LINUX COMMANDS

wget [options] [urls]

Perform noninteractive file downloads from the Web. wget works in the background and can be used to set up and run a download
without the user having to remain logged on. wget supports HTTP, HTTPS, and FTP, as well as downloads through HTTP proxies. wget uses a global startup file that you may find at /etc/wgetrc or /usr/local/etc/wgetrc. In addition, users can define their own  $HOME/.wgetrc files.

Linux Commad Options:

-b, --background
Go into the background immediately after startup, writing output to the file specified with -o or to wget-log.
-B url, --base=url
Used with -F to prepend the specified URL to relative links in the input file specified with -i.
--bind-address=address
When making client TCP/IP connections, bind( ) to the specified local address, which can be specified as a hostname or IP address. Useful if your system is bound to multiple IP addresses.
--connect-timeout=seconds
Set the timeout for a connection to be established in seconds. The default is never to time out, unless a timeout is implemented
by system libraries.
--cut-dirs=num
Ignore the specified number of directory components when creating the local directory structure.
-d, --debug
Turn on debugging. wget must have been compiled with debug support.

-D domainlist, --domains=domainlist
Specify a comma-separated list of domains to be followed. Does not turn on -H.
--delete-after
Delete each retrieved file from the local machine after downloading it. Useful for prefetching pages through a proxy. -k is
ignored if specified with --delete-after.
--dns-timeout=seconds
Set the DNS lookup timeout to seconds. The default is to never time out.
-e command, --execute=command
Execute the specified command after the commands in .wgetrc, overriding any .wgetrc commands. Can be included multiple times, once for each command to execute.
-E, --html-extension
Append the suffix .html to the filenames of downloaded files where the URL does not include it (for example, an .asp file).
--exclude-domains=domainlist
Specify a comma-separated list of names that are never to be followed.
-F, --force-html
When reading input from a file, force the file to be treated as an HTML file.
--follow-ftp
Follow FTP links from HTML documents. The default is to ignore FTP links.
--follow-tags=list
Specify a comma-separated list of tags to be considered, overriding the internal table that wget normally uses during a recursive retrieval.
--ftp-user, --ftp-password
Specify the user name and password on an FTP server.
-h, --help
Display usage information and exit.
-H, --span-hosts
Enable spanning across hosts when doing recursive retrieval.
--header=header
Add an additional header to be passed to the HTTP server. The header must include a colon (:) preceded by at least one nonblank character, and with no newline characters. Can be specified multiple times. If header is an empty string, all userdefined headers are cleared.
--http-user=user, --http-password=password
Specify the username and password on an HTTP server.
-i file, --input-file=file
Read URLs from the specified file. URLs specified on the command line are accessed before URLs in the file. If file is given as -, read from standard input.

Examples:

 wget -c http://www.example.com/large.file      Continue downloading a partially downloaded file