Looping inside ftp command - linux

Question

I'm wondering if I can in some case add 0-10 files, lets say I have a shell script with video1.jpg, and want it to go up to video10.jpgand start over. The script runs and give video1.jpg, I want it to keep adding +1 up to 10.
#!/bin/bash
ftp -n -v $HOST << EOT
ascii
user $USER $PASSWD
prompt
get video1.jpg
bye
EOT

Answer 1

you can try this
#!/bin/bash
for((i=1;i<=10;i++))
do
ftp -n -v $HOST << EOT
ascii
user $USER $PASSWD
prompt
get video${i}.jpg
bye
EOT
done

Answer 2

I have no chance to try it right now, but this should do:
#!/bin/bash
for i in {1..10}; do
ftp -n -v $HOST << EOT
ascii
user $USER $PASSWD
prompt
get video$i.jpg
bye
EOT
done
EDIT #2: I was wrong, my answer is almost identical to Shravan Yadav's as you can't loop inside an ftp transaction. You can pick either one as the correct answer, but you should prefer his as he came first I guess :)

Answer 3

As other answers have already pointed out, the here document you pass to the ftp program is just text, and does not have a facility for looping. However, generating ten ftp sessions to get ten files is wasteful -- you can generate a single here document which instructs ftp to fetch them all in one session.
#!/bin/bash
(
printf '%s\n' ascii "user $USER $PASSWD" prompt
printf 'get video%i.jpg' {1..10}
printf 'bye\n'
) | ftp -n -v "$HOST"
There will be no facility for proper error handling, though. The real solution is to use a properly scriptable ftp program (lftp, ncftp, what have you) or write your own simple client.

Answer 4

Here is an approach to add ftp inside the loop
#!/bin/bash
HOST='hostname'
USER='username'
PASSWD='password'
# Local directory where the files are stored.
cd "/local/directory/from where to upload files/"
# To get all the files added today only.
TODAYSFILES=`find -maxdepth 1 -type f -mtime -1`
# remote server directory to upload backup
REMOTEDIR="/directory on remote ftp computer/"
for FILENAME in ${TODAYSFILES[#]}; do
ftp -n -v $HOST << EOT
ascii
user $USER $PASSWD
prompt
cd $REMOTEDIR
put $FILENAME
bye
EOT
done