wget https://arxiv.org/pdf/0903.0544.pdf
--2020-10-24 07:54:18-- https://arxiv.org/pdf/0903.0544.pdf
Resolving arxiv.org (arxiv.org)... 128.84.21.199
Connecting to arxiv.org (arxiv.org)|128.84.21.199|:443... connected.
HTTP request sent, awaiting response... 403 Forbidden
2020-10-24 07:54:19 ERROR 403: Forbidden.

wget -h 
GNU Wget 1.19.4, 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
 --report-speed=TYPE output bandwidth as TYPE. TYPE can be bits
 -i, --input-file=FILE download URLs found in local or external FILE
 -F, --force-html treat input file as HTML
 -B, --base=URL resolves HTML input-file links (-i -F)
 relative to URL
 --config=FILE specify config file to use
 --no-config do not read any config file
 --rejected-log=FILE log reasons for URL rejection to 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 (overwriting them)
 --no-netrc don't try to obtain credentials from .netrc
 -c, --continue resume getting a partially-downloaded file
 --start-pos=OFFSET start downloading from zero-based position OFFSET
 --progress=TYPE select progress gauge type
 --show-progress display the progress bar in any verbosity mode
 -N, --timestamping don't re-retrieve files unless newer than
 local
 --no-if-modified-since don't use conditional if-modified-since get
 requests in timestamping mode
 --no-use-server-timestamps don't set the local file's timestamp by
 the one on the server
 -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 0.5*WAIT...1.5*WAIT secs between retrievals
 --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
 --ignore-case ignore case when matching files/directories
 -4, --inet4-only connect only to IPv4 addresses
 -6, --inet6-only connect only to IPv6 addresses
 --prefer-family=FAMILY connect first to addresses of specified family,
 one of IPv6, IPv4, or none
 --user=USER set both ftp and http user to USER
 --password=PASS set both ftp and http password to PASS
 --ask-password prompt for passwords
 --use-askpass=COMMAND specify credential handler for requesting 
 username and password. If no COMMAND is 
 specified the WGET_ASKPASS or the SSH_ASKPASS 
 environment variable is used.
 --no-iri turn off IRI support
 --local-encoding=ENC use ENC as the local encoding for IRIs
 --remote-encoding=ENC use ENC as the default remote encoding
 --unlink remove file before clobber
 --xattr turn on storage of metadata in extended file attributes

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
 --default-page=NAME change the default page name (normally
 this is 'index.html'.)
 -E, --adjust-extension save HTML/CSS documents with proper extensions
 --ignore-length ignore 'Content-Length' header field
 --header=STRING insert STRING among the headers
 --max-redirect maximum redirections allowed per page
 --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
 --method=HTTPMethod use method "HTTPMethod" in the request
 --body-data=STRING send STRING as data. --method MUST be set
 --body-file=FILE send contents of FILE. --method MUST be set
 --content-disposition honor the Content-Disposition header when
 choosing local file names (EXPERIMENTAL)
 --content-on-error output the received content on server errors
 --auth-no-challenge send Basic HTTP authentication information
 without first waiting for the server's
 challenge

HTTPS (SSL/TLS) options:
 --secure-protocol=PR choose secure protocol, one of auto, SSLv2,
 SSLv3, TLSv1, TLSv1_1, TLSv1_2 and PFS
 --https-only only follow secure HTTPS links
 --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 CAs
 --ca-directory=DIR directory where hash list of CAs is stored
 --crl-file=FILE file with bundle of CRLs
 --pinnedpubkey=FILE/HASHES Public key (PEM/DER) file, or any number
 of base64 encoded sha256 hashes preceded by
 'sha256//' and separated by ';', to verify
 peer against
 --random-file=FILE file with random data for seeding the SSL PRNG

HSTS options:
 --no-hsts disable HSTS
 --hsts-file path of HSTS database (will override default)

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
 --preserve-permissions preserve remote file permissions
 --retr-symlinks when recursing, get linked-to files (not dir)

FTPS options:
 --ftps-implicit use implicit FTPS (default port is 990)
 --ftps-resume-ssl resume the SSL/TLS session started in the control connection when
 opening a data connection
 --ftps-clear-data-connection cipher the control channel only; all the data will be in plaintext
 --ftps-fallback-to-ftp fall back to FTP if FTPS is not supported in the target server
WARC options:
 --warc-file=FILENAME save request/response data to a .warc.gz file
 --warc-header=STRING insert STRING into the warcinfo record
 --warc-max-size=NUMBER set maximum size of WARC files to NUMBER
 --warc-cdx write CDX index files
 --warc-dedup=FILENAME do not store records listed in this CDX file
 --no-warc-digests do not calculate SHA1 digests
 --no-warc-keep-log do not store the log file in a WARC record
 --warc-tempdir=DIRECTORY location for temporary files created by the
 WARC writer

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 or CSS point to
 local files
 --convert-file-only convert the file part of the URLs only (usually known as the basename)
 --backups=N before writing file X, rotate up to N backup 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
 --accept-regex=REGEX regex matching accepted URLs
 --reject-regex=REGEX regex matching rejected URLs
 --regex-type=TYPE regex type (posix|pcre)
 -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
 --trust-server-names use the name specified by the redirection
 URL's last component
 -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>