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Message #00169
[Bug 1009045] Re: md5sum 'backslash-in-filename' feature is not documented in man page
Thank you for opening this bug and helping make Ubuntu better.
This is not a bug. Coreutils (as most of GNU packages) uses Texinfo as
the primary source for documentation. The man pages are a summary
*only*; for full docs, the user is referred to 'info':
The full documentation for md5sum is maintained as a Texinfo manual.
If the info and md5sum programs are properly installed at your site,
the command
info coreutils 'md5sum invocation'
should give you access to the complete manual.
As such, closing this as not-a-bug.
** Changed in: coreutils (Ubuntu)
Status: Confirmed => Invalid
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https://bugs.launchpad.net/bugs/1009045
Title:
md5sum 'backslash-in-filename' feature is not documented in man page
Status in “coreutils” package in Ubuntu:
Invalid
Bug description:
Encountered in
Description : Ubuntu 10.04.4 LTS
Release : 10.04
using
md5sum (GNU coreutils) 7.4
$ apt-cache policy coreutils
coreutils:
Installed: 7.4-2ubuntu3
Candidate: 7.4-2ubuntu3
Version table:
*** 7.4-2ubuntu3 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid-updates/main Packages
100 /var/lib/dpkg/status
7.4-2ubuntu2 0
500 http://us.archive.ubuntu.com/ubuntu/ lucid/main Packages
Related to
https://bugs.launchpad.net/ubuntu/+source/coreutils/+bug/53584
The following information is in "info coreutils 'md5sum invocation'"
For each FILE, `md5sum' outputs the MD5 checksum, a flag indicating
a binary or text input file, and the file name. If FILE contains a
backslash or newline, the line is started with a backslash, and each
problematic character in the file name is escaped with a backslash,
making the output unambiguous even in the presence of arbitrary file
names. If FILE is omitted or specified as `-', standard input is read.
The corresponding section in the man page reads as follows:
The sums are computed as described in RFC 1321. When checking, the input should be a former output of this
program. The default mode is to print a line with checksum, a character indicating type (`*' for binary, `
' for text), and name for each FILE.
The documentation of the behaviour of md5sum when given filenames
containing backslashes is missing from the man page, and was
unexpected behaviour when I first encountered it.
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