Exception handling


 
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# 1  
Old 03-12-2011
Exception handling

Sometimes when I try to use curl to upload to an ftp server, I get the message:

Code:
$curl -T file.wmv ftp.eu.filesonic.com --user user:password

curl: (8) Got a 421 ftp-server response when 220 was expected

How do I get the script to try again if I get the message curl: (8)?
# 2  
Old 03-13-2011
How about the curl "retry" option?

curl returns an non-zero exit status when you get an error and a zero exit status when it works so to handle it in the shell, try...
Code:
while ! curl -T file.wmv ftp.eu.filesonic.com --user user:password
do
    sleep 1
done

The sleep's there just to stop it going off into a rapid loop! See the curl man page for a full list of error codes

Jerry
# 3  
Old 03-13-2011
Pretty much the same as Jerry's solution, just in script form with some extra text and what not.

Code:
(20:18:15\[D@DeCoWork15)
[~]$ cat help
upload ()
{
curl -T ${1} ftp.eu.filesonic.com --user user:password
}

  if [[ -z $1 ]];then
    echo "USAGE: $0 <file to upload>"
    exit 1
  fi


while true;do
  upload ${1}
    if [[ ${?} -ne 0 ]];then
      upload
    else
      echo "$1 uploaded successfully"
      exit 0
    fi
done

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