Provided by: coreutils_7.4-2ubuntu2_i386
dirname - strip non-directory suffix from file name
Print NAME with its trailing /component removed; if NAME contains no
/’s, output ‘.’ (meaning the current directory).
--help display this help and exit
output version information and exit
Written by David MacKenzie and Jim Meyering.
Report dirname bugs to firstname.lastname@example.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Copyright © 2009 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
The full documentation for dirname is maintained as a Texinfo manual.
If the info and dirname programs are properly installed at your site,
info coreutils 'dirname invocation'
should give you access to the complete manual.