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下载fnl数据的脚本

#!/usr/bin/perl -w
#################################################################
# Perl Script to retrieve 124 online Data files of 'ds083.2',
# total 2.38G. This script uses 'wget' to download data.
#
# Highlight this script by Select All, Copy and Paste it into a file;
# make the file executable and run it on command line.
#
# You need pass in your password as a parameter to execute
# this script; or you can set an environment variable RDAPSWD
# if your Operating System supports it.
#
# Contact grace@ucar.edu (Grace Peng) for further assistance.
#################################################################

use strict;
my ($syscmd, $vn, $opt, $i, @filelist);
my $pswd = (@ARGV ? $ARGV[0] : $ENV{RDAPSWD});
if(!$pswd) {
 print "\n Usage: $0 YourPassword\n\n";
 exit 1;
}
open VN, "wget -V |" or die 'cannot find wget';
$vn = (<VN> =~ /^GNU Wget (\d+)\.(\d+)/) ? (100 * $1 + $2) : 109;
close(VN);
$syscmd = ($vn > 109 ? 'wget --no-check-certificate' : 'wget');
$syscmd .= ' -O Authentication.log --save-cookies auth.rda_ucar_edu --post-data' .
"=\"email=heqin\@cumt.edu.cn&passwd=$pswd&action=login\" " .
'https://rda.ucar.edu/cgi-bin/login';
system($syscmd);
$opt = 'wget -N';
$opt .= ' --no-check-certificate' if($vn > 109);
$opt .= ' --load-cookies auth.rda_ucar_edu ' .
'http://rda.ucar.edu/data/ds083.2/';
@filelist = (
  "grib2/2017/2017.01/fnl_20170101_00_00.grib2",
  "grib2/2017/2017.01/fnl_20170131_18_00.grib2",
);
for($i = 0; $i < @filelist; $i++) {
  $syscmd = $opt . $filelist[$i];
  print "$syscmd...\n";
  system($syscmd);
}
system('rm -f auth.rda_ucar_edu Authentication.log');
exit 0;

#!/bin/csh
#################################################################
# Csh Script to retrieve 2 online Data files of 'ds083.2',
# total 28.65M. This script uses 'wget' to download data.
#
# Highlight this script by Select All, Copy and Paste it into a file;
# make the file executable and run it on command line.
#
# You need pass in your password as a parameter to execute
# this script; or you can set an environment variable RDAPSWD
# if your Operating System supports it.
#
# Contact schuster@ucar.edu (Doug Schuster) for further assistance.
#################################################################

set pswd = $1
if(x$pswd == x && `env | grep RDAPSWD` != '') then
 set pswd = $RDAPSWD
endif
if(x$pswd == x) then
 echo
 echo Usage: $0 YourPassword
 echo
 exit 1
endif
set v = `wget -V |grep 'GNU Wget ' | cut -d ' ' -f 3`
set a = `echo $v | cut -d '.' -f 1`
set b = `echo $v | cut -d '.' -f 2`
if(100 * $a + $b > 109) then
 set opt = 'wget --no-check-certificate'
else
 set opt = 'wget'
endif
set opt1 = '-O Authentication.log --save-cookies auth.rda_ucar_edu --post-data'
set opt2 = "email=heqin@cumt.edu.cn&passwd=$pswd&action=login"
$opt $opt1="$opt2" https://rda.ucar.edu/cgi-bin/login
set opt1 = "-N --load-cookies auth.rda_ucar_edu"
set opt2 = "$opt $opt1 http://rda.ucar.edu/data/ds083.2/"
set filelist = ( \
  grib2/2015/2015.01/fnl_20150101_00_00.grib2 \
  grib2/2015/2015.01/fnl_20150101_06_00.grib2 \
)
while($#filelist > 0)
 set syscmd = "$opt2$filelist[1]"
 echo "$syscmd ..."
 $syscmd
 shift filelist
end

rm -f auth.rda_ucar_edu Authentication.log
exit 0

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