Shell Programming and Scripting

wget --no-check-certificate -r  -np --user=ABC --password=DEF -O temp.txt https://<website/directory>

       --post-data=string
       --post-file=file
           Use POST as the method for all HTTP requests and send the specified
           data in the request body.  --post-data sends string as data,
           whereas --post-file sends the contents of file.  Other than that,
           they work in exactly the same way. In particular, they both expect
           content of the form "key1=value1&key2=value2", with percent-encod-
           ing for special characters; the only difference is that one expects
           its content as a command-line paramter and the other accepts its
           content from a file.

STR=$(  printf asdf                     |
        tr 'a-z' 'A-Z'                  |
        iconv -f "UTF-8" -t "UTF-16LE"  |
        sha1sum                         |
        awk '{ for(N=1; N<=length($1); N+=2) printf("\\x" substr($1,N,2)); }'
        )

BASE64=$(printf "$STR" | openssl base64)

echo $BASE64