wgetコマンドはhttp/ftpでデータをコマンドラインベースで一括して取得するツールです。
[動作環境]
Linuxではデフォルトで使用できるようです。
Windows上ではcygwinで使えます。
[cygwinとwget]
cygwinのデフォルトインストールでは、wgetはインストールされません。以下の手順でインストールパッケージに含めます。
cygwinのsetup.exeを起動します。 "select package"の画面が出るまで"next"ボタンをクリックします。 "select package"画面で、カテゴリ"Web"を選択します。この中にwgetがあります。 "skip"欄をクリックするとバージョン番号が出ます。これでインストールパッケージに含まれます。
[基本的な使い方]
ホームページを取得します。
$ wget http://www.jp.freebsd.org/man-jp/howto.html
あらかじめファイルに記述されたURLからホームページを取得します。
$ cat wgetin http://www.jp.freebsd.org/man-jp/howto.html http://www.jp.freebsd.org/man-jp/howto_22.html $ wget -i wgetin
[再帰的な読み込み]
再帰的にホームページを取得します。
$ wget -r http://www.jp.freebsd.org/man-jp/howto.html
1階層だけホームページを再帰的に取得します。
$ wget -r -l 1 http://www.jp.freebsd.org/man-jp/howto.html
[サーバーとのやり取りを表示します]
$ wget -S http://www.jp.freebsd.org/man-jp/howto.html
[ssl]
wget --no-check-certificate https://-------
[wgetのヘルプ]
$ wget --help GNU Wget 1.10.2, a non-interactive network retriever. Usage: wget [OPTION]... [URL]...
Mandatory arguments to long options are mandatory for short options too.
Startup: -V, --version display the version of Wget and exit. -h, --help print this help. -b, --background go to background after startup. -e, --execute=COMMAND execute a `.wgetrc'-style command.
Logging and input file: -o, --output-file=FILE log messages to FILE. -a, --append-output=FILE append messages to FILE. -d, --debug print lots of debugging information. -q, --quiet quiet (no output). -v, --verbose be verbose (this is the default). -nv, --no-verbose turn off verboseness, without being quiet. -i, --input-file=FILE download URLs found in FILE. -F, --force-html treat input file as HTML. -B, --base=URL prepends URL to relative links in -F -i file.
Download:
-t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).
--retry-connrefused retry even if connection is refused.
-O, --output-document=FILE write documents to FILE.
-nc, --no-clobber skip downloads that would download to
existing files.
-c, --continue resume getting a partially-downloaded file.
--progress=TYPE select progress gauge type.
-N, --timestamping don't re-retrieve files unless newer than
local.
-S, --server-response print server response.
--spider don't download anything.
-T, --timeout=SECONDS set all timeout values to SECONDS.
--dns-timeout=SECS set the DNS lookup timeout to SECS.
--connect-timeout=SECS set the connect timeout to SECS.
--read-timeout=SECS set the read timeout to SECS.
-w, --wait=SECONDS wait SECONDS between retrievals.
--waitretry=SECONDS wait 1..SECONDS between retries of a retrieval.
--random-wait wait from 0...2*WAIT secs between retrievals.
-Y, --proxy explicitly turn on proxy.
--no-proxy explicitly turn off proxy.
-Q, --quota=NUMBER set retrieval quota to NUMBER.
--bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.
--limit-rate=RATE limit download rate to RATE.
--no-dns-cache disable caching DNS lookups.
--restrict-file-names=OS restrict chars in file names to ones OS allows.
--user=USER set both ftp and http user to USER.
--password=PASS set both ftp and http password to PASS.
Directories:
-nd, --no-directories don't create directories.
-x, --force-directories force creation of directories.
-nH, --no-host-directories don't create host directories.
--protocol-directories use protocol name in directories.
-P, --directory-prefix=PREFIX save files to PREFIX/...
--cut-dirs=NUMBER ignore NUMBER remote directory components.
HTTP options:
--http-user=USER set http user to USER.
--http-password=PASS set http password to PASS.
--no-cache disallow server-cached data.
-E, --html-extension save HTML documents with `.html' extension.
--ignore-length ignore `Content-Length' header field.
--header=STRING insert STRING among the headers.
--proxy-user=USER set USER as proxy username.
--proxy-password=PASS set PASS as proxy password.
--referer=URL include `Referer: URL' header in HTTP request.
--save-headers save the HTTP headers to file.
-U, --user-agent=AGENT identify as AGENT instead of Wget/VERSION.
--no-http-keep-alive disable HTTP keep-alive (persistent connections).
--no-cookies don't use cookies.
--load-cookies=FILE load cookies from FILE before session.
--save-cookies=FILE save cookies to FILE after session.
--keep-session-cookies load and save session (non-permanent) cookies.
--post-data=STRING use the POST method; send STRING as the data.
--post-file=FILE use the POST method; send contents of FILE.
HTTPS (SSL/TLS) options:
--secure-protocol=PR choose secure protocol, one of auto, SSLv2,
SSLv3, and TLSv1.
--no-check-certificate don't validate the server's certificate.
--certificate=FILE client certificate file.
--certificate-type=TYPE client certificate type, PEM or DER.
--private-key=FILE private key file.
--private-key-type=TYPE private key type, PEM or DER.
--ca-certificate=FILE file with the bundle of CA's.
--ca-directory=DIR directory where hash list of CA's is stored.
--random-file=FILE file with random data for seeding the SSL PRNG.
--egd-file=FILE file naming the EGD socket with random data.
FTP options:
--ftp-user=USER set ftp user to USER.
--ftp-password=PASS set ftp password to PASS.
--no-remove-listing don't remove `.listing' files.
--no-glob turn off FTP file name globbing.
--no-passive-ftp disable the "passive" transfer mode.
--retr-symlinks when recursing, get linked-to files (not dir).
--preserve-permissions preserve remote file permissions.
Recursive download:
-r, --recursive specify recursive download.
-l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).
--delete-after delete files locally after downloading them.
-k, --convert-links make links in downloaded HTML point to local files.
-K, --backup-converted before converting file X, back up as X.orig.
-m, --mirror shortcut for -N -r -l inf --no-remove-listing.
-p, --page-requisites get all images, etc. needed to display HTML page.
--strict-comments turn on strict (SGML) handling of HTML comments.
Recursive accept/reject:
-A, --accept=LIST comma-separated list of accepted extensions.
-R, --reject=LIST comma-separated list of rejected extensions.
-D, --domains=LIST comma-separated list of accepted domains.
--exclude-domains=LIST comma-separated list of rejected domains.
--follow-ftp follow FTP links from HTML documents.
--follow-tags=LIST comma-separated list of followed HTML tags.
--ignore-tags=LIST comma-separated list of ignored HTML tags.
-H, --span-hosts go to foreign hosts when recursive.
-L, --relative follow relative links only.
-I, --include-directories=LIST list of allowed directories.
-X, --exclude-directories=LIST list of excluded directories.
-np, --no-parent don't ascend to the parent directory.
Mail bug reports and suggestions to <bug-wget@gnu.org>.