CentOS - Jan 2009 - Bash cgi upload form

Anyone have a function or script for uploading files from a web
browser with a bash script?  I know this is possible to do with Perl,
I'm wondering if the same is possible using only bash.

Sean Carolan wrote:
> Anyone have a function or script for uploading files from a web
> browser with a bash script?  I know this is possible to do with Perl,
> I'm wondering if the same is possible using only bash.
>   
um, you download from a webserver, and upload to one.

wget or curl can be used to download a file from a webserver.

uploading a file TO a webserver requires more infromation, such as what 
upload protocols and authentication does the server support/require?  
one method that can be used is DAV aka WebDAV, cadaver is a command line 
WebDAV client included with CentOS.  

If I'm dealing with a webserver I manage I more frequently use scp 
and/or rsync to move files to/from the server, this typically requires 
user credentials suitable for a ssh login on the server

    $ scp user at hostname:path/to/filename localpath

or

    $ scp path/to/localfile user at hostname:path/to/remote


exchange ssh key credentials first so no password is required.

> From: Sean Carolan <scarolan at gmail.com>
> 
> Anyone have a function or script for uploading files from a web
> browser with a bash script?  I know this is possible to do with Perl,
> I'm wondering if the same is possible using only bash.
I use curl.
It can be a bit tricky if you use POSTDATA...
Here's the function I use:

# upload_file <URL> <POSTDATA> <FILE>
function upload_file() {
  URL="$1"
  DATA="$2"
  FILE="$3"
  PARAMS="-F \"file=@$FILE\""
  IFS="&"
  for PARAM in $DATA
    do
      PARAMS="$PARAMS -F \"$PARAM\""
    done
  IFS=" "
  eval `echo curl $PARAMS $URL 2>/dev/null`
  if [ $? -ne 0 ]; then echo "curl error $?"; fi
}

JD