stuff - this should work:
#/bin/bash
echo "
verbose
open ftp.mydomain.net
user myusername mypassword
ascii
put textfile1
put textfile2
bin
put binaryfile1
put binaryfile2
bye
" | ftp -n > ftp_$$.log
or you can use mput if you have many files ...
回答8:
Working Example to Put Your File on Root ...........see its very simple
#!/bin/sh
HOST='ftp.users.qwest.net'
USER='yourid'
PASSWD='yourpw'
FILE='file.txt'
ftp -n $HOST <<END_SCRIPT
quote USER $USER
quote PASS $PASSWD
put $FILE
quit
END_SCRIPT
exit 0
回答9:
cd C:\Program Files (x86)\WinSCP
winscp.exe /console /command "open UserName:**@Server" "put File path"
回答10:
if you want to use it inside a 'for' to copy the last generated files for a every-day bacakup...
j=0
var="`find /backup/path/ -name 'something*' -type f -mtime -1`"
#we have in $var some files with last day change date
for i in $var
do
j=$(( $j + 1 ))
dirname="`dirname $i`"
filename="`basename $i`"
/usr/bin/ftp -in >> /tmp/ftp.good 2>> /tmp/ftp.bad << EOF
open 123.456.789.012
user user_name passwd
bin
lcd $dirname
put $filename
quit
EOF #end of ftp
done #end of for iteration
回答11:
echo -e "open <ftp.hostname>\nuser <username> <password>\nbinary\nmkdir New_Folder\nquit"|ftp -nv