how to simulate "mkdir -p /home/blah1/blah2/blah3" in "c" where only /home exist Post: 302359450

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Top Forums Programming how to simulate "mkdir -p /home/blah1/blah2/blah3" in "c" where only /home exist Post 302359450 by achenle on Tuesday 6th of October 2009 02:55:30 PM

10-06-2009

Registered User

Quote:

Originally Posted by emitrax

The best way is probably to iterate and call mkdir and chdir every time.
I'm actually in the process of doing something similar, and that's the way I'll go.
Constructing the (full) path every time is quite annoying, while changing the working
directory should be more easy.

S.

That solution introduces an effect that impacts the entire process it's running in: the changing of the current directory.

If you do something like that you will then have what's almost certainly an undocumented and definitely an unnecessary dependency on the internal implementation of what should in theory be reusable code. Unless you fully document all the internals of such calls, then you'll only have an unnecessary dependency.

And you'll outright break multithreaded apps because threads other than the one calling a mkdir() call that changes the current directory will have the current directory modified right out from under their processing.

achenle

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LEARN ABOUT DEBIAN

mkdir

MKDIR(1)							   User Commands							  MKDIR(1)

NAME

       mkdir - make directories

SYNOPSIS

       mkdir [OPTION]... DIRECTORY...

DESCRIPTION

       Create the DIRECTORY(ies), if they do not already exist.

       Mandatory arguments to long options are mandatory for short options too.

       -m, --mode=MODE
	      set file mode (as in chmod), not a=rwx - umask

       -p, --parents
	      no error if existing, make parent directories as needed

       -v, --verbose
	      print a message for each created directory

       -Z, --context=CTX
	      set the SELinux security context of each created directory to CTX

       --help display this help and exit

       --version
	      output version information and exit

AUTHOR

       Written by David MacKenzie.

REPORTING BUGS

       Report mkdir bugs to bug-coreutils@gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report mkdir translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2011 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.

SEE ALSO

       mkdir(2)

       The  full  documentation  for mkdir is maintained as a Texinfo manual.  If the info and mkdir programs are properly installed at your site,
       the command

	      info coreutils 'mkdir invocation'

       should give you access to the complete manual.

GNU coreutils 8.12.197-032bb					  September 2011							  MKDIR(1)