Wget
From Christoph's Personal Wiki
wget — The non-interactive network downloader.
Contents
Usage
- Simple download:
$ wget http://www.example.com/index.html
- Download a file and store it locally using a different file name:
$ wget -O example.html http://www.example.com/index.html
- Background download:
$ wget -b https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.0.4.tar.gz $ tail -f wget-log # <- monitor download
The above command is useful when you initiate a download via a remote machine. This will start downloading in background, so that you can disconnect the terminal once the command is issued.
- Mirror an entire web site:
$ wget -m http://www.example.com
- Mirror an entire subdirectory of a web site (with no parent option in case of backlinks):
$ wget -mk -w 20 -np http://example.com/foo/
- Download all pages from a site and the pages the site links to (one-level deep):
$ wget -H -r --level=1 -k -p http://www.example.com
- Resume large file download:
$ wget -c --output-document=MIT8.01F99-L01.mp4 "https://www.youtube.com/watch?v=X9c0MRooBzQ"
- Schedule hourly downloads of a file
$ wget --output-document=traffic_$(date +\%Y\%m\%d\%H).gif "http://sm3.sitemeter.com/YOUR_CODE"
- Automatically download music (by Jeff Veen):
$ wget -r -l1 -H -t1 -nd -N -np -A.mp3 -erobots=off -i mp3_sites.txt
where mp3_sites.txt lists your favourite (legal) download sites.
#~OR~ $ wget -r --level=1 -H --timeout=1 -nd -N -np --accept=mp3 -e robots=off -i musicblogs.txt
- Download all mp3's listed in an html page (source):
$ wget -r -l1 -H -t1 -nd -N -np -A.mp3 -erobots=off [url of website] #-r: recursive #-l1: depth = 1 #-H: span hosts #-t1: try once #-nd: no heirarchy of directories #-N: turn on time-stamping #-np: do not ascend to parents #-A.mp3: accept only mp3 files #-erobots=off: ignore robots.txt
- Crawl a website and generate a log file of any broken links:
$ wget --spider -o wget.log -e robots=off --wait 1 -r -p http://www.example.com/
- Force wget to mimic a browser's user-agent (e.g., http://whatsmyuseragent.com/):
$ wget --user-agent="Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:38.0) Gecko/20100101 Firefox/38.0" https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.0.4.tar.gz
- Limit download speed/rate:
$ wget --limit-rate=300k https://www.kernel.org/pub/linux/kernel/v4.x/linux-4.0.4.tar.gz
- Get headers:
$ wget -SO /dev/null xtof.ch --2021-09-13 00:14:04-- http://xtof.ch/ Resolving xtof.ch (xtof.ch)... 1.2.3.4 Connecting to xtof.ch (xtof.ch)|1.2.3.4|:80... connected. HTTP request sent, awaiting response... HTTP/1.1 200 OK Date: Mon, 13 Sep 2021 07:14:04 GMT Server: Apache/2.4.37 (centos) Last-Modified: Tue, 28 Jul 2020 23:13:16 GMT ETag: "d2-5ab88958ae676" Accept-Ranges: bytes Content-Length: 210 Keep-Alive: timeout=5, max=100 Connection: Keep-Alive Content-Type: text/html; charset=UTF-8 Length: 210 [text/html] Saving to: ‘/dev/null’
Download multiple files
- Create variable that holds all URLs and then using "BASH for loop" to download all files:
$ URLS="http://www.example.com/foo.tar.gz ftp://ftp.example.org/pub/bar.tar.gz"
- Use for loop as follows:
$ for u in $URLS; do wget $u; done
- You can also put a list of the URLs in a file and download using the
-ioption:
$ wget -i download.txt
Automating/scripting download process
#!/bin/sh
# wget-list: manage the list of downloaded files
# invoke wget-list without arguments
while [ $(find .wget-list -size +0) ]; do
url=$(head -n1 .wget-list)
wget -c ${url}
sed -si 1d .wget-list
done
#!/bin/sh # wget-all: process .wget-list in every subdirectory # invoke wget-all without arguments find -name .wget-list -execdir wget-list ';'
#!/bin/sh
# wget-dirs: run wget-all in specified directories
# invoking: wget-dirs <path-to-directory> ...
for dir in $*; do
pushd ${dir}
wget-all
popd
done
wget-all
See also
External links
- GNU Wget Manual — last update: 15-Jun-2005
- Geek to Live: Mastering Wget — via lifehacker.com
- wget: your ultimate command line downloader
