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Top Forums Shell Programming and Scripting Merge all the files in a folder in FIFO order Post 302656487 by alister on Thursday 14th of June 2012 07:04:37 PM
Old 06-14-2012
Quote:
Originally Posted by Lem
Intead of
Code:
stat -c %y $item;

try with
Code:
date -r $item;

Both of those commands will only work with GNU/Linux tools.


Quote:
Originally Posted by Lem
You seem to have a minimal system... something like a standalone busybox.
It lacks many things. You have to try and find what works.
unankix ought to answer your question and let us know which operating system is in use.

More likely, it's a full-fledged UNIX (perhaps Solaris), just not GNU/Linux. Compared to GNU, most UNIX versions of the standard tools are spartan.

The POSIX date command only supports one option, -u. On BSD systems, there is a -r option, but it does not take a file argument.

The stat command isn't even part of any standard, so it can vary a great deal from one UNIX system to another (if it's even there). On a BSD-ish system, stat doesn't support a -c option, but similar functionality is implemented with -f. However, you cannot simply change -c into -f because the format specifying arguments work differently.

The world is a much simpler place if you only have to work with one UNIX flavor, but, if you're interested in knowing how your tools compare to a portable baseline, the POSIX manual pages will be of use to you: Utilities

On an unrelated note, it's also a good idea to double quote, "$item", to protect the result of parameter expansion from further expansion (namely, file globbing), since we don't know anything about any constraints on the pathnames.

Regards,
Alister

Last edited by alister; 06-14-2012 at 08:11 PM..
 

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RAKE(1) 						 Ruby Programmers Reference Guide						   RAKE(1)

NAME
rake -- Ruby Make SYNOPSIS
rake [--f Rakefile] [--version] [-CGNPgnqstv] [-D [PATTERN]] [-E CODE] [-I LIBDIR] [-R RAKELIBDIR] [-T [PATTERN]] [-e CODE] [-p CODE] [-r MODULE] [--rules] [variable=value] target ... DESCRIPTION
Rake is a simple ruby(1) build program with capabilities similar to the regular make(1) command. Rake has the following features: o Rakefiles (Rake's version of Makefiles) are completely defined in standard Ruby syntax. No XML files to edit. No quirky Makefile syntax to worry about (is that a tab or a space?). o Users can specify tasks with prerequisites. o Rake supports rule patterns to synthesize implicit tasks. o Flexible FileLists that act like arrays but know about manipulating file names and paths. o A library of prepackaged tasks to make building rakefiles easier. OPTIONS
--version Display the program version. -C --classic-namespace Put Task and FileTask in the top level namespace -D [PATTERN] --describe [PATTERN] Describe the tasks (matching optional PATTERN), then exit. -E CODE --execute-continue CODE Execute some Ruby code, then continue with normal task processing. -G --no-system --nosystem Use standard project Rakefile search paths, ignore system wide rakefiles. -I LIBDIR --libdir LIBDIR Include LIBDIR in the search path for required modules. -N --no-search --nosearch Do not search parent directories for the Rakefile. -P --prereqs Display the tasks and dependencies, then exit. -R RAKELIBDIR --rakelib RAKELIBDIR --rakelibdir RAKELIBDIR Auto-import any .rake files in RAKELIBDIR. (default is rakelib ) -T [PATTERN] --tasks [PATTERN] Display the tasks (matching optional PATTERN) with descriptions, then exit. -e CODE --execute CODE Execute some Ruby code and exit. -f FILE --rakefile FILE Use FILE as the rakefile. -h --help Prints a summary of options. -g --system Using system wide (global) rakefiles (usually ~/.rake/*.rake ). -n --dry-run Do a dry run without executing actions. -p CODE --execute-print CODE Execute some Ruby code, print the result, then exit. -q --quiet Do not log messages to standard output. -r MODULE --require MODULE Require MODULE before executing rakefile. -s --silent Like --quiet, but also suppresses the 'in directory' announcement. -t --trace Turn on invoke/execute tracing, enable full backtrace. -v --verbose Log message to standard output (default). --rules Trace the rules resolution. SEE ALSO
ruby(1) make(1) http://rake.rubyforge.org/ REPORTING BUGS
Bugs, features requests and other issues can be logged at <http://onestepback.org/redmine/projects/show/rake>. You will need an account to before you can post issues. Register at <http://onestepback.org/redmine/account/register>. Or you can send an email to the author. AUTHOR
Rake is written by Jim Weirich <jim@weirichhouse.org> UNIX
November 7, 2012 UNIX
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