2 .\" Copyright (c) 2000-2004 Dag-Erling Coïdan Smørgrav
3 .\" All rights reserved.
4 .\" Portions Copyright (c) 1999 Massachusetts Institute of Technology; used
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8 .\" modification, are permitted provided that the following conditions
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30 .\" $FreeBSD: src/usr.bin/fetch/fetch.1,v 1.70 2008/12/15 08:27:44 murray Exp $
31 .\" $DragonFly: src/usr.bin/fetch/fetch.1,v 1.4 2007/08/05 21:48:12 swildner Exp $
38 .Nd retrieve a file by Uniform Resource Locator
41 .Op Fl 146AadFlMmnPpqRrsUv
51 .Op Fl 146AadFlMmnPpqRrsUv
59 .Fl h Ar host Fl f Ar file Oo Fl c Ar dir Oc
63 utility provides a command-line interface to the
66 Its purpose is to retrieve the file(s) pointed to by the URL(s) on the
69 The following options are available:
72 Stop and return exit code 0 at the first successfully retrieved file.
76 to use IPv4 addresses only.
80 to use IPv6 addresses only.
82 Do not automatically follow ``temporary'' (302) redirects.
83 Some broken Web sites will return a redirect instead of a not-found
84 error when the requested object does not exist.
86 Automatically retry the transfer upon soft failures.
88 Specify the read buffer size in bytes.
89 The default is 4096 bytes.
90 Attempts to set a buffer size lower than this will be silently
92 The number of reads actually performed is reported at verbosity level
93 two or higher (see the
97 The file to retrieve is in directory
100 This option is deprecated and is provided for backward compatibility
103 Use a direct connection even if a proxy is configured.
105 In combination with the
107 flag, forces a restart even if the local and remote files have
108 different modification times.
112 The file to retrieve is named
115 This option is deprecated and is provided for backward compatibility
118 The file to retrieve is located on the host
120 This option is deprecated and is provided for backward compatibility
123 If-Modified-Since mode: the remote file will only be retrieved if it
129 If the target is a file-scheme URL, make a symbolic link to the target
130 rather than trying to copy it.
133 Mirror mode: if the file already exists locally and has the same size
134 and modification time as the remote file, it will not be fetched.
139 flags are mutually exclusive.
145 to look up login names and passwords for FTP sites.
148 for a description of the file format.
149 This feature is experimental.
151 Do not preserve the modification time of the transferred file.
153 Set the output file name to
155 By default, a ``pathname'' is extracted from the specified URI, and
156 its basename is used as the name of the output file.
161 indicates that results are to be directed to the standard output.
164 argument is a directory, fetched file(s) will be placed within the
165 directory, with name(s) selected as in the default behaviour.
169 This is useful if you are behind a firewall which blocks incoming
173 seems to hang when retrieving FTP URLs.
177 The output files are precious, and should not be deleted under any
178 circumstances, even if the transfer failed or was incomplete.
180 Restart a previously interrupted transfer.
185 flags are mutually exclusive.
187 Require the file size reported by the server to match the specified
189 If it does not, a message is printed and the file is not fetched.
190 If the server does not support reporting file sizes, this option is
191 ignored and the file is fetched unconditionally.
193 Print the size in bytes of each requested file, without fetching it.
197 Overrides the environment variables
201 for HTTP transfers if set.
203 When using passive FTP, allocate the port for the data connection from
204 the low (default) port range.
207 for details on how to specify which port range this corresponds to.
209 Increase verbosity level.
213 flag is specified, wait this many seconds between successive retries.
224 the current transfer rate statistics will be written to the
225 standard error output, in the same format as the standard completion
228 .Bl -tag -width HTTP_TIMEOUT
230 Maximum time, in seconds, to wait before aborting an FTP connection.
232 Maximum time, in seconds, to wait before aborting an HTTP connection.
237 for a description of additional environment variables, including
238 .Ev FETCH_BIND_ADDRESS ,
240 .Ev FTP_PASSIVE_MODE ,
247 .Ev HTTP_PROXY_AUTH ,
249 .Ev HTTP_USER_AGENT ,
256 command returns zero on success, or one on failure.
257 If multiple URLs are listed on the command line,
259 will attempt to retrieve each one of them in turn, and will return
260 zero only if they were all successfully retrieved.
264 argument is used and the remote file is not newer than the
265 specified file then the command will still return success,
266 although no file is transferred.
274 This implementation first appeared in
278 The original implementation of
281 .An Jean-Marc Zucconi Aq jmz@FreeBSD.org .
282 It was extensively re-worked for
285 .An Garrett Wollman Aq wollman@FreeBSD.org ,
286 and later completely rewritten to use the
289 .An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org .
295 options are no longer supported and will generate warnings.
296 They were workarounds for bugs in other OSes which this implementation
299 One cannot both use the
304 options and specify URLs on the command line.