Linux - sh script - download multiple files from FTP -


i need script can download files ftp via sh code

i have use expect ftp, if loop inside code, got

wrong # args: should "for start test next command" while executing "for v in "a b c""

my code

/usr/bin/expect << except_script set timeout 1 spawn ftp -n ${host} send "user ${user} ${passwd}\n"  expect "ftp>" send "bin\n" expect "ftp>" send "dir\n"  v in "${files_to_download[@]}"   ftp_file="${v}.bz2"    #download file   echo ${ftp_file}      #put code dl here  done    expect "ftp>"  send "bye\n" except_script

wget

expect can tricky work i'd prefer use gnu wget alternative. following should work long don’t have spaces in of arguments.

for v in "${files_to_download[@]}"   ftp_file="${v}.bz2"   wget --user=${user} --password=${passwd} ${host}/${ftp_file} done

request multiple resources using 1 ftp connection

if it’s issue, can avoid having make multiple ftp connections server using ftp globbing (wildcard characters), e.g.

wget --user=${user} --password=${passwd} "${host}/*.bz2"

make sure url quoted shell doesn’t expand wildcard. can use -nc, --no-clobber option avoid re-downloading files have been downloaded.

on other hand, requesting multiple resources (wget url2 url2 ...) does result in multiple ftp logins.

note: checked both of above operations monitoring port 21 on own ftp server tcpdump.

ncftp

you may interested in ncftp. while haven’t used in years, found – , ncftpget , ncftpput utilities – easier use command line scripting standard unix ftp program.


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