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#!/bin/sh
prog=${0##*/}
usage() {
cat <<EOF
usage: wget [-cqS] [--spider] [-O FILE] [-o LOGFILE] [--header STR]
[--post-data STR | --post-file FILE] [-Y on/off]
[-P DIR] [-U AGENT] [-T SEC] URL...
Retrieve files via HTTP or FTP
--spider Only check URL existence: \$? is 0 if exists
--header STR Add STR (of form 'header: value') to headers
--post-data STR Send STR using POST method
--post-file FILE Send FILE using POST method
-c Continue retrieval of aborted transfer
-q Quiet
-P DIR Save to DIR (default .)
-S Show server response
-T SEC Network read timeout is SEC seconds
-O FILE Save to FILE ('-' for stdout)
-o LOGFILE Log messages to FILE
-U STR Use STR for User-Agent header
-Y on/off Use proxy
EOF
exit $1
}
msg() {
if ! [ -n "$quiet" ]; then
# busybox wget sends to stderr
echo "$@" >&2
fi
}
OPTS=$(getopt -l quiet,help,spider,timeout,tries -o "qhO:T:t:" -n $prog -- "$@") || usage "1" >&2
quiet=
eval set -- "$OPTS"
while true; do
opt="$1"
case "$opt" in
-h|--help)
usage 0
;;
-q|--quiet)
quiet=1
;;
--spider)
exit ${SPIDER_STATUS:-0}
;;
-O)
shift
outfile="$1"
;;
-T|--timeout) shift;;
-t|--tries) shift;;
--)
shift
break
;;
*) usage "1" >&2
;;
esac
shift
done
if [ $# -eq 0 ]; then
usage "1" >&2
fi
for url; do
case "$url" in
"") msg "bad address"; exit 1;;
*fail*) msg "bad address"; exit 1;;
*404*) msg "wget: server returned error: HTTP/1.1 404 Not Found"; exit 1;;
esac
done
: ${outfile:=index.html}
case "$outfile" in
-) msg "writing to stdout"
echo "$WGETCONTENT"
;;
*) msg "saving to '$outfile'"
echo "$WGETCONTENT" > "$outfile"
;;
esac
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